Test the claim that the proportion of men who own cats is significantly different than 45% at the 0.05 significance level. In a random sample of 120 men, 80 men owned cats. The P-value of this sample is (to 4 decimals).
Q: Is the proportion of wildfires caused by humans in the south higher than the proportion of wildfires…
A:
Q: A study was conducted to determine the proportion of people who dream in black and white instead of…
A: The sample size of people above age 55(n1) =The sample size of people under the age 25 (n2) =…
Q: In a random sample of 580 people aged 20-24, 110 owned an iPad. In a random sample of 450 people…
A:
Q: A study was conducted to determine the proportion of people who dream in black and white instead of…
A: Confidence interval are used to determine the range where the true parameter lies. It calculated…
Q: From past experience, a teacher believes. score on an exam is 75. A sample of 20 follows: 78, 75,…
A:
Q: Is the proportion of wildfires caused by humans in the south lower than the proportion of wildfires…
A: As per our guidelines we are supposed to answer only 3 sub-parts of any questions so i am solving…
Q: Is the proportion of wildfires caused by humans in the south higher than the proportion of wildfires…
A: a. Denote p1, p2 as the true population proportions of wildfires caused by human in south and west,…
Q: Test the claim that the proportion of people who own cats is significantly different than 20% at the…
A: Given that Sample size: n =400 Sample proportion: p^=0.12 Population proportion: P=0.20 Level of…
Q: A study was conducted to determine the proportion of people who dream in black and white instead of…
A: Denote p1, p2 as the true population proportions of people, who dream in black and white over the…
Q: suppose that in a random selection of 100 colored candies, 26% of them are blue. The candy company…
A:
Q: A study was conducted to determine the proportion of people who dream in black and white instead of…
A: We have given that x1 = 71 , n1 = 323 x2 = 14, n2 = 288 Significance level (α) = 0.05
Q: A social scientist is comparing sample data regarding the number of cars owned per household in a…
A: The sample data about the no. of owned cars per household in the city is compared by the social…
Q: Test the claim that the proportion of people who own cats is smaller than 70% at the 0.01…
A: Given: Sample size (n) = 500 The hypotheses are as follow: H0: p = 0.70 H1: p < 0.70 Sample…
Q: Is the proportion of wildfires caused by humans in the south higher than the proportion of wildfires…
A:
Q: Test the claim that the proportion of men who own cats is less than 40% at the 0.05 significance…
A: Given that Claim : The proportion of men who own cats is less than 40% Level of significance (α) =…
Q: Suppose that data are collected from a random sample of 48 male students and 91 female students at a…
A:
Q: A software company is interested in improving customer satisfaction rate from the 61% currently…
A: It is given that x=176, n=267 and P=0.61.
Q: Is the proportion of wildfires caused by humans in the south different from the proportion of…
A: n1=590,x1=386,n2=538,x2=363
Q: Test the claim that the proportion of people who own cats is larger than 80% at the 0.025…
A:
Q: A software company is interested in improving customer satisfaction rate from the 61% currently…
A:
Q: A study was conducted to determine the proportion of people who dream in black and white instead of…
A:
Q: Suppose IQ scores were obtained for 20 randomly selected sets of couples. The 20 pairs of…
A: y^ = 1.15 + 1.02x
Q: A study was conducted to determine the proportion of people who dream in black and white instead of…
A:
Q: Is the proportion of wildfires caused by humans in the south different from the proportion of…
A: Let us consider the two samples which are independent. Let the observation in each samples are taken…
Q: c. The test statistic (z v = (please show your answer to 3 decimal places.) d. The p-value = (Please…
A: We have to find test statistics and p value..
Q: An online magazine article reported that US adults spend an average of $50 on birthday gifts for…
A: The smallest level of significance at which the null hypothesis is rejected is given by the p-value.
Q: Would you favor spending more federal tax money on the arts? Of a random sample of n1 = 236 women,…
A: From the provided information,
Q: A study was conducted to determine the proportion of people who dream in black and white instead of…
A: Given n1=295 n2=292 X1=74 X2=14
Q: Test the claim that the proportion of people who own cats is smaller than 70% at the 0.01…
A: Hypothesis Ho: p=0.70 vs H1: p< 0.70 Given Alpha= 0.01, pcap= 0.64, n=500
Q: Is there a difference in the proportion of individuals with food allergies between young children…
A: Denote p1 is true proportion of young children have food allergy and p2 is the true proportion of…
Q: Researchers claimed that women exercise at the same proportion as men do. To test this claim, a…
A: For the given data Perform Z test for two proportions
Q: In a random sample of 315 people 90 of them were smokers. Based on the above sample test whether the…
A:
Q: A recent report stated that the proportion of teens that vape has decreased from the prior year. The…
A: From the given information we conduct Z test for two proportion.
Q: -0.000 d to three decimal places as needed.) is the conclusion based on the hypothesis test? value…
A: Given P1= x1/n1 =66/323 P2= x2/n2 =16/313
Q: A study was conducted to determine the proportion of people who dream in black and white instead of…
A: Assume that p1, p2 are the population proportion of people who dream in black and white, over the…
Q: A study was conducted to determine the proportion of people who dream in black and white instead of…
A: a. Denote p1, p2 as the true population proportions of people, who dream in black and white over…
Q: Test the claim that the proportion of people who own cats is smaller than 70% at the 0.10…
A: The value of z-test statistic is,
Q: In a fishing lodge brochure, the lodge advertises that 75% of its guests catch northern pike over 20…
A: Given that, In a fishing lodge brochure, the lodge advertises that 75% of its guests catch northern…
Q: A study was conducted to determine the proportion of people who dream in black and white instead of…
A: The random variable X follows binomial distribution. We have to use normal approximation to binomial…
Q: A study was conducted to determine the proportion of people who dream in black and white instead of…
A:
Q: 3. A researcher goes to a local park to see how many people are wearing face masks. She counts 85…
A: Given information- Sample 1 is for women. Sample 2 is for men.
Q: A state-by-state survey found that the proportions of adults who are smokers in state A and state B…
A: Denote p1, p2 as the true population proportions of adult smokers in states A and B, respectively.
Q: Astudy was conduccled to determine the proportion of people who dream in black and white instead of…
A: Given , People over age 55 : Sample size = n1 = 317 Number of people who dream in black and white =…
Q: A study was conducted to determine the proportion of people who dream in black and white instead of…
A: There are two independent samples which are over 55 and under 25. We have to test whether the…
Test the claim that the proportion of men who own cats is significantly different than 45% at the 0.05 significance level.
In a random sample of 120 men, 80 men owned cats.
The P-value of this sample is (to 4 decimals).
Solution:
Let X be number of men owned cats and n be the sample number of men.
From the given information, X=80 and n=120.
Trending now
This is a popular solution!
Step by step
Solved in 5 steps with 5 images
- One survey showed that among 766 randomly selected subjects who completed four years of college, 18.3% smoke and 81.7% do not smoke. Use a 0.01 significance level to test the claim that the rate of smoking among those with four years of college is less than the 27% rate for the general population. . Calculate the P-value. Which of these options is closest to the P-value? A. 0.0005 B. 0.9999 C. 0.5000 D. 0.0001 e. State the technical conclusion. A. Do not reject Upper H 0 B. Reject Upper H 0 f. State the final conclusion. A. The sample data support the claim. B. There is sufficient evidence to warrant rejection of the claim. C. There is not sufficient evidence to warrant rejection of the claim. D. There is not sufficient sample evidence to support the claim. g. Based on the results, does it appear that those who completed four years of college…In a fishing lodge brochure, the lodge advertises that 75% of its guests catch northern pike over 20 pounds. Suppose that last summer 65 out of a random sample of 78 guests did, in fact, catch northern pike weighing over 20 pounds. Does this indicate that the population proportion of guests who catch pike over 20 pounds is different from 75% (either higher or lower)? Use ? = 0.05. -What is the value of the sample test statistic? (Round your answer to two decimal places.) -What is the value of the sample test statistic? (Round your answer to two decimal places.)A study was conducted to determine the proportion of people who dream in black and white instead of color. Among 321 people over the age of 55, 77 dream in black and white, and among 311 people under the age of 25, 13 dream in black and white. Use a 0.01 significance level to test the claim that the proportion of people over 55 who dream in black and white is greater than the proportion for those under 25. Complete parts (a) through (c) below. a. Test the claim using a hypothesis test. Consider the first sample to be the sample of people over the age of 55 and the second sample to be the sample of people under the age of 25. What are the null and alternative hypotheses for the hypothesis test? A. Ho: P1 P2 H₁: P₁ P2 OD. Ho: P1 P2 Н1:01A study was conducted to determine the proportion of people who dream in black and white instead of color. Among 297 people over the age of 55, 75 dream in black and white, and among 310 people under the age of 25, 19 dream in black and white. Use a 0.05 significance level to test the claim that the proportion of people over 55 who dream in black and white is greater than the proportion for those under 25. Complete parts (a) through (c) below. a. Identify the test statistic. z= 6.51 (Round to two decimal places as needed.) Identify the P-value. P-value = 3.770o (Round to three decimal places as needed.) What is the conclusion based on the hypothesis test? The P-value is greater than the significance level of a = 0.05, so fail to reject the null hypothesis. There is insufficient evidence to support the claim that the proportion of people over 55 who dream in black and white is greater than the proportion for those under 25. b. Test the claim by constructing an appropriate confidence…3. A study in Men's Health magazine stated that 14% of men said they used exercise to reduce stress. Use a = 0.10. A random sample of 100 men was selected and 10 said they used exercise. Does the sample support the claim made by the magazine?A study was conducted to determine the proportion of people who dream in black and white instead of color. Among 315 people over the age of 55, 61 dream in black and white, and among 285 people under the age of 25, 12 dream in black and white. Use a 0.01 significance level to test the claim that the proportion of people over 55 who dream in black and white is greater than the proportion for those under 25. Complete parts (a) through (c) below. a. Test the claim using a hypothesis test. Consider the first sample to be the sample of people over the age of 55 and the second sample to be the sample of people under the age of 25. What are the null and alternative hypotheses for the hypothesis test? O A. Ho: P1 = P2 H1: P1 > P2 O B. Ho: P1 # P2 H1: P1 = P2 OC. Ho: P1 = P2 H;:PqA study was conducted to determine the proportion of people who dream in black and white instead of color. Among 323 people over the age of 55, 73 dream in black and white, and among 315 people under the age of 25, 18 dream in black and white. Use a 0.01 significance level to test the claim that the proportion of people over 55 who dream in black and white proportion for those under 25. Complete parts (a) through (c) below. greater than the Identify the test statistic. z= 6.10 (Round to two decimal places as needed.) Identify the P-value. @ 2 P-value=0.000 (Round to three decimal places as needed.) What is the conclusion based on the hypothesis test? View an example Get more help. H₁: P₁ P₂ W S The P-value is less than the significance level of a 0.01, so dream in black and white is greater than the proportion for those under 25. reject b. Test the claim by constructing an appropriate confidence interval. The 98% confidence interval is O L command F10 P H₁: Pg #P₂ L ; Clear all I…Is the proportion of wildfires caused by humans in the south different from the proportion of wildfires caused by humans in the west? 372 of the 563 randomly selected wildfires looked at in the south were caused by humans while 372 of the 521 randomly selected wildfires looked at the west were caused by humans. What can be concluded at the a 0.05 level of significance? a. For this study, we should use Select an answer b. The null and alternative hypotheses would be: Ho: Select an answerv Select an answerv Select an answerv (please enter a decimal) H: Select an answerv Select an answerv Select an answerv (Please enter a decimal) C. The test statistic ?v = (please show your answer to 3 decimal places.) d. The p-value = (Please show your answer to 4 decimal places.) e. The p-value is ? a f. Based on this, we should Select an answerv the null hypothesis. g. Thus, the final conclusion is that ... O The results are statistically insignificant conclude that the population proportion from the…A study was conducted to determine the proportion of people who dream in black and white instead of color. Among 314 people over the age of 55, 73 dream in black and white, and among 291 people under the age of 25, 12 dream in black and white. Use a 0.01 significance level to test the claim that the proportion of people over 55 who dream in black and white is greater than the proportion for those under 25. Complete parts (a) through (c) below. a. Test the claim using a hypothesis test. b. Test the claim by constructing an appropriate confidence interval. The 98% confidence interval isBecause the confidence interval limits v 0, it appears that the two proportions are V Because the confidence interval limits include V values, it appears that the proportion of people over 55 who dream in black and white is V the proportion for those under 25. c. An explanation for the results is that those over the age of 55 grew up exposed to media that was displayed in black and white. Can these results be used to verify that explanation? O A. No. The results speak to a possible difference between the proportions of people over 55 and under 25 who dream in black and white, but the results cannot be used to verify the cause of such a difference. O B. No. The results speak to a possible difference between the proportions of people over 55 and under 25 who dream in black and white, but the results are not statistically significant enough to verify the cause of such a difference. O C. Yes. The results can be used to verify the given explanation because difference in proportions is…A study was conducted to determine the proportion of people who dream in black and white instead of color. Among 303 people over the age of 55, 79 dream in black and white, and among 300 people under the age of 25, 18 dream in black and white. Use a 0.01 significance level to test the claim that the proportion of people over 55 who dream in black and white is greater than the proportion for those under 25. Complete parts (a) through (c) below. a. Test the claim using a hypothesis test. Consider the first sample to be the sample of people over the age of 55 and the second sample to be the sample of people under the age of 25. What are the null and alternative hypotheses for the hypothesis test? O A. Ho: P₁ = P₂ H₁: P₁ P2 O D. Ho: P₁ #P₂ H₁: P₁ = P2 Identify the test statistic. z=0 Z= (Round to two decimal places as needed.) Identify the P-value. P-value= (Round to three decimal places as needed.) What is the conclusion based on the hypothesis test? the significance level of a = 0.01, so…Is the proportion of wildfires caused by humans in the south higher than the proportion of wildfires caused by humans in the west? 380 of the 581 randomly selected wildfires looked at in the south were caused by humans while 318 of the 503 randomly selected wildfires looked at the west were caused by humans. What can be concluded at the a = 0.10 level of significance? a. For this study, we should use Select an answer b. The null and alternative hypotheses would be: Ho: Select an answer v Select an answer Select an answer v (please enter a decimal) Hj: Select an answer Select an answer vSelect an answer v (Please enter a decimal) c. The test statistic ? v (please show your answer to 3 decimal places.) d. The p-value = (Please show your answer to 4 decimal places.) e. The p-value is ? a f. Based on this, we should Select an answer g. Thus, the final conclusion is that ... |the null hypothesis. O The results are statistically significant at a = 0.10, so there is sufficient evidence to…SEE MORE QUESTIONSRecommended textbooks for youMATLAB: An Introduction with ApplicationsStatisticsISBN:9781119256830Author:Amos GilatPublisher:John Wiley & Sons Inc
Probability and Statistics for Engineering and th…StatisticsISBN:9781305251809Author:Jay L. DevorePublisher:Cengage Learning
Statistics for The Behavioral Sciences (MindTap C…StatisticsISBN:9781305504912Author:Frederick J Gravetter, Larry B. WallnauPublisher:Cengage Learning
Elementary Statistics: Picturing the World (7th E…StatisticsISBN:9780134683416Author:Ron Larson, Betsy FarberPublisher:PEARSON
The Basic Practice of StatisticsStatisticsISBN:9781319042578Author:David S. Moore, William I. Notz, Michael A. FlignerPublisher:W. H. Freeman
Introduction to the Practice of StatisticsStatisticsISBN:9781319013387Author:David S. Moore, George P. McCabe, Bruce A. CraigPublisher:W. H. FreemanMATLAB: An Introduction with ApplicationsStatisticsISBN:9781119256830Author:Amos GilatPublisher:John Wiley & Sons IncProbability and Statistics for Engineering and th…StatisticsISBN:9781305251809Author:Jay L. DevorePublisher:Cengage LearningStatistics for The Behavioral Sciences (MindTap C…StatisticsISBN:9781305504912Author:Frederick J Gravetter, Larry B. WallnauPublisher:Cengage LearningElementary Statistics: Picturing the World (7th E…StatisticsISBN:9780134683416Author:Ron Larson, Betsy FarberPublisher:PEARSONThe Basic Practice of StatisticsStatisticsISBN:9781319042578Author:David S. Moore, William I. Notz, Michael A. FlignerPublisher:W. H. FreemanIntroduction to the Practice of StatisticsStatisticsISBN:9781319013387Author:David S. Moore, George P. McCabe, Bruce A. CraigPublisher:W. H. Freeman