Test the claim that the proportion of people who own cats is smaller than 60% at the 0.025 significance level. The null and alternative hypotheses would be? The test is? Based on a sample of 800 people, 52% owned cats. The P-value is?
Q: Use the results from a survey of a simple random sample of 1256 adults. Among the 1256 respondents,…
A: The sample size is n=1256
Q: Suppose that you conduct a hypothesis test for a proportion using a sample size of n=50 and you…
A: Answer: As sample increases the p-value decreases.
Q: Assume that you plan to use a significance level of a =0.05 to test the claim that P1 P2. Use the…
A: We have to find out given z value..
Q: In 2011, a U.S. Census report determined that 60% of college students are working students. A…
A: a. To find whether the proportion of pf working students has changed, the null and alternative…
Q: Suppose that according to your company, the average salary for middle managers was 105,000. You…
A: (a) Determine the type of test must be run. The type of test that must be run is hypothesis…
Q: Use the sign test to test the indicated claim. A researcher wishes to test whether a particular diet…
A: Given Information: Sample size (n) = 24 After one month on diet, for 18 people the second blood…
Q: Assume 4812 people are randomly selected. Approximately 59.4% of them have added bleach to their…
A: p = 0.60 , n = 4812
Q: Perform the following hypothesis test of a proportion: HO: p = 0.125 HA: p 0.125 The sample…
A:
Q: Researchers report a 95% Cl = 1.56 to 5.77. What would the decision be for a hypothesis test if the…
A: (1) That is, the population mean equals 0. That is, the population mean do not equals 0.…
Q: Suppose that in a random selection of 100 colored candies, 21% of them are blue. The candy company…
A: Given, Sample size = 100 Sample proportion = 0.21 The null and alternative hypothesis is:
Q: A study was conducted to determine the proportion of people who dream in black and white instead of…
A: sample size of the first sample with people over the age of 55: n1=310sample size of the second…
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: A hypothesis test is conducted with a significance level of 10%. The alternative hypothesis states…
A: HypothesisThe P-value=0.27
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 food services manager wants to know if there is a relationship between gender (male or female) and…
A: 1. It is needed to test, whether the there is a relationship between gender (male or female) and…
Q: An online poll asked: "Do you believe the Loch Ness monster exists?" Among 20,798 responses, 65%…
A: Denote p as the true proportion of the respondents who said that they believed in the existence of…
Q: You are conducting a study to see if the probability of a true negative on a test for a certain…
A: From the provided information, level of significance (α) = 0.10 The hypotheses are as follow: H0: p…
Q: In studying the responses to questions on a multiple-choice test, the following sample data are…
A: Given that
Q: Suppose that in a random selection of 100 colored candies, 23% of them are blue. The candy company…
A: Solution
Q: An online poll asked: "Do you believe the Loch Ness monster exists?" Among 20,438 responses,61%…
A: Denote p as the true proportion of the respondents who said that they believed in the existence of…
Q: Do the results support the belief that 50.9% of newborn babies are boys?
A: Given : n=864 , X=433 , p0=0.509 , α=0.05 The estimate of the sample proportion is ,…
Q: Suppose that in a random selection of 100 colored candies, 23% of them are blue. The candy company…
A: Given : Sample size (n) = 100 Sample proportion (p^) = 23% = 0.23 α = 0.01
Q: You want to see if it your choice of lane makes a difference in how many cars you have to deal with.…
A: We want to test the goodness of fit test by using the chi square Hypothesis Ho: there are no…
Q: A study was conducted to determine the proportion of people who dream in black and white instead of…
A:
Q: Assume 4812 people are randomly selected. Approximately 59.4% of them have added bleach to their…
A: The null and alternative hypothesis is; The given level of significance is; α = 0.10 Given to us…
Q: If you use a 0.05 level of significance in a (two-tail) hypothesis test, what is your decision rule…
A:
Q: E Click on the icon to view the table of arrival delay times. What are the null and alternative…
A: Here the data is not given so not possible to find test statistics from given data only first…
Q: An online poll asked: "Do you believe the Loch Ness monster exists?" Among 20,833 responses,…
A: Given Pcap=0.67 P=0.50 n=20833
Q: Test at the 4% significance level if the proportion of men who have a tattoo is or is not close to…
A: Here use single proportion z test
Q: Write the null and alternative hypotheses you would use to test the following situation. A weight…
A: Null and alternative hypotheses: The hypothesis which is tentatively fixed up under and tested for…
Q: According to a recent report, 47% of college student internships are unpaid. A recent survey of 80…
A: given data n = 80 x = 45 claim : p ≠ 0.47
Q: I believe that the homeless population in Manchester, NH is .20 of the total Manchester, NH…
A: Given Information: Hypothesized value (p0) = 0.20 Sample size (n) = 300 Out of which X = 67 people…
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: -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: Suppose that in a random selection of 100 colored candies 20% of them are blue. I candy company…
A:
Q: A study was conducted to determine the proportion of people who dream in black and white instead of…
A: age over 55 : n1 = 323x1 = 73age under 25 : n2 = 315x2 = 18α = 0.01claim : p1 > p2
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: In 2011, a U.S. Census report determined that 70% of college students are working students. A…
A: We have given that a U.S. Census report determined that 70% of college students are working…
Q: in october 1947 the gallup organization surveyed 1000 adult americans and asked are you a total…
A: We have given thatn1 = 1000 , x1 = 378n2 = 1000 , x2 = 333Significance level (α) = 0.05Now,p̂1 =…
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: 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: Assuming the null is true, what is the mean of the population? Assuming the null is true, how far,…
A: It is generally accepted that the 40% of the consumer use Apple products, hence mean population…
Q: One survey showed that among 766 randomly selected subjects who completed four years of college,…
A: Denote p as the true population proportion of smokers in the college.
Q: use a hypothesis test to determine if the proportions are statistically different. A recent survey…
A:
Q: A study was conducted to determine the proportion of people who dream in black and white instead of…
A: The question is about hypo. testing Given : No. of people over age 55 under study ( n1 ) = 321 No.…
Test the claim that the proportion of people who own cats is smaller than 60% at the 0.025 significance level.
The null and alternative hypotheses would be?
The test is?
Based on a sample of 800 people, 52% owned cats. The P-value is?
![](/static/compass_v2/shared-icons/check-mark.png)
Trending now
This is a popular solution!
Step by step
Solved in 2 steps with 2 images
![Blurred answer](/static/compass_v2/solution-images/blurred-answer.jpg)
- A 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…Use the sample data below to test the hypotheses where p is the population proportion of yes responses for population i. Using a .05 level of significanceChoose the correct answer.If the P-value of a test of significance is 0.999 then:A. the null hypothesis should be rejected.B. the null hypothesis should not be rejected.C. the alternative hypothesis provides a plausible explanation of the data.D. Both A and C are true.
- Perform the following hypothesis test of a proportion: HO: p = 0.33 HA: p 0.33 The sample proportion is 0.31 based on a sample size of 100. Use a 10% significance level. What is the value of the test statistic? (Give your answer rounded to 2 decimals) (Be careful to make sure your + or - sign is correct)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 isSuppose your psychic friend correctly identified more than 25% of the cards. a. A hypothesis test gave a P-value of 0.014. What do you conclude? b. What would you conclude if the P-value had been 0.245?
- Because 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…A study was conducted to determine the proportion of people who dream in black and white instead of color. Among 320 people over the age of 55, 72 dream in black and white, and among 313 people under the age of 25, 15 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. H0: p1=p2 H1: p1≠p2 B. H0: p1=p2 H1: p1>p2 C. H0: p1≥p2 H1: p1≠p2 D. H0: p1≠p2 H1: p1=p2 E. H0: p1≤p2 H1: p1≠p2 F. H0: p1=p2 H1:p1<p2 Identify the test statistic. z=_____ (Round to…
- If a hypothesis test were conducted using a 5% level of significance, for which of the following p-values would the null hypothesis be rejected? A. 0.0367 B. 0.0501 C. 0.100 D. 0.299A study was conducted to determine the proportion of people who dream in black and white instead of color. Among 295 people over the age of 55, 64 dream in black and white, and among 312 people under the age of 25, 13 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. 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 O E. Ho: P₁ SP₂ H₁: P₁ P2 OC. Ho: P₁ P2 H₁: P₁ P2 OF. Ho: P₁ H₁: P₁ P₂ P2Results from a civil servant exam are shown in the table to the right. Is there sufficient evidence to support the claim that the results from the test arediscriminatory? Use a 0.01 significance level. Passed Failed White candidates 17 14 Minority candidates 9 29 If: H0: White and minority candidates have the same chance of passing the test. H1: White and minority candidates do not have the same chance of passing the test. answer the following: **1. Determine the test statistic. x2 = ____ **2. Determine the P-value of the test statistic. p= ____
![MATLAB: An Introduction with Applications](https://www.bartleby.com/isbn_cover_images/9781119256830/9781119256830_smallCoverImage.gif)
![Probability and Statistics for Engineering and th…](https://www.bartleby.com/isbn_cover_images/9781305251809/9781305251809_smallCoverImage.gif)
![Statistics for The Behavioral Sciences (MindTap C…](https://www.bartleby.com/isbn_cover_images/9781305504912/9781305504912_smallCoverImage.gif)
![Elementary Statistics: Picturing the World (7th E…](https://www.bartleby.com/isbn_cover_images/9780134683416/9780134683416_smallCoverImage.gif)
![The Basic Practice of Statistics](https://www.bartleby.com/isbn_cover_images/9781319042578/9781319042578_smallCoverImage.gif)
![Introduction to the Practice of Statistics](https://www.bartleby.com/isbn_cover_images/9781319013387/9781319013387_smallCoverImage.gif)
![MATLAB: An Introduction with Applications](https://www.bartleby.com/isbn_cover_images/9781119256830/9781119256830_smallCoverImage.gif)
![Probability and Statistics for Engineering and th…](https://www.bartleby.com/isbn_cover_images/9781305251809/9781305251809_smallCoverImage.gif)
![Statistics for The Behavioral Sciences (MindTap C…](https://www.bartleby.com/isbn_cover_images/9781305504912/9781305504912_smallCoverImage.gif)
![Elementary Statistics: Picturing the World (7th E…](https://www.bartleby.com/isbn_cover_images/9780134683416/9780134683416_smallCoverImage.gif)
![The Basic Practice of Statistics](https://www.bartleby.com/isbn_cover_images/9781319042578/9781319042578_smallCoverImage.gif)
![Introduction to the Practice of Statistics](https://www.bartleby.com/isbn_cover_images/9781319013387/9781319013387_smallCoverImage.gif)