n the scale below, fill in 2 appropriate words regarding the strength of evidence to reject the null
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A: Null Hypothesis: H0: p<=0.5 Alternative Hypothesis: H1:p>0.5 Given that x=2873 and n=5041…
Q: when is the significance level determined
A: The significance level defines that the probability of rejecting the null hypothesis when it is…
Q: A study was conducted to determine the proportion of people who dream in black and white instead of…
A: α=0.01 Sample size, n1=323 No. of people dream in black and white, x1=73 Sample size, n2=315 No. of…
Q: A study was conducted to determine the proportion of people who dream in black and white instead of…
A: Claim: The proportion of people over 55 who dream in black and white is greater than the proportion…
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A: Given that Sample size: n =400 Sample proportion: p^=0.12 Population proportion: P=0.20 Level of…
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A: Introduction:Assume that the data are at least approximately normal.The null and alternate…
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 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
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A: The concept of testing hypothesis is one of the method of statistical inference where we take the…
Q: A study was conducted to determine the proportion of people who dream in black and white instead of…
A: The given hypothesis is H0:p1=p2 versus H1:p1>p2.
Q: b. The test statistic [z |(please show your answer to 3 decimal places.) c. The p-value (Please show…
A: Given : x1 = 432x2 = 460n1 = 676n2 = 773 Level of significance = α = 0.05
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A: The t test are used to compare the mean significance between the sample and population. It can…
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Q: The accompanying table contains the data for the amounts (in oz) in cans of a certain soda. The cans…
A: Given information- Median amount = 16 oz Significance level, α = 0.01 Claim: We have to test the…
Q: . Does the analysis provide sufficient evidence at the significance level α = 0.05 to conclude that,…
A: Let μ1−μ2 be the population mean the difference between males and females who plan to retire at the…
Q: as conducted to determine the proportion of people who dream in black and white instead of color.…
A: Sample size n1=297 , n2=311
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A: It is given that x=176, n=267 and P=0.61.
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A: The p-value is less than 0.001. The test statistic is -4.691.
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A: Given n=700 P0=0.55
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A: The hypotheses can be constructed as: H0: p1 = p2 H1: p1 ≠ p2 Given:
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A: Solution: Given information: n= 231 Sample size x= 129 success p^=xn= 129231=0.5584 Sample…
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Q: urses/17998/quizzes/119350/take Question 1 Find the standard deviation. Round the final answer to…
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A: Hi! Thanks for posting the question. Since there are more than one question we will answer first…
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A: The smallest level of significance at which the null hypothesis is rejected is given by the p-value.
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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: o dream in black and white is greater than the proportion for those under 25. Complete parts (a)…
A: We have given that Sample size n1 = 320 , n2= 306 Favorable cases x1= 74 , x2= 15…
Q: α is the observed level of significance whereas the p-value is the preset level of significance.…
A: We have given that, α is the observed level of significance whereas the P- value is the preset level…
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A: Given : p1^ = x1n1 = 389637 = 0.6107 p2^ = x2n2 = 342630 = 0.5429
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Q: A study was conducted to determine the proportion of people who dream in black and white instead of…
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A: It is needed to test whether religious belief and gender are related in their state.
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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…
On the scale below, fill in 2 appropriate words regarding the strength of evidence to reject the null.
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- A marketing agency wanted to determine if a new commercial changed people's opinion about a company. They recruited n=30 participants to watch the commercial. First, everyone was givien a survey to determine their attitudes toward the company. Then, everyone watched the new commercial. Finally, they were given the same survey again and asked about their attitudes toward the comapny after seeing the commercial. The agency wanted to see if attitudes were changed by the commercial. What statistical test should they use?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 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…
- A 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…The Bureau of Labor Statistics reports that the official unemployment rate for Black people was 10.4% and 4.7% for White people in February 2015. Select all correct answers for this question. O The samples of white and black people are independent. The explanatory variable is the unemployment rate. The response variable is the unemployment rate. The response variable is race.A sociologist claims that the students’ college GPA’s in unrelated to their families’ incomes. For a random sample of 20 students the coefficient of correlation was computed as 0.40. Using the 0.01 significance level, do the formal hypothesis test.Remember to show your steps (including all relevant information) show the steps on how to solve it
- A study was conducted to determine the proportion of people who dream in black and white instead of color. Among 318 people over the age of 55, 77 dream in black and white, and among 298 people under the age of 25, 16 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. H4: P1 P2 H: P1 #P2 O D. Ho: P1 SP2 H1: P1#P2 O E. Ho: P1 P2 H1: P1 = P2 O F. Ho: P1 =P2 H1: P1 #P2 Identify the test statistic. z= 6.52 (Round to two decimal places as needed.) Identify the P-value. P-value = 0.000 (Round to three decimal places as needed.) What is the conclusion based on the hypothesis test? The P-value is less than the significance level of a = 0.05, so reject the null hypothesis. There is sufficient evidence to support the claim that the proportion of people over 55 who dream in black and white is greater than the proportion…Burger King has recently added new menu items in the last few years. Q. How are you going to decide which menu items are potential winners? What statistical tests or inferential statistics can you conduct?The accompanying table contains the data for the amounts (in oz) in cans of a certain soda. The cans are labeled to indicate that the contents are 16 oz of soda. Use the sign test and a 0.01 significance level to test the claim that cans of this soda are filled so that the median amount is 16 oz. If the median is not 16 oz, are consumers being cheated? Click the icon to view the data. What are the null and alternative hypotheses? O A. Ho: Median volume ≤ 16 oz H₁: Median volume = 16 oz C. Ho: Median volume = 16 oz H₁: Median volume # 16 oz Find the test statistic. Test statistic (Round to three decimal places as needed.) = More Info 15.6 16.0 16.1 16.1 407 15.7 (…) 16.1 15.9 19:3 15.8 16.5 15.8 15.7 15.9 OB. Ho: Median volume ≤ 16 oz H₁: Median volume > 16 oz O D. Ho: Median volume = 16 oz H₁: Median volume < 16 oz Volume (in ounces) 15.7 15.5 15.7 15.7 15.8 420 15.9 103 16.3 15.7 15.7 16.1 16.3 15.8 15.7 15.6 15.5 15.6 15.5 20 16.0 400 15.8 19:0 15.6 15.6 15.5 16.4 15.9 D - X
- Support for the U.S. death penalty for convicted murderers was 63% in 2014 (Gallup poll results 2018). In a recent survey of 150 randomly selected U.S. adults, 75 said they were in favor of the death penalty for those convicted of murder. Does this sample appear to come from a population with a lower proportion in favor of the death penalty? d) Say that a = 0.05, what does this mean. Explain in the context of the problem. e) What would it mean to make a type II error? Explain in the context of this problem. f) Use a 0.05 significance level to test the claim. State your conclusion AND interpret your results.A 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 P2A study was conducted to determine the proportion of people who dream in black and white instead of color. Among 294 people over the age of 55, 63 dream in black and white, and among 300 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. 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 D. Ho: P₁ P2 H₁: P₁ P2 OB. Ho: P1 P2 H₁: P₁ P2 O E. Ho: P1 H₁: P₁ P2 P2 O C. Ho: P₁ P2 H₁: P₁ = P2 OF. Ho: P₁ P2 H₁: P₁ P2
