An ad for an artificial turf company claims that 93% of their customers are 'extremely satisfied' with their service. A group of recent customers believes that figure is too high, and wish to conduct a hypothesis test at the a = 0.01 level of significance to determine if they are right. (Round your results to four decimal places) Which would be correct hypotheses for this test? O Ho:p 0.93, H:p= 0.93 Ho:p = 0.93, H1:p# 0.93 O Ho:p = 0.93, H1:p < 0.93 O Ho:p = 0.93, H1:p > 0.93 Ho:p < 0.93, Hị:p= 0.93 %3D A random sample of 81 customers resulted in 75 that said they were 'extremely satisfied' with their service. Find the test statistic (2 decmials): Give the P-value (4 decimals if less than 0.001 give answer as 0): Which is the correct result: Reject the Null Hypothesis Do not Reject the Null Hypothesis Which would be the appropriate conclusion? There is significant evidence to suggest that the actual proportion of satisfied customers is less than 93% O There is not significant evidence to suggest that the actual proportion of satisfied customers is less than 93%

An ad for an artificial turf company claims that 93% of their customers are 'extremely satisfied' with their service. A group of recent customers believes that figure is too high, and wish to conduct a hypothesis test at the a = 0.01 level of significance to determine if they are right. (Round your results to four decimal places) Which would be correct hypotheses for this test? O Ho:p 0.93, H:p= 0.93 Ho:p = 0.93, H1:p# 0.93 O Ho:p = 0.93, H1:p < 0.93 O Ho:p = 0.93, H1:p > 0.93 Ho:p < 0.93, Hị:p= 0.93 %3D A random sample of 81 customers resulted in 75 that said they were 'extremely satisfied' with their service. Find the test statistic (2 decmials): Give the P-value (4 decimals if less than 0.001 give answer as 0): Which is the correct result: Reject the Null Hypothesis Do not Reject the Null Hypothesis Which would be the appropriate conclusion? There is significant evidence to suggest that the actual proportion of satisfied customers is less than 93% O There is not significant evidence to suggest that the actual proportion of satisfied customers is less than 93%

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Description: An ad for an artificial turf company claims that 93% of their customers are 'extremely satisfied' with theirservice. A group of recent customers believes that figure is too high, and wish to conduct a hypothesis testat the a = 0.01 level of signific

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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You may need to use the appropriate technology to answer this question. Consider the following hypothesis test. H0: ? = 100 Ha: ? ≠ 100 A sample of 65 is used. Identify the p-value and state your conclusion for each of the following sample results. Use ? = 0.05. (a) x = 103 and s = 11.6 Find the value of the test statistic. (Round your answer to three decimal places.) Find the p-value. (Round your answer to four decimal places.) p-value = State your conclusion. Reject H0. There is sufficient evidence to conclude that ? ≠ 100.Do not reject H0. There is insufficient evidence to conclude that ? ≠ 100. Do not reject H0. There is sufficient evidence to conclude that ? ≠ 100.Reject H0. There is insufficient evidence to conclude that ? ≠ 100. (b) x = 95.5 and s = 11.0 Find the value of the test statistic. (Round your answer to three decimal places.) Find the p-value. (Round your answer to four decimal places.) p-value = State your conclusion. Reject H0. There is…
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P-value=enter your response here (Round to three decimal places as needed.) Which of the following is the correct conclusion for the hypothesis test? A. Reject H0; the data provide sufficient evidence to conclude that x is useful for predicting y. B. Do not reject H0; the data do not provide sufficient evidence to conclude that x is useful for predicting y. C. Reject H0; the data do not provide sufficient evidence to conclude that x is useful for predicting y. D. Do not reject H0; the data provide sufficient evidence to conclude that x is useful for predicting y. b. Find a 90% confidence interval for the slope of the population regression line. The 90% confidence interval for β1 is from to (Round to three decimal places as needed.)
You may need to use the appropriate technology to answer this question. Consider the following hypothesis test. H0: ? = 100 Ha: ? ≠ 100 A sample of 65 is used. Identify the p-value and state your conclusion for each of the following sample results. Use ? = 0.05. (a) x = 103 and s = 11.4 Find the value of the test statistic. (Round your answer to three decimal places.) Find the p-value. (Round your answer to four decimal places.) p-value = State your conclusion. a. Reject H0. There is insufficient evidence to conclude that ? ≠ 100. b. Do not reject H0. There is insufficient evidence to conclude that ? ≠ 100. c. Reject H0. There is sufficient evidence to conclude that ? ≠ 100. d. Do not reject H0. There is sufficient evidence to conclude that ? ≠ 100. (b) x = 96.5 and s = 11.0 Find the value of the test statistic. (Round your answer to three decimal places.) Find the p-value. (Round your answer to four decimal places.) p-value = State your conclusion. a. Reject…
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Who will you vote for? A simple random sample of 1500 voters were surveyed and asked whether they were planning to vote for the incumbent mayor for re-election. Seven hundred ninety-eight of them replied that they were planning to vote for the mayor. The mayor claims that more than half of all voters are planning to vote for her. To test this claim, a test of the hypotheses Ho: p = 0.5 versus H₁: p > 0.5 is performed. a. Show that the P-value is 0.007. b. The P-value is very small, so Ho is rejected. A pollster claims that because the P-value is very small, we can be fairly certain that the population proportion p is greater than 0.5, but we cannot be certain that it is a lot greater. Is this a correct interpretation of the P-value?
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Suppose are running a study/poll about the proportion of men over 50 who regularly have their prostate examined. You randomly sample 81 people and find that 71 of them match the condition you are testing.Suppose you are have the following null and alternative hypotheses for a test you are running:H0:p=0.87Ha:p≠0.87Calculate the test statistic, rounded to 3 decimal places.
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