individuals saw a new television commercial about the product. The purchase potential ratings were based on a 0 to 10 higher values indicating a higher purchase potential. The null hypothesis stated that the mean rating "after" would be equal to the mean rating "before." Rejection of this hypothesis would show that the commercial improved the mean pu potential rating. Use a = .05 and the following data to test the hypothesis and comment on the value of the commerc Purchase Rating Purchase Rating Individual After Before Individual After Before 1 3 6. 4 6. 9 7 3 8 8 6 4 5 4 8

individuals saw a new television commercial about the product. The purchase potential ratings were based on a 0 to 10 higher values indicating a higher purchase potential. The null hypothesis stated that the mean rating "after" would be equal to the mean rating "before." Rejection of this hypothesis would show that the commercial improved the mean pu potential rating. Use a = .05 and the following data to test the hypothesis and comment on the value of the commerc Purchase Rating Purchase Rating Individual After Before Individual After Before 1 3 6. 4 6. 9 7 3 8 8 6 4 5 4 8

Name: A market research firm used a sample of individuals to rate the purch
Uploaded: 2024-03-20T07:07:12.000Z
Channel: Bartleby
Description: A market research firm used a sample of individuals to rate the purchase potential of a particular product before and after theindividuals saw a new television commercial about the product. The purchase potential ratings were based on a 0 to 10 scal

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

See similar textbooks

Similar questions

Nikki wishes to test the hypothesis that bird feeders can affect the mean mass of birds in the area surrounding the feeder. She weighs several of the hummingbirds near several feeders. She obtains 4.2, 3.9, 3.6, 3.5, 3.9, 3.8, 3.8, 4.1, 3.9, 3.8, 3.2, and 3.4 as masses in grams for the birds. The student's hypotheses are Ho: µ = 3.65 g and H: µ> 3.65 g. Use technology to calculate the P-value, then determine whether the data provide sufficient evidence to conclude that the mean mass of the birds in the area surrounding the feeder is greater than the mean mass of the general population. Test at the 5% significance level and assume that the population standard deviation is 0.35 g. Also, assess the strength of the evidence against Ho- O A. P= 0.255; since P> 0.05, reject the null hypothesis. The data do provide sufficient evidence to conclude that the mean mass of the birds in the area is greater than the mean mass of the general population. The evidence against the null hypothesis is…
Please find question details in the attached picture.
Suppose the null hypothesis is rejected.State the conclusion based on the results of the test. Three years ago, the mean price of a single-family home was $243,799. A real estate broker believes that the mean price has increased since then. Which of the following is the correct conclusion? A. There is sufficient evidence to conclude that the mean price of a single-family home has not changed. B.There is not sufficient evidence to conclude that the mean price of a single-family home has not changed. C. There is sufficient evidence to conclude that the mean price of a single-family home has increased. D. There is not sufficient evidence to conclude that the mean price of a single-family home has increased.
The Economist collects data each year on the price of a Big Mac in various countries around the world. The price of a Big Mac for a sample of McDonalds restaurants in Europe in May 2009 resulted in the following Big Mac prices (after conversion to U.S. dollars):3.80 5.89 4.92 3.88 2.65 5.57 6.39 3.24 The mean price of a Big Mac in the U.S. in May 2009 was $3.57. For purposes of this exercise, assume it is reasonable to regard the sample as representative of European McDonalds restaurants. Does the sample provide convincing evidence that the mean May 2009 price of a Big Mac in Europe is greater than the reported U.S. price? Test the relevant hypotheses using a = .05. Assume a normal distribution of the data. s= Ho: 4 (Put in the correct symbol and value) H: uSelect an answer V a = P-value = Based on the above we choose to Select an answer
A research article stated that there was a mean difference in depressive symptoms between male and female clients. The significance level for this study was set at .05. The p value obtained was .075. What does this mean? Explain.
Suppose the null hypothesis is rejected. State the conclusion based on the results of the test. Three years ago, the mean price of a single-family home was $243,704. A real estate broker believes that the mean price has decreased since then. Which of the following is the correct conclusion? O A. There is not sufficient evidence to conclude that the mean price of a single-family home has not changed. B. There is sufficient evidence to conclude that the mean price of a single-family home has decreased. C. There is sufficient evidence to conclude that the mean price of a single-family home has not changed. D. There is not sufficient evidence to conclude that the mean price of a single-family home has decreased.
The researchers reported: Consumer masculinity was strongly correlated with appearance-related self-esteem (r = 0.40, p < .001) and media influence (r = 0.62, p < .001), but not correlated with overall self-esteem (r = 0.08, p > .05). a. State the correlations that were significant. b. Which correlation was the strongest?
PLEASE PROVIDE SOLUTION ASAP AND SELECT CORRECT OPTION
PLEASE ANSWER ASAP. A market research firm used a sample of individuals to rate the purchase potential of a particular product before and after the individuals saw a new television commercial about the product. The purchase potential ratings were based on a 0 to 10 scale, with higher values indicating a higher purchase potential. The null hypothesis stated that the mean rating "after" would be less than or equal to the mean rating "before." Rejection of this hypothesis would show that the commercial improved the mean purchase potential rating. Use a=0.05 and the following data to test the hypothesis and comment on the value of the commercial. Purchase Rating Purchase Rating Individual After Before Individual After Before 1 6 5 5 3 4 2 6 4 6 9 7 3 8 8 7 7 5 4 4 4 8 6 7 What are the hypotheses? Compute d (to 3 decimals) Compute sd (to 1 decimal). What is the p-value? What is your decision?
At the .01 significance level, does the data below show significant correlation? x y5 306 26.377 17.848 24.019 19.9810 20.8511 17.9212 18.5913 18.0614 18.1315 20.6Yes, significant correlationNo
Which of the following z-score values represents the location farthest from the mean? Question 21 options: z = +0.50 z = +1.00 Z=-1.00 z = -2.00
The Economist collects data each year on the price of a Big Mac in various countries around the world. The price of a Big Mac for a sample of McDonalds restaurants in Europe in May 2009 resulted in the following Big Mac prices (after conversion to U.S. dollars): 3.80 5.89 4.92 3.88 2.65 5.57 6.39 3.24 The mean price of a Big Mac in the U.S. in May 2009 was $3.57. For purposes of this exercise, assume it is reasonable to regard the sample as representative of European McDonalds restaurants. Does the sample provide convincing evidence that the mean May 2009 price of a Big Mac in Europe is greater than the reported U.S. price? Test the relevant hypotheses using α = .05. Assume a normal distribution of the data.x¯x¯=; ss=H0H0: μ=μ=HaHa: μμ (Put in the correct symbol and value)α=α=P-value =