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An experiment was conducted to determine whether giving candy to dining parties resulted in greater tips. The mean tip percentages and standard deviations are given in the accompanying table along with the sample sizes. Assume that the two samples are independent simple random samples selected from normally distributed populations, and do not assume that the population standard deviations are equal. Complete parts (a) and (b). No candy Hi 29 19.22 1.36 Two candies #2 29 21.72 2.57 a. Use a 0.05 significance level to test the claim that giving candy does result in greater tips. What are the null and alternative hypotheses? O A. Ho: H1 =H2 H1: H1> H2 O B. Ho: H1 * H2 O C. Hg: H1 = H2 H1: H1

An experiment was conducted to determine whether giving candy to dining parties resulted in greater tips. The mean tip percentages and standard deviations are given in the accompanying table along with the sample sizes. Assume that the two samples are independent simple random samples selected from normally distributed populations, and do not assume that the population standard deviations are equal. Complete parts (a) and (b). No candy Hi 29 19.22 1.36 Two candies #2 29 21.72 2.57 a. Use a 0.05 significance level to test the claim that giving candy does result in greater tips. What are the null and alternative hypotheses? O A. Ho: H1 =H2 H1: H1> H2 O B. Ho: H1 * H2 O C. Hg: H1 = H2 H1: H1

MATLAB: An Introduction with Applications
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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also the z test, p value, confidence interval and conclusion

An experiment was conducted to determine whether giving candy to dining parties resulted in greater tips. The mean tip percentages and standard deviations are given in the accompanying table along with the sample sizes. Assume that the two samples are independent simple random samples selected from normally distributed populations, and do not assume that the population standard deviations are equal. Complete parts (a) and (b). No candy 29 19.22 1.36 Two candies H2 29 21.72 2.57 ... a. Use a 0.05 significance level to test the claim that giving candy does result in greater tips. What are the null and alternative hypotheses? O A. Hg: H1 = H2 H1: H1 > H2 O B. Ho: H1 #H2 O C. Ho: H1 = H2 H1: H1<H2 D. Ho: H1 =H2 H1: H1 # H2
Transcribed Image Text:An experiment was conducted to determine whether giving candy to dining parties resulted in greater tips. The mean tip percentages and standard deviations are given in the accompanying table along with the sample sizes. Assume that the two samples are independent simple random samples selected from normally distributed populations, and do not assume that the population standard deviations are equal. Complete parts (a) and (b). No candy 29 19.22 1.36 Two candies H2 29 21.72 2.57 ... a. Use a 0.05 significance level to test the claim that giving candy does result in greater tips. What are the null and alternative hypotheses? O A. Hg: H1 = H2 H1: H1 > H2 O B. Ho: H1 #H2 O C. Ho: H1 = H2 H1: H1<H2 D. Ho: H1 =H2 H1: H1 # H2
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