K An experiment was conducted to determine whether giving

Last updated: 6/7/2023

K 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 UA Mo H H2 H H H OC Ho H H H H H Round to two decimal places as needed The P value is Round to three decimal places as needed The test statistic t is State the conclusion for the test SCIEN b Construct the confidence interval suitable for testing the claim in part a 0 H1 H 0 Round to two decimal places as needed Does the confidence interval support the conclusion found with the hypothesis test because the confidence interval contains No candy Two candies UD Mo H H2 H H H 2 OD Ho H H H H H H H n 22 X 18 84 S 1 53 22 21 15 2 41 OA Fail to reject the null hypothesis There is sufficient evidence to support the claim that giving candy does result in greater tips OB Reject the null hypothesis There is not sufficient evidence to support the claim that giving candy does result in greater tips OC Reject the null hypothesis There is sufficient evidence to support the claim that giving candy does result in greater tips D Fail to reject the null hypothesis There is not sufficient evidence to support the claim that giving candy does result in greater tips