R1 In an experiment to test a memory supplement, 200 subjects wereassigned randomly to take the supplement or a placebo (100 in eachgroup). The memory score of each group was then measured. Can yousupport the claim that there is a difference in the mean memoryscores between the supplement and placebo groups? Conduct thetest with a significance level of 10%.Results and p-values many test runs are shown below.Supplement Placebosample mean6.615.23sample std devsample size5.034.10100100Reported p-valuesleft tailright tailtwo tailF-test for variances0.0330.016pooled variance t-testunequal variance t-testmatched pairs t-test0.0320.9840.0380.9810.0190.0480.9760.024 Conclusion: Select all valid conclusions (more that one could be valid)O There is insufficient evidence to conclude that there is a significantdifference in mean memory scores between the supplement and placebogroups.O This supplement improved memory scores because it contained a hormonethat stimulated brain function.There is insufficient evidence to conclude that there is no significantdifference in mean memory scores between the supplement and placebogroups.O There is no significant difference in mean memory scores between thesupplement and placebo groups.O The mean memory score for the supplement group is higher than the meanfor the placebo group.O There is a significant difference in mean memory scores between thesupplement and placebo groups.

Two sample t test: Two sample t test is used to determine the significance difference between two…

In an experiment to test a memory supplement, 200 subjects were assigned randomly to take the supplement or a placebo (100 in each group). The memory score of each group was then measured. Can you support the claim that there is a difference in the mean memory scores between the supplement and placebo groups? Conduct the test with a significance level of 10%. Results and p-values many test runs are shown below. Supplement Placebo 5.23 sample mean sample std dev sample size 6.61 5.03 4.10 100 100 Reported p-values two tail left tail right tail F-test for variances 0.033 pooled variance t-test 0.032 0.984 0.016 unequal variance t-test matched pairs t-test 0.038 0.981 0.019 0.048 0.976 0.024

In an experiment to test a memory supplement, 200 subjects were assigned randomly to take the supplement or a placebo (100 in each group). The memory score of each group was then measured. Can you support the claim that there is a difference in the mean memory scores between the supplement and placebo groups? Conduct the test with a significance level of 10%. Results and p-values many test runs are shown below. Supplement Placebo 5.23 sample mean sample std dev sample size 6.61 5.03 4.10 100 100 Reported p-values two tail left tail right tail F-test for variances 0.033 pooled variance t-test 0.032 0.984 0.016 unequal variance t-test matched pairs t-test 0.038 0.981 0.019 0.048 0.976 0.024

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018

18th Edition

ISBN:9780079039897

Author:Carter

Publisher:Carter

Chapter10: Statistics

Section: Chapter Questions

Problem 13PT

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