(b) What is the standard deviation of change in the control group? (Round your answer to three decimal places.) 3.303 X (c) What test can be performed to compare the mean change in the two groups at 18 months? (You can use the Distribution Calculators page in SALT to check conditions.) O We should use a one sample z test. O We should use a two sample t test for independent samples with unequal variances. O We should use a one sample t test. We should use a two sample t test for independent samples with equal variances. O We should use a paired t test. (d) Implement the test identified in part (c), and report two-sided p-value. State the null and alternative hypotheses. (Enter != for as needed.) Ho: H₁: What is the test statistic? (Round your answer to two decimal places.) Use technology to find the p-value. (Round your answer to four decimal places.) p-value=
(b) What is the standard deviation of change in the control group? (Round your answer to three decimal places.) 3.303 X (c) What test can be performed to compare the mean change in the two groups at 18 months? (You can use the Distribution Calculators page in SALT to check conditions.) O We should use a one sample z test. O We should use a two sample t test for independent samples with unequal variances. O We should use a one sample t test. We should use a two sample t test for independent samples with equal variances. O We should use a paired t test. (d) Implement the test identified in part (c), and report two-sided p-value. State the null and alternative hypotheses. (Enter != for as needed.) Ho: H₁: What is the test statistic? (Round your answer to two decimal places.) Use technology to find the p-value. (Round your answer to four decimal places.) p-value=
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section: Chapter Questions
Problem 22SGR
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