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Español Medical researchers interested in determining the relative effectiveness of two different drug treatments on people with a chronic mental illness established two independent test groups. The first group consisted of 8 people with the illness, and the second group consisted of 15 people with the illness. The first group received treatment 1 and had a mean time until remission of 162 days, with a standard deviation of 7 days. The second group received treatment 2 and had a mean time until remission of 171 days, with a standard deviation of 6 days. Assume that the populations of times until remission for each of the two treatments are normally distributed with equal variance. Can we conclude, at the 0.01 level of significance, that the mean number of days before remission after treatment 1, H, differs from the mean number of days before remission after treatment 2, 4? Perform a two-tailed test. Then complete the parts below. Carry your intermediate computations to three or more decimal places and round your answers as specified in the table. (If necessary, consult a list of formulas.) (a) State the null hypothesis Ho and the alternative hypothesis H1. H, :0 H, :0 (b) Determine the type of test statistic to use. (Choose one) ▼ OSO O20 (c) Find the value of the test statistic. (Round to three or more decimal places.) ? (d) Find the two critical values at the 0.01 level of significance. (Round to three or more decimal places.) Dand O (e) Can we conclude that the mean number of days before remission after treatment 1 differs from the mean number of days before remission after treatment 2? Ix 4 ? 3 x

Español Medical researchers interested in determining the relative effectiveness of two different drug treatments on people with a chronic mental illness established two independent test groups. The first group consisted of 8 people with the illness, and the second group consisted of 15 people with the illness. The first group received treatment 1 and had a mean time until remission of 162 days, with a standard deviation of 7 days. The second group received treatment 2 and had a mean time until remission of 171 days, with a standard deviation of 6 days. Assume that the populations of times until remission for each of the two treatments are normally distributed with equal variance. Can we conclude, at the 0.01 level of significance, that the mean number of days before remission after treatment 1, H, differs from the mean number of days before remission after treatment 2, 4? Perform a two-tailed test. Then complete the parts below. Carry your intermediate computations to three or more decimal places and round your answers as specified in the table. (If necessary, consult a list of formulas.) (a) State the null hypothesis Ho and the alternative hypothesis H1. H, :0 H, :0 (b) Determine the type of test statistic to use. (Choose one) ▼ OSO O20 (c) Find the value of the test statistic. (Round to three or more decimal places.) ? (d) Find the two critical values at the 0.01 level of significance. (Round to three or more decimal places.) Dand O (e) Can we conclude that the mean number of days before remission after treatment 1 differs from the mean number of days before remission after treatment 2? Ix 4 ? 3 x

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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i need help with all of them but especially d and e

O BUSAD265 Ch11 Hyp x A ALEKS - Kierra Alford x b Answered: Susan has x E T-test for two Means X P Order 356230645 6 Students Home O Inclusive Access - Re x + A www-awu.aleks.com/alekscgi/x/Isl.exe/1o_u-IgNsIkr7j8P3jH-lv-Y-mBdRDk1FzbOsPOIMQwqFYZIN5rXLxPuxnZq4jpYsPJ_OS5M1twf2Ei_4kozoqYNMJlb13a8UsVom. Update : O CONFIDENCE INTERVALS AND HYPOTHESIS TESTING OO OD D Kierra v Hypothesis test for the difference of population means: t test fo... Español Medical researchers interested in determining the relative effectiveness of two different drug treatments on people with a chronic mental illness established two independent test groups. The first group consisted of 8 people with the illness, and the second group consisted of 15 people with the illness. The first group received treatment 1 and had a mean time until remission of 162 days, with a standard deviation of 7 days. The second group received treatment 2 and had a mean time until remission of 171 days, with a standard deviation of 6 days. Assume that the populations of times until remission for each of the two treatments are normally distributed with equal variance. Can we conclude, at the 0.01 level of significance, that the mean number of days before remission after treatment 1, µ, differs from the mean number of days before remission after treatment 2, µ? Perform a two-tailed test. Then complete the parts below. Carry your intermediate computations to three or more decimal places and round your answers as specified in the table. (If necessary, consult a list of formulas.) (a) State the null hypothesis Ho and the alternative hypothesis H1. Ho :0 H :0 (b) Determine the type of test statistic to use. (Choose one) ▼ O=0 OSO (c) Find the value of the test statistic. (Round to three or more decimal places.) O<O (d) Find the two critical values at the 0.01 level of significance. (Round to three or more decimal places.) Dand O (e) Can we conclude that the mean number of days before remission after treatment 1 differs from the mean number of days before remission after treatment 2? O Yes O No 믐 C
Transcribed Image Text:O BUSAD265 Ch11 Hyp x A ALEKS - Kierra Alford x b Answered: Susan has x E T-test for two Means X P Order 356230645 6 Students Home O Inclusive Access - Re x + A www-awu.aleks.com/alekscgi/x/Isl.exe/1o_u-IgNsIkr7j8P3jH-lv-Y-mBdRDk1FzbOsPOIMQwqFYZIN5rXLxPuxnZq4jpYsPJ_OS5M1twf2Ei_4kozoqYNMJlb13a8UsVom. Update : O CONFIDENCE INTERVALS AND HYPOTHESIS TESTING OO OD D Kierra v Hypothesis test for the difference of population means: t test fo... Español Medical researchers interested in determining the relative effectiveness of two different drug treatments on people with a chronic mental illness established two independent test groups. The first group consisted of 8 people with the illness, and the second group consisted of 15 people with the illness. The first group received treatment 1 and had a mean time until remission of 162 days, with a standard deviation of 7 days. The second group received treatment 2 and had a mean time until remission of 171 days, with a standard deviation of 6 days. Assume that the populations of times until remission for each of the two treatments are normally distributed with equal variance. Can we conclude, at the 0.01 level of significance, that the mean number of days before remission after treatment 1, µ, differs from the mean number of days before remission after treatment 2, µ? Perform a two-tailed test. Then complete the parts below. Carry your intermediate computations to three or more decimal places and round your answers as specified in the table. (If necessary, consult a list of formulas.) (a) State the null hypothesis Ho and the alternative hypothesis H1. Ho :0 H :0 (b) Determine the type of test statistic to use. (Choose one) ▼ O=0 OSO (c) Find the value of the test statistic. (Round to three or more decimal places.) O<O (d) Find the two critical values at the 0.01 level of significance. (Round to three or more decimal places.) Dand O (e) Can we conclude that the mean number of days before remission after treatment 1 differs from the mean number of days before remission after treatment 2? O Yes O No 믐 C
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