State the null hypothesis Ho and the alternative hypothesis H • H, :0 H, :0 Determine the type of test statistic to use. (Choose one) Find the value of the test statistic. (Round to three or more decimal places.)
State the null hypothesis Ho and the alternative hypothesis H • H, :0 H, :0 Determine the type of test statistic to use. (Choose one) Find the value of the test statistic. (Round to three or more decimal places.)
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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Transcribed Image Text:O BUSAD265 Ch11 Hypothesi x
A ALEKS - Kierra Alford - Lea x
A ALEKS
C Medical Researchers Intere x
b Answered: Kierra v Hypothe x
E T-test for two Means - Unk x
+
A www-awu.aleks.com/alekscgi/x/lsl.exe/1o_u-IgNslkr7j8P3jH-lv-Y-mBdRDk1FzbOsPOIMQwqFYZIN5rXLxPuxnZq4jpYsPJ_OS5M1twf2Ei_4kozoqYNMJIb13a8UsVom..
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O CONFIDENCE INTERVALS AND HYPOTHESIS TESTING
Kierra
Hypothesis test for the difference of population means: t test fo...
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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 9 people with the illness, and the second group consisted of 14 people with the illness. The first group
received treatment 1 and had a mean time until remission of 184 days, with a standard deviation of 7 days. The second group received treatment 2 and had a
mean time until remission of 172 days, with a standard deviation of 9 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, u,, differs from the mean number of days before remission after treatment 2, u?
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.)
An
(a) State the null hypothesis H, and the alternative hypothesis H .
H, :0
H, :0
(b) Determine the type of test statistic to use.
(Choose one) ▼
D=0
OSO
(c) Find the value of the test statistic. (Round to three or more decimal places.)
(d) Find the p-value. (Round to three or more decimal places.)
(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 ONo
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