independent simple random samples selected from normally distributed populations, and do not assume that the population standard deviations are equal. Use a 0.01 significance level to test the claim that the two samples are from populations with the same mean as follows. In 25 30 2.34 2.66 IS 0.92 0.52 What are the null and alternative hypotheses? O A. Ho: H1= H2 O B. Ho: H1# H2 H1: H1#H2 O C. Ho: H1= H2 O D. Ho: H1 H2 H1: H1242 Using 1 less than the smaller sample size as an estimate of the degrees of freedom, find the lower critical value from the t-table. |(Round to three decimal places as needed.) Using 1 less than the smaller sample size as an estimate of the degrees of freedom, find the upper critical value from the t-table. ry Click to select your answer(s) and then click Check Answer
independent simple random samples selected from normally distributed populations, and do not assume that the population standard deviations are equal. Use a 0.01 significance level to test the claim that the two samples are from populations with the same mean as follows. In 25 30 2.34 2.66 IS 0.92 0.52 What are the null and alternative hypotheses? O A. Ho: H1= H2 O B. Ho: H1# H2 H1: H1#H2 O C. Ho: H1= H2 O D. Ho: H1 H2 H1: H1242 Using 1 less than the smaller sample size as an estimate of the degrees of freedom, find the lower critical value from the t-table. |(Round to three decimal places as needed.) Using 1 less than the smaller sample size as an estimate of the degrees of freedom, find the upper critical value from the t-table. ry Click to select your answer(s) and then click Check Answer
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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Treatment Placebo
A study was done using a treatment group and a placebo group. The results are shown in the table. 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. Use a 0.01 significance level to test the claim that the two samples are from populations with the same mean as
follows,
H1
25
30
2.66
0.52
IX
2.34
0.92
or
What are the null and alternative hypotheses?
O A. Ho: H1=H2
O B. Ho H1 H2
H1: H1 H2
H1 P1<H2
O C. Ho: H1=H2
O D. Ho H1P2
H1: H1> H2
H1 P12H2
Using 1 less than the smaller sample size as an estimate of the degrees of freedom,, find the lower critical value from the t-table.
| (Round to three decimal places as needed.)
ontents
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Using 1 less than the smaller sample size as an estimate of the degrees of freedom, find the upper critical value from the t-table.
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