ndependent simple random samples selected from normally dist populations, ard deviations are equal. Complete parts (a) and (b) below. Use a 0.10 significance level for both parts. (Round to two decimal places as needed.) P-value is (Round to three decimal places as needed.) e the conclusion for the test. test statistic, t, is ... 2.37 0.62 2.66 0.96 A. Fail to reject the null hypothesis. There is not sufficient evidence to warrant rejection of the claim that the two samples are from populations with the same mean. B. Reject the null hypothesis. There is not sufficient evidence to warrant rejection of the claim that the two samples are from populations with the same

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9.2 Q3
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. Complete parts (a) and (b) below. Use a 0.10 significance level for both parts.
(Round to two decimal places as needed.)
The P-value is (Round to three decimal places as needed.)
The test statistic, t, is
State the conclusion for the test.
...
μ
EKS
Treatment Placebo
1₂
11
31
2.37
36
2.66
0.62
0.96
OA. Fail to reject the null hypothesis. There is not sufficient evidence to warrant rejection of the claim that the two samples are from populations with the
same mean.
OB. Reject the null hypothesis. There is not sufficient evidence to warrant rejection of the claim that the two samples are from populations with the same
monn
Transcribed Image Text: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. Complete parts (a) and (b) below. Use a 0.10 significance level for both parts. (Round to two decimal places as needed.) The P-value is (Round to three decimal places as needed.) The test statistic, t, is State the conclusion for the test. ... μ EKS Treatment Placebo 1₂ 11 31 2.37 36 2.66 0.62 0.96 OA. Fail to reject the null hypothesis. There is not sufficient evidence to warrant rejection of the claim that the two samples are from populations with the same mean. OB. Reject the null hypothesis. There is not sufficient evidence to warrant rejection of the claim that the two samples are from populations with the same monn
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. Complete parts (a) and (b) below. Use a 0.10 significance level for both parts.
C...
mean.
P
CIX
b. Construct a confidence interval suitable for testing the claim that the two samples are from populations with the same mean.
014-12-0
(Round to three decimal places as needed.)
n
O c. Reject the null hypothesis. There is sufficient evidence to warrant rejection of the claim that the two samples are from populations with the same
mean.
Treatment Placebo
H1
12
31
36
2.37
2.66
0.62
0.96
OD. Fail to reject the null hypothesis. There is sufficient evidence to warrant rejection of the claim that the two samples are from populations with the
same mean.
Transcribed Image Text: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. Complete parts (a) and (b) below. Use a 0.10 significance level for both parts. C... mean. P CIX b. Construct a confidence interval suitable for testing the claim that the two samples are from populations with the same mean. 014-12-0 (Round to three decimal places as needed.) n O c. Reject the null hypothesis. There is sufficient evidence to warrant rejection of the claim that the two samples are from populations with the same mean. Treatment Placebo H1 12 31 36 2.37 2.66 0.62 0.96 OD. Fail to reject the null hypothesis. There is sufficient evidence to warrant rejection of the claim that the two samples are from populations with the same mean.
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