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In: Statistics and Probability

1, Assume that both populations are normally distributed. ​(a) Test whether μ1≠μ2 at the α=0.05 level...

1, Assume that both populations are normally distributed.

​(a) Test whether μ1≠μ2 at the α=0.05 level of significance for the given sample data.​ Detemine the​ P-value for this hypothesis test.

​(Round to three decimal places as​ needed.)

(b) Construct a 95​% confidence interval about μ1−μ2.

Population 1

Population 2

n

14

14

x

11.2

8.4

s

2.8

3.2

2, Use the given statistics to complete parts​ (a) and​ (b). Assume that the populations are normally distributed.

​(a) Test whether μ1>μ2 at the α=0.05 level of significance for the given sample data.​

Find the test statistic for this hypothesis test. and P- Value

(b) Construct a 95​% confidence interval about μ1−μ2.

population 1 population 2

n 29 22

x 49.1 43.8

s 4.4 10.5

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orchestra answered 2 years ago
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