Test the given claim using the α=0.05 significance level and assuming that the populations are normally...

Test the given claim using the α=0.05 significance level and assuming that the populations are normally distributed and that the population variances are equal.
Claim: The treatment population and the placebo population have the same means.
Treatment group: n=9, x¯=110, s=5.9.
Placebo group: n=7, x¯=116,s=5.7.
The test statistic is =___________
The positive critical value is =__________
The negative critical value is =________
Is there sufficient evidence to warrant the rejection of the claim that the treatment and placebo populations have the same mean?

A. Yes
B. No

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Expert Solution

orchestra answered 1 year ago

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