Question

In: Statistics and Probability

3. The following results come from two independent random samples taken from two populations. Sample Size...

3.
The following results come from two independent random samples taken from two populations.

Sample Size

Sample Mean

Population Standard Deviation

Sample 1

n1=52

x1=15.4

σ1=3.1

Sample 2

n2=64

x2=17.3

σ2=4.2

  1. Provide a 95% confidence interval for the difference between two population means.
  2. Using the critical value approach, test whether the population means differ at the 5% significance level.
  3. Using the p-value approach, test whether the population means differ at the 5% significance level.

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Expert Solution

orchestra answered 2 years ago
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