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In: Statistics and Probability

Independent random samples selected from two normal populations produced the following sample means and standard deviations....

Independent random samples selected from two normal populations produced the following sample means and standard deviations.

Sample 1 Sample 2
n1 = 14 n2 = 11
1 = 7.1 2 = 8.4
s1 = 2.3 s2 = 2.9


Find and interpret the 95% confidence interval for   

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Expert Solution

Solution-

by the summarised data given, confidence interval for mean difference is calculated.

population standard deviation is unknown and assumed equal.

hence, t distribution is used.

◆ Confidence Interval and interpretation-

orchestra answered 2 years ago
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