1 Answer

Itkevin · Answer 1 · 2023-06-28T11:59:58+0000

Given information:

$\begin{gathered} H_0\colon\mu_1=\mu_2 \\ H_a\colon\mu_1<\mu_2 \end{gathered}$

n1=12

Mean x1=75.4

SD1=9.7

n2=19

Mean x2=83.3

SD2=17.8

significance level alfa=0.02

To find the test statistic let's use the formula:

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