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Question

Consider the following hypotheses:

$\begin{aligned} &H_0: \mu \leq 210 \\ &H_A: \mu>210 \end{aligned}$

Find the $p$-value for this test based on the following sample information.

b. $\bar{X}=216 ; s=26 ; n=80$

Solution

VerifiedAnswered 1 year ago

Answered 1 year ago

Step 1

1 of 9Considering this task we know that hypotheses look like this:

$\begin{aligned} H_0&:\mu\le210\\ H_A&:\mu>210 \end{aligned}$

Uzorak iznosi $n=80$, sample standard deviation is $s=26$ and population mean is $\overline{x}=216$.

We need to calculate the value of the test statistic and $p-$ value.

*How do we choose a test when we do not know the standard deviation of the population?*

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