Answer:
Distribute the 3 to the parenthesis, and the -1 to the parenthesis.
This will result to:
3x-9-x+4
2x-5
The answer is -1.5. Hope this helps
Step-by-step explanation:
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Answer:
Reject
The test statistic is in the rejection region
Step-by-step explanation:
Since we want to test if the mean predicted by the coach is greater than the mean of the null hypothesis , this is a right-tailed test. It means that, in order to reject , the test statistic must fall to the right (greater than) of the critical value
Given that 2.56 > 1.65 then we reject
<em>The test statistic is in the rejection region (greater than 1.65)
</em>
136 - 51 = 85 days
I think this is what you're asking for