Answer:
The significance level is 
and since we are conducting a right tailed test we need to find a critical value who accumulate 0.01 of the area in the right of the normal standard distribution and we got:
So we reject the null hypothesis is 
Step-by-step explanation:
For this case we define the random variable X as the number of entry-level swimmers and we are interested about the true population mean for this variable . On specific we want to test this:
Null hypothesis: 
Alternative hypothesis: 
And the statistic is given by:
The significance level is and since we are conducting a right tailed test we need to find a critical value who accumulate 0.01 of the area in the right of the normal standard distribution and we got:
So we reject the null hypothesis is
Answer:
a. -x, y b. x, y c. x, -y
Step-by-step explanation:
hope this helps:)
Answer:
Step-by-step explanation:
a1=first term
{(9)(9/256)}^3/2=
(81/256)^3/2=
0.031676352/2=
0.015838176
Answer:
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