Answer:
The first one is either 88 feet or 90 feet
Step-by-step explanation:
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:
$389.35
Step-by-step explanation:
A certain computer costs $599.00 at Best Buy. On Black Friday, it is on sale for 35% off.
So, after 35% off the price of the computer will reduce from $599.00.
We are asked to find the cost of the computer on Black Friday.
Therefore, the price of the computer will reduce by
Dollars.
And the reduced price on the Black Friday will be $(599 - 209.65) = $389.35 (Answer)
Answer:
7,5 hours
Step-by-step explanation: