You want to estimate the mean time college students spend watching online videos each day. the estimate must be within 2 minutes of the population mean. determine the required sample size to construct a 99% confidence interval for the population mean. assume the population standard deviation is 2.4 minutes.

10

Step-by-step explanation:

We know that the formula to find the sample size is given by :-

, where = population standard deviation.

= Two -tailed z-value for (significance level)

E= margin of error.

Given : Confidence level : C =99%=0.99

i.e.

⇒Significance level :

By using z-value table ,Two -tailed z-value for :

E= 2 minutes

The required sample size will be :-

Hence, the required sample size = 10

3rd box is the answer

step-by-step explanation:

0/5 is 0, 2/0 is undefined, and 0/0 is indeterminate.

step-by-step explanation:

hope my answer has you!