The mean number of hours watching TV per week for a sample of 585 college students is 28. If the margin of error for the population mean with a 98% confidence interval is 1.4, construct a 98% confidence interval for the mean number of hours watching TV per week for all college students.

(26.6,29.4)

Step-by-step explanation:

The 98% confidence interval can be computed as

Point estimate± Margin of error

Point estimate=mean number of hours watching TV by college students=28.

Margin of error=1.4.

The 98% confidence interval for mean number of hours watching TV per week for all college students

28± 1.4

(28-1.4,28+1.4)

(26.6,29.4).

one that is bigger than 3 1/2

d. 8

step-by-step explanation:

the given radical expression is:

we can rewrite this as:

we express as square numbers to get;

the exponents will now cancel out to give.

the correct answer is d