What is the relationship between the size of a sample and the width of the confidence interval for the mean?

A) The smaller the sample size, the narrower the confidence interval for the mean.
B) The larger the sample size, the narrower the confidence interval for the mean.
C) The larger the sample size, the wider the confidence interval for the mean.
D) The size of the sample has no influence on the width of the confidence interval for the mean.

Calculate the combined equivalent value in five months from now of a payment stream consisting of $1000 payable today and $1500 payable in five months? Assume money can earn 5.5%.

Last month,the ending balance on Maryanne's MasterCard was $1,789,the average daily balance was $755,and the monthly periodic rate is 1.85%.Her finance charge can be calculated by multiplying the ending balance times the monthly periodic rate.So the finance charge is $1,789  0.0185 = $33.10.

A debt of $7,000 accumulated interest at 9.5% compounded quarterly for 15 months, after which the rate changed to 8.5% compounded semi-annually for the next six months. What was the total amount owed at the end of the entire 21-month period?

Mathematically, probability may be defined as ______.

A) the number of ways an outcome may occur divided by the total number of possible outcomes
B) the total number of possible outcomes minus the number of ways a particular outcome may occur
C) the likelihood of rejecting the null hypothesis
D) the number of ways an outcome may occur

Carol Chin received $5,400 as an annual profit-sharing bonus from her employer. Her accountant recommended an investment that would give her a return of 9% compounded annually. Compute the value of Carol's investment after 7 years. (Use Tables 16-1A&B or a calculator.)​