In a study entitled How Undergraduate Students Use Credit Cards, Sallie Mae reported that undergraduate students have. mean credit card balance of $3212. This figure was an all-time high and had increased 40% over the previous five years. Assume that a current study is being conducted to determine if it can be concluded that the mean credit card balance for undergraduate students has continued to increase compared to the April 2009 report. Based on previous studies, use a population standard deviation = $1300. a. State the null and alternative hypotheses. Ho: - Select your answer - H₂: P Select your answer 3212 b. What is the p-value for a sample of 180 undergraduate students with a sample mean credit card balance of $3367? If y answer is zero enter "0". 3212 (to 2 decimals) (to 4 decimals) z value p-value c. Using a 0.01 level of significance, what is your conclusion? Select your answer - Conclude that student mean credit card debt is Select your answer - than $3212.

You fill a box with 6 more apples than pears. Create an equation that represents the number of fruit inside the box. First label the unknowns: Let a be the number of apples in the box. Let p be the number of pears.

Monica earned $60 from a bonus plus $8.50 per hour(h) she worked this week. Which of the following expressions best represents Monica's income for the week? A. 8.50h+60 B.8.50 + 60 C. 8.50 + 60h D. 8.50 + h + 60

Stephanie sells 12 pretzels per hour. Robert sells 15 pretzels per hour. This week, Robert sold an additional 18 pretzels. Which of the following expressions represents the total sales of both people this week, where S represents the number of hours that Stephanie worked and R represents the numbers the number of hours that Robert worked?