According to a bridal magazine, the average cost of a wedding reception for an American wedding is $8213. Assume that this average is based on a random sample of 450 weddings and that the standard deviation is $2185. a. What is the point estimate of the corresponding population mean?

b. Create and interpret a 98% confidence interval for the corresponding population mean.

c. What is the margin of error for the confidence interval you found in part b?

Lorne subtracted 6x3 – 2x + 3 from –3x3 + 5x2 + 4x – 7. use the drop-down menus to identify the steps lorne used to find the difference.

State whether weight is a function of height for the six students and explain. a. yes, height is a function of weight because two students weigh 165 pounds but have different heights. b. no, height is not a function of weight because two students weigh 165 pounds but have different heights. c. yes, weight is a function of height because for each value of height there is one corresponding value of weight. d. no, weight is not a function of height because there is not enough data to determine a function.

Which of the following is the true for f(x) = 5cos