Mathematics, 25.04.2020 01:51 UndeadDelta
The 92 million Americans of age 50 and over control 50% of all discretionary income. AARP estimated that the average annual expenditure on restaurants and carryout food was $1,873 for individuals in this age group. Suppose this estimate is based on a sample of 80 persons and that the sample standard deviation is $550.
A. At 95% confidence, what is the margin of error?
B. What is the 95 % confidence interval for the population mean amount spent on restaurants and carryout food?
C. What is your estimate of the total amount spent by Americans of age 50 and over on restaurants and carryout food?
D. If the amount spent on restaurants and carryout food is skewed to the right, would you expect the median amount spent to be greater or less than $1,873?
Answers: 3
Mathematics, 21.06.2019 16:50, angelkiss2019
1. the wheeling bridge in west virginia is about 307 meters long. if you walk with a stride of about meter, about how many steps would it take you to cross this suspension bridge?
Answers: 1
Mathematics, 21.06.2019 23:10, CrownedQueen
Click an item in the list or group of pictures at the bottom of the problem and, holding the button down, drag it into the correct position in the answer box. release your mouse button when the item is place. if you change your mind, drag the item to the trashcan. click the trashcan to clear all your answers. find the lateral area for the prism. l. a. = 0123456789
Answers: 3
The 92 million Americans of age 50 and over control 50% of all discretionary income. AARP estimated...
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