Business, 04.05.2021 01:00, liliaboop2012
The market research director for Dotty’s Department Store wants to study women’s spending on cosmetics. A survey of the store’s customers is designed in order
to estimate the proportion of women who purchase their
cosmetics primarily from Dotty’s Department Store and
the mean yearly amount that women spend on cosmetics.
A previous survey found that the standard deviation of the
amount women spend on cosmetics in a year is approximately $18.
a. What sample size is needed to have 99% confidence of estimating the population mean amount spent to within
b. How many of the store’s credit card holders need to be
selected to have 90% confidence of estimating the population proportion to within +-0.045?
Answers: 1
Business, 22.06.2019 01:30, ykluhredd
Side bar toggle icon performance in last 10 qs hard easy performance in last 10 questions - there are '3' correct answers, '3' wrong answers, '0' skipped answers, '1' partially correct answers about this question question difficulty difficulty 60% 42.2% students got it correct study this topic • demonstrate an understanding of sampling distributions question number q 3.8: choose the correct estimate for the standard error using the 95% rule.
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Alocal barnes and noble bookstore ordered 80 marketing books but received 60 books. what percent of the order was missing?
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Colter steel has $5,550,000 in assets. temporary current assets $ 3,100,000 permanent current assets 1,605,000 fixed assets 845,000 total assets $ 5,550,000 assume the term structure of interest rates becomes inverted, with short-term rates going to 10 percent and long-term rates 2 percentage points lower than short-term rates. earnings before interest and taxes are $1,170,000. the tax rate is 40 percent earnings after taxes = ?
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The market research director for Dotty’s Department Store wants to study women’s spending on cosmeti...
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