Mathematics, 07.05.2020 04:58 cait0820
Unexpected expense. In a random sample 765 adults in the United States, 322 say they could not
cover a $400 unexpected expense without borrowing money or going into debt.
(a) What population is under consideration in the data set?
(b) What parameter is being estimated?
(c) What is the point estimate for the parameter?
(d) What is the name of the statistic can we use to measure the uncertainty of the point estimate?
(e) Compute the value from part (d) for this context.
(f) A cable news pundit thinks the value is actually 50%. Should she be surprised by the data?
(g) Suppose the true population value was found to be 40%. If we use this proportion to recompute the value in part (e) using p = 0.4 instead of pˆ, does the resulting value change much?
Answers: 1
Mathematics, 21.06.2019 19:00
The figures below are made out of circles, semicircles, quarter circles, and a square. find the area and the perimeter of each figure and give your answers as a completely simplified exact value in terms of π (no approximations).
Answers: 1
Mathematics, 21.06.2019 19:00
Tabby sells clothing at a retail store, and she earns a commission of 6.25% on all items she sells. last week she sold a pair of jeans for $32.50, a skirt for $18.95, and 2 blouses for $14.95 each. what was tabby's total commission? a $4.15 b $5.08 c $81.35 d $348.60
Answers: 3
Mathematics, 21.06.2019 20:00
He weights of 2-pound bags of best dog food are approximately normally distributed with a given mean and standard deviation according to the empirical rule, what percentage of the bags will have weights within 3 standard deviations of the mean? 47.5%68%95%99.7%
Answers: 3
Mathematics, 21.06.2019 20:00
Fred has a spinner that is split into four equal sections: red, blue, green, and yellow. fred spun the spinner 688 times. which of the following would be a good estimate of the number of times the spinner lands on the green section? a. 269 b. 603 c. 344 d. 189
Answers: 1
Unexpected expense. In a random sample 765 adults in the United States, 322 say they could not
Mathematics, 26.07.2021 03:10
Mathematics, 26.07.2021 03:10
Chemistry, 26.07.2021 03:10
Mathematics, 26.07.2021 03:10
Mathematics, 26.07.2021 03:10
Mathematics, 26.07.2021 03:10
History, 26.07.2021 03:10
Mathematics, 26.07.2021 03:10
Mathematics, 26.07.2021 03:10
Mathematics, 26.07.2021 03:20
Chemistry, 26.07.2021 03:20