Mathematics, 17.06.2020 20:57, soccerhannah290
An investment website can tell what devices are used to access the site. The site managers wonder whether they should enhance the facilities for trading via "smart phones", so they want to estimate the proportion of users who access the site that way(even if they also use their computers sometimes). They draw a random sample of 100 investors from their customers. Suppose that the true proportion of smart phone users is 33%.
a) What would the standard deviation of the sampling distribution of the proportion of the smart phone users be?
b) What is the probability that the sample proportion of smart phone users is greater than
0.33?
c) What is the probability that the sample proportion is between 0.19 and 0.31?
Answers: 2
Mathematics, 21.06.2019 18:00, imanim3851
Give all possible names for the line shown. calculation tip: lines can be written with either point first.
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Mathematics, 21.06.2019 18:00, BeautyxQueen
John read the first 114 pages of a novel, which was 3 pages less than 1/3 of the novel. write an equation to determine the total number of pages (p)(p) in the novel.
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