Mathematics, 15.10.2020 07:01, cici65360
An investment website can tell what devices are used to access their site. The site managers wonder whether they should enhance the facilities for trading via smartphones so they want to estimate the proportion of users who access the site that way. They draw a random sample of
131
investors from their customers. Suppose that the true proportion of smartphone users is
26
%.
Complete parts a) through c) below.
a) What would the managers expect the shape of the sampling distribution for the sample proportion to be?
Skewed to the left
Unimodal and symmetric
Skewed to the right
Nonsymmetric
b) What would be the mean of this sampling distribution?
(Round to two decimal places as needed.)
c) What would be the standard deviation of the samplingdistribution?
(Round to three decimal places as need
Answers: 2
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An investment website can tell what devices are used to access their site. The site managers wonder...
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