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Mathematics, 13.02.2020 21:25 Tiny5375
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 200 investors from their customers. Suppose that the true proportion of smart phone users is 43%.a) What would the standard deviation of the sampling distribution of the proportion of the smart phone users be?
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An investment website can tell what devices are used to access the site. The site managers wonder wh...
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