(Answered) According to a survey only 15 of customers who visited the

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According to a survey, only 15% of customers who visited the website of a major retail store made a purchase. Random sample sizes of 50 are selected. 30) The standard deviation of all the sample proportions of customers who will make a purchase after visiting the website is

According to a survey, only 15% of customers who visited the website of a major retail store made a purchase. Random sample sizes of 50 are selected. 13) The mean of all the sample proportions of customers who will make a purchase after visiting the website is

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