Mathematics, 26.09.2019 21:20 sanaiajohnson56
Atoy manufacturer wants to know how many new toys children buy each year. a sample of 601 children was taken to study their purchasing habits. construct the 95% confidence interval for the mean number of toys purchased each year if the sample mean was found to be 6.7. assume that the population standard deviation is 1.5. round your answers to one decimal place.
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