Question: QUESTION 10 A study is planned to be conducted to verify what proportion of customers upgrade their internet account. A preliminary sample was taken

QUESTION 10 A study is planned to be conducted to verify what proportion of customers upgrade their internet account. A preliminary sample was taken that showed the proportion of customers upgrading was 0.37. This proportion was used as a planning value. With this planning value, what sample size must now be taken for the 95% confidence interval to have the margin of error of 0.040? Use the fact that 95% of normally distributed observations are within 1.96 standard deviations. Give your answer with 2 decimals. Do NOT round the sampe size to a whole number. For example, if you obtain 456.76 for the sample size, enter this value, not 457.

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