nis problem, carry at least four digits arter decimal in your calculations. Answers may vary slightly due to rounding. How hard is it to reach a businessperson by phone? Let p be the proportion of calls to businesspeople for which the caller reaches the person being called on the first try. (a) If you have no preliminary estimate for p, how many business phone calls should you include in a random sample to be 80% sure that the point estimate p will be within a distance of 0.06 from p? (Round your answer up to the nearest whole number.) 114 phone calls (b) A report states that businesspeople can be reached by a single phone call approximately 13% of the time. Using this (national) estimate for p, answer part (a). (Round your answer up to the nearest whole number.) 38 |× phone calls

MATLAB: An Introduction with Applications
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ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
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For this problem, carry at least four digits after the decimal in your calculations. Answers may vary slightly due to rounding.
How hard is it to reach a businessperson by phone? Let p be the proportion of calls to businesspeople for which the caller reaches
the person being called on the first try.
(a) If you have no preliminary estimate for p, how many business phone calls should you include in a random sample to
be 80% sure that the point estimate p will be within a distance of 0.06 from p? (Round your answer up to the nearest
whole number.)
114
phone calls
(b) A report states that businesspeople can be reached by a single phone call approximately 13% of the time. Using this
(national) estimate for p, answer part (a). (Round your answer up to the nearest whole number.)
38
X phone calls
Transcribed Image Text:For this problem, carry at least four digits after the decimal in your calculations. Answers may vary slightly due to rounding. How hard is it to reach a businessperson by phone? Let p be the proportion of calls to businesspeople for which the caller reaches the person being called on the first try. (a) If you have no preliminary estimate for p, how many business phone calls should you include in a random sample to be 80% sure that the point estimate p will be within a distance of 0.06 from p? (Round your answer up to the nearest whole number.) 114 phone calls (b) A report states that businesspeople can be reached by a single phone call approximately 13% of the time. Using this (national) estimate for p, answer part (a). (Round your answer up to the nearest whole number.) 38 X phone calls
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