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Mathematics, 21.09.2019 00:10, caleb19moody
Business statistics 8-10 in an article in marketing science, silk and berndt investigate the output of advertising agencies. they describe ad agency output by finding the shares of dollar billing volume coming from various media categories such as network television, spot television, newspapers, radio, and so forth. a suppose that a random sample of 400 u. s. advertising agencies gives an average percentage share of billing volume from network television equal to 7.46 percent, and assume that the population standard deviation equals 1.42 percent. calculate a 95 percent confidence interval for the mean percentage share of billing volume from network television for the population of all u. s. advertising agencies.
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Business statistics 8-10 in an article in marketing science, silk and berndt investigate the output...
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