Mathematics, 23.07.2020 16:01, harleyguerrieri

8.43 An advertising executive wants to estimate the mean amount of time that consumers spend with digital media daily. From past studies, the standard deviation is estimated as 45 minutes. a. What sample size is needed if the executive wants to be 90% confident of being correct to within {5 minutes

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8.43 An advertising executive wants to estimate the mean amount of time that consumers spend with di...