Mathematics, 09.03.2020 23:46, krys4281

The manager of a grocery store has taken a random sample of 100 customers. The average length of time it took these 100 customers to check out was 3 minutes. It is known that the standard deviation of the population of checkout times is 1 minute. The 95% confidence interval for the true average checkout time (in minutes) is

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The manager of a grocery store has taken a random sample of 100 customers. The average length of tim...