Question

The mayor is interested in finding a 90% confidence interval for the mean number of pounds of trash per person per week that is generated in the city. The study included 177 residents whose mean number of pounds of trash generated per person per week was 35.4 pounds and the standard deviation was 8.7 pounds. Round answers to 3 decimal places where possible.

If many groups of 177 randomly selected members are studied, then a different confidence interval would be produced from each group. What percent of these confidence intervals will contain the true population mean number of pounds of trash generated per person per week?

If many groups of 177 randomly selected members are studied, then a different confidence interval would be produced from each group. What percent of these confidence intervals will not contain the true population mean number of pounds of trash generated per person per week?

Answer 1

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