You measure 46 watermelons' weights, and find they have a mean weight of 79 ounces. Assume the population standard deviation is 12.3 ounces. Based on this, construct a 95% confidence interval for the true population mean watermelon weight. Give your answers as decimals, to two places You measure 46 watermelons' weights, and find they have a mean weight of 79 ounces. Assume the population standard deviation is 12.3 ounces. Based on this, construct a 95% confidence interval for the true population mean watermelon weight. Give your answers as decimals, to two places        ±     ±

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A: Givensample size(z)=25α=1-0.90=0.10α2=0.05

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Q: How can you make a 95% confidence interval smaller without changing the confidence level?

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Q: construct a 90% confidence interval.

A:

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