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Estimate the true mean number of meals

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Reference no: EM131782694

A survey of 20 couples showed the mean number of meals eaten outside the home was 2.76 per week and the standard deviation was 0.75. Assume a normal distribution

a) Create 90% confidence interval to estimate the true mean number of meals eaten outside the home each week

b) An article on restaurent.com claims that couples eat an average of 2 meals outside of the home each week. Do the sample data provide evidence to support the claim? Explain

Reference no: EM131782694

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