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3. Based on a sample of 20 indoor cats, all around 10 years of age, the amount of sleep they have throughout a 24-hour daily

3. Based on a sample of 20 indoor cats, all around 10 years of age, the amount of sleep they have throughout a 24-hour daily cycle follows a normal distribution with mean of 14 hours. Assuming a population standard deviation of 1.5 hours, construct and interpret a 95% confidence interval for hours of daily sleep for indoor cats around 10 years of age.

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