A study was conducted to estimate hospital costs for accident victims who wore seat belts. Twenty randomly selected cases have a distribution that appears to be approximately bell shaped with a mean of $9813 and a standard deviation of $5410. Complete parts (a) and (b). ... a. Construct the 95% confidence interval for the mean of all such costs. $<μ<$ (Round to the nearest dollar as needed.)

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
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ISBN:9780079039897
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A study was conducted to estimate hospital costs for accident victims who wore seat belts. Twenty randomly selected cases have a distribution that appears to be approximately bell-shaped with a mean of $9813 and a standard deviation of $5410. Complete parts (a) and (b).

a. Construct the 95% confidence interval for the mean of all such costs.

\[\$ \_\_\_ < \mu < \$ \_\_\_\]

(Round to the nearest dollar as needed.)
Transcribed Image Text:A study was conducted to estimate hospital costs for accident victims who wore seat belts. Twenty randomly selected cases have a distribution that appears to be approximately bell-shaped with a mean of $9813 and a standard deviation of $5410. Complete parts (a) and (b). a. Construct the 95% confidence interval for the mean of all such costs. \[\$ \_\_\_ < \mu < \$ \_\_\_\] (Round to the nearest dollar as needed.)
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