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A medical investigation claims that the average number of infections per week at a hospital in...

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Statistics

A medical investigation claims that the average number ofinfections per week at a hospital in Pennsylvania is at least 19.1.A random sample of 40 weeks had a mean number of 17.7 infections,and a sample standard deviation is 3.8. Is there enough evidence toreject the investigator’s claim? Use a 8 % level of significance totest this claim.

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4.4 Ratings (850 Votes)
Solution Given thatPopulation mean 191Sample mean 177Sample standard deviation s 38Sample size n 40Level of    See Answer
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