Suppose the height of the Just Like Me dolls manufactured at Danielle\'s Dolls f

Question

Suppose the height of the Just Like Me dolls manufactured at Danielle's Dolls follows a normal distribution with a mean of 36.8 in. Kathy, the machine technician, thinks she might have accidentally changed the settings on the machine that produces the dolls' legs. She takes a simple random sample of 195 dolls and conducts a one-sample, two-tailed t-test for a mean with a significance level of 0.05 to see if her assumption is correct. Her sample data are summarized below. Sample Sample Sample standard One-sample deviation -statistic P-value size mean 195 37.07 in 1.38 in 2.732 0.007 What is the correct conclusion of the test? The decision is to the null hypothesis at significance level = 0.05 (p = 0.007). There is that the height of 36.8 in

Explanation / Answer

as p value is less then 0.05 level ; therefore

the decision is to reject the null hypothesis

there is sufficent evidence that the average height of dolls manufactured is different from 36.8

please revert for options if they are available so that I may help to choose them

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