A sample is selected from a population with an average depression rating of µ = 80 and σ = 16.  After a treatment is administered to the individuals, the sample mean is found to be M = 75 and the variance is s2= 9.  You want to see if the treatment had a significant impact on the sample by analyzing whether the new sample mean after the treatment is significantly different than the population.  What statistical procedure would you use to analyze this data and why? Z Score Comparing X to a Sample One Way Repeated Measures ANOVA Z Score Comparing a Sample to a Population Two Way Independent Measures ANOVA Single Sample t Pearson Product Moment Correlation Independent Measures t Chi Square Goodness of Fit Repeated Measures t One Way Independent Measures ANOVA

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Q: only part 4.

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A: Claim: Average weight is higher for the mice those are in lights on at night than the average weight…