A researcher wonders if American families own too many pets. A random sample of 64 families shows that the average family owns 3.3 pets with a variance of 16. Note that this distribution is extremely skewed. 34. Construct a 95% confidence interval on the mean number of pets that all American families own. 35. Interpret the confidence interval using the wording discussed in class. 36. Can we conclude the researcher's belief that people own at least 2 pets? Justify your answer. 37. Discuss the validity of your results by checking and addressing all assumptions.
Added by Jeremiah G.
Step 1
To construct a 95% confidence interval on the mean number of pets that all American families own, we need to use the formula: CI = x̄ ± tα/2 * (s/√n) where x̄ is the sample mean (3.3), s is the sample standard deviation (sqrt(16) = 4), n is the sample size (64), Show more…
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