# Question: Using the data in Exercise 3 test the hypothesis that

Using the data in Exercise 3, test the hypothesis that the mean age of houses in the two neighborhoods is the same. You may assume that the ages of houses in each neighborhood follow a Normal distribution.

a) Calculate the P-value of the statistic knowing that the approximation formula gives 62.2 df (you will need to round or use technology).

b) Calculate the P-value of the statistic using the rule that df is at least min (n1 – 1, n2 – 1).

c) What do you conclude at α = 0.05?

a) Calculate the P-value of the statistic knowing that the approximation formula gives 62.2 df (you will need to round or use technology).

b) Calculate the P-value of the statistic using the rule that df is at least min (n1 – 1, n2 – 1).

c) What do you conclude at α = 0.05?

**View Solution:**## Answer to relevant Questions

It has long been a dream of farmers to summon rain when it is needed for their crops. Crop losses to drought have significant economic impact. One possibility is cloud seeding in which chemicals are dropped into clouds in an ...Exercises 72 and 74 give summaries and displays for two potential sites for a wind turbine. Test an appropriate hypothesis to see if there is evidence that either of these sites has a higher average wind speed. In exercise ...For another test of the tires in Exercise 81, the company tried them on 10 different cars, recording the stopping distance for each car on both wet and dry pavement. Results are shown in the following table. a) Find a 95% ...For the data in Exercise 1, a) Test the null hypothesis at α = 0.05 using the pooled t-test. (Show the t-statistic, P-value, and conclusion.) b) Find a 95% confidence interval using the pooled degrees of freedom. c) Are ...In order to judge whether the program is successful, the manager of the supermarket chain in Exercise 21 wants to know the plausible range of values for the mean increase in customers using the program. Construct a 90% ...Post your question