# Question: Cost of repairs Refer to Exercise 8 Assume the population

Cost of repairs: Refer to Exercise 8. Assume the population is normal. Construct a 95% confidence interval for the population standard deviation. .

## Answer to relevant Questions

Explain the difference between confidence and probability. In Exercises 4 and 5, express the following survey results in terms of confidence intervals for p: The Earth is closest to the Sun in January, but January is cold in the Northern Hemisphere. Explain. Scoring runs: In 2012. the mean number of runs scored by both teams in a Major League Baseball game was 8.62. Following are the numbers of runs scored in a sample of 24 games in 2013. a. Construct a boxplot of the data. Is ...Why is it important to report the P-value or the test statistic when presenting the results of a hypothesis test? The following MINITAB output display presents a 95% confidence interval for the difference between two means. a. Find the point estimate of pi — p2. b. How many degrees of freedom did MINITAB use? c. Fill in the blanks: ...Post your question