Can I please get this in 30mins.

6. (60 pts.) The table below shows the earnings (in thousands of dollars) of a random sample of 9 male and 10 female salespersons. a. At a = .10, can you conclude that there is a difference between the males' and females' earnings? Assume underlying normal distributions. b. Construct an 80% confidence interval for the difference in mean earnings between males and females. c. Interpret the confidence interval in terms of this problem. d. What is the point estimate? e. What is the margin of error? females 27 51 43 35 48 37 34 47 50 40 males 28 43 64 51 48 36 45 67 49 7. (10 pts.) What is the purpose of regression? 8. (35 pts.) A survey was taken to determine whether there is a gender gap in. the confidence people have in the local town council. Does the survey indicate a relationship between gender and confidence in the town council at the 1% significance level? Confidence in the Town Council Great deal Some Very little Men 56 115. 29 Women 94 175 31