13. g points) A consulting agency was asked by a large insurance company to investigate if business majors were better salespersons than those with other majors. A sample of 5 0 salespersons with a business degree showed that they sold an average of 18 insurance policies per week. Another sample of 45 salespersons with a degree other than business showed that they sold an average of 14 insurance policies per week. The population standard deviation for these two samples are 2.6 policies and 3.3 policies respectively. Using a 1% signicance level, can you conclude that persons with a business degree has a higher mean than those who have a degree in another area? g the pvalue method or the critical value method) a. Write the Null and the Alternative hypothesis. b. Calculate the test statistics. c. Find the Pvalue or the Critical value. d. What is your conclusion