Question: An insurance company employs agents on a commission basis It
An insurance company employs agents on a commission basis. It claims that, in their first year, agents will earn a mean commission of at least $40,000 and that the population standard deviation is no more than $6,000. A random sample of nine agents found for commission in the first year, measured in thousands of dollars.
The population distribution can be assumed to be normal. Test, at the 10% level, the null hypothesis that the population standard deviation is at most $6,000.
Relevant QuestionsA recent report from a health-concerns study indicated that there is strong evidence of a nation's overall health decay if the percent of obese adults exceeds 28%. In addition, if the low-income preschool obesity rate ...The body mass index (variable BMI) provides an indication of a person's level of body fat as follows: healthy weight, 20-25; overweight, >25-30; obese, greater than 30. Excess body weight, is of course, related to diet, but, ...The recent financial collapse has led to considerable concern about the information provided to potential investors. The government and many researchers have pointed out the need for increased regulation of financial ...You have been asked to determine if two different production processes have different mean numbers of units produced per hour. Process 1 has a mean defined as m1 and process 2 has a mean defined as m2. The null and ...In a study of performance ratings of ex-smokers, a random sample of 34 ex-smokers had a mean rating of 2.21 and a sample standard deviation of 2.21. For an independent random sample of 86 long-term ex-smokers, the mean ...
Post your question