1) The average salary of managers in the advertising industry is $180,000 per year. Suppose we would like to take a sample of managers at a new company ABC, to see whether the mean annual salary is different from that of the industry. State the null and alternative hypotheses.
2) Suppose a sample of 40 managers at ABC showed a sample mean annual salary of $170,000. Assume a population standard deviation of $30,000. With = .05 as the value of significance, what is your conclusion?© BrainMass Inc. brainmass.com May 20, 2020, 10:31 pm ad1c9bdddf
Null hypothesis- The average salary of managers in the advertising industry is $180,000 per year
Alternative hypothesis- The average ...
Null and alternative hypothesis for ABC are examined.