If the correlation between a person's age and annual income is 0.60, then the coefficient of determination tells us that:

Jameson manages a well-known cell phone company. this company has been voted as having the best cell-phone service. consumers appreciate the fact that they can call from almost anywhere in the world and the service still gets through. jameson knows that the company's product far surpasses that of the competition. one thing has been bothering him, though. in order to put so many resources into ensuring the best service, jameson has cut back on employees at the firm's customer call center. recently, consumers have begun complaining about long wait times when they call in with a problem or concern. although its cell phone service is still considered one of the best, customer satisfaction with the firm's customer service has plummeted. jameson does not understand why consumers are getting so upset. he believes the exceptional cell phone service more than makes up for long waiting periods and other issues with its customer service. "after all," he says, "they can't have it all. if i invest more in customer service, that means less investment on ensuring the quality of our product offering."refer to scenario. jameson has asked you, a marketing consultant, to give him advice. he cannot understand how a cell-phone company with the best product offering in the cell-phone service industry could get such low satisfaction ratings simply because the customer service is not up to par. you suggest that jameson has a narrowly defined view of the company's product offering. you tell jameson that successful marketers should define their products as what they

Acompany is developing a new high­performance wax for cross country ski racing. in order to justify the price marketingwants, the wax needs to be very fast. specifically, the mean time to finish their standard test course should be less thanseconds for a former olympic champion. to test it, the champion will ski the course 8 times. the champion's times(selected at random) are 59.9 61.9 48.8 52.2 46.6 45.3 50.6 and 41.1 seconds to complete the test course. complete parts a and b below.a) should they market the wax? assume the assumptions and conditions for appropriate hypothesis testing are metfor the sample.assume=0.05. what are the null and alternative hypotheses? choose the correct answer below.b) suppose they decide not to market the wax after the test, but it turns out that the wax really does lower the champion'saverage time to less thanseconds. what kind of error have they made? explain the impact to the company of such anerror.

Allie and sarah decided that they want to purchase renters insurance for the apartment they share. they made a list of all of the items to be covered by the insurance policy, along with their estimated values. if the items to be covered total more than $3000, the insurance company charges an annual premium of 23% of the total value of the items. if the items to be covered total $3000 or less, the insurance company charges an annual premium of 20% of the total value of the items.