Mathematics, 16.11.2019 02:31 dpickard9848
Acompany manufacturing cds is working on a new technology. a random sample of 705 internet users were asked: "as you may know, some cds are being manufactured so that you can only make one copy of the cd after you purchase it. would you buy a cd with this technology, or would you refuse to buy it even if it was one you would normally buy? " of these users, 64% responded that they would buy the cd.
a) create a 99% confidence interval for this percentage.
b) if the company wants to cut the margin of error in half, how many users must they survey?
Answers: 2
Mathematics, 21.06.2019 19:00
Sanya noticed that the temperature was falling at a steady rate of 1.4 degrees every hour from the time that she first checked her outdoor thermometer. by 6 a.m., the temperature had fallen 21 degrees. which expression can you use to find how many hours earlier she had first checked the thermometer?
Answers: 3
Mathematics, 21.06.2019 20:30
Kayla made observations about the sellin price of a new brand of coffee that sold in the three different sized bags she recorded those observations in the following table 6 is $2.10 8 is $2.80 and 16 is to $5.60 use the relationship to predict the cost of a 20oz bag of coffee.
Answers: 3
Mathematics, 21.06.2019 21:00
Calculate the missing value. round the answer to on decimal place. start with 70, increase it by 21%, and end up with
Answers: 2
Acompany manufacturing cds is working on a new technology. a random sample of 705 internet users wer...
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