Mathematics, 20.07.2019 09:40, Arealbot
An auto mechanic knows the average time it takes to replace a defective car radiator is 70 minutes with a standard deviation of 12 minutes. this average is based on a random sample of 50. which excel statements will construct a 90% confidence interval for the time needed to replace a defective car radiator? a. =70+1.96*12/sqrt(50), and =70-1.96*12/sqrt(50) b. =70+1.96*3.46/sqrt(50), and =70-1.96*3.46/sqrt(50) c. =70+1.645*3.46/sqrt(50), and =70-1.645*3.46/sqrt(50) d. =70+1.645*12/sqrt(50), and =70-1.645*12/sqrt(50) e. none of the above.
Answers: 1
Mathematics, 21.06.2019 18:00, dizzleman3030
Find the perimeter of the figure shown above. a. 40 cm c. 52 cm b. 60 cm d. 75 cm select the best answer from the choices provided
Answers: 1
Mathematics, 22.06.2019 01:00, NNopeNNopeNNope
Bc and bd are opposite rays. all of the following are true except a)a, b,c, d are collinear b)a, b,c, d are coplanar c)bc=bd d)b is between c and d
Answers: 1
Mathematics, 22.06.2019 03:30, kevenluna10oytivm
At the beginning of a call to the cable company, a message tells customers, "after you finish talking to our customer service representative, you will be asked to take a five-question survey about the level of service you recieved. it would be appreciated if you could stay on the line to answer the survey questions." what type of sampling is the cable company using?
Answers: 3
Mathematics, 22.06.2019 04:00, dmckinnies8
30 points if you answer all 3 questions with work!
Answers: 1
An auto mechanic knows the average time it takes to replace a defective car radiator is 70 minutes w...
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