Mathematics, 13.11.2019 02:31, clairebear65
Many companies are increasingly concerned about computer security and employees using their computers for personal use. a random sample of 50 employees of liberty mutual insurance company was asked whether they use the internet for nonbusiness (personal) purposes during the day. the number of hours for each employee is given on the text website. assume sigma = 0.5 hours. a. find a 95% confidence interval for the mean number of hours all employees at liberty mutual use the internet for personal reasons. b using the confidence interval in part (a), is there any evidence to suggest that the mean time spent using the internet for personal reasons is more than 1 our justify your answer. c. how large a sample is necessary for the bound on the error of estimation to be 0.1 hours? d. do you think the underlying distribution of time spent on internet for personal use is normal? explain your answer.
Answers: 2
Mathematics, 21.06.2019 16:00, Destinationz
Svetlana's hair is 4 4 centimeters ( cm cm) long. her hair grows 1 . 5 cm 1.5cm per month. svetlana wants her hair to be less than 1 6 cm 16cm long. write an inequality to determine the number of months, m m, svetlana can allow her hair to grow so that it is less than 1 6 cm 16cm long.
Answers: 3
Mathematics, 21.06.2019 20:00, GreatBaconGamer
Solve for x and y a x= 13.3 y= 16.7 b x= 23.3 y= 12.5 c x= 7.5 y= 16.7 d x=7.5 y= 12.5
Answers: 1
Mathematics, 21.06.2019 21:30, Kizmit1423
How does reflecting or rotating a figure change the interior angles of the figure?
Answers: 2
Many companies are increasingly concerned about computer security and employees using their computer...
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