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MA260C Assignment 8 Nicole Davis AC1703436.docx

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Running Head: Assignment 08 Nicole Davis AC1703436 MA260 Statistical Analysis I Assignment 08 08/31/2017 Assignment 08 Nicole Davis Ashworth College
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Assignment 08 Directions: Be sure to save an electronic copy of your answer before submitting it to Ashworth College for grading. Unless otherwise stated, answer in complete sentences, and be sure to use correct English, spelling, and grammar. Refer to the "Assignment Format" page located on the Course Home page for specific format requirements. NOTE: Show your work in the problems. 1. A recent article in the Myrtle Beach Sun Times reported that the mean labor cost to repair a color television is $90 with a standard deviation of $22. Monte’s TV Sales and Service completed repairs on two sets this morning. The labor cost for the first was $75 and it was $100 for the second. Compute z values for each and comment on your findings. Work: For x = 75z = (75-90)/22 = -15/222) For x = 100z = (100-90)/22 = 10/22 = 5/11 Answer: z-values are -15/22 and 5/11, the first sore is negative because 75<90 and the
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