Question

solutions ers autin to the ID # on the title pag s problems in a space provided and write all of clearly. Submit diagrams for hypothesis testing problems and conclusion the results of testing. You may write anywhere on these exam pages. You may a use the accompanying exam book for scrap paper. Put your name on the book hand it in with your test. Each problem holds a seore. Total number of score poi is 100. WRITE ALL OF YOUR SOLUTIONS CLEARLY Good luck 1. A department store, on average, has daily sales of $28176. The standard deviation sales is $1500. On Monday the store sold $34083 worth of goods. Find Monday's score. Was Monday an unusually good day? (Consider a score to be unusual if its Z sco is less than -2.00 or greater than 2.00). (5 points) B) 1.87, No C) 2.74, Yes D) 3.94, Yes A) 2.95, Y 2. A computer operator must select 5 jobs from 12 available jobs waiting to completed. How many different combinations of 5 jobs are possible? Show the result of calculations and circle one of the multiple choice answers. (5 point A) 95040 B)495 C)792 D) 60

Answer 1

1)

Mean = = 28176

Standard deviation = = 1500

x = 34083

Yes, it is unusual because the z score is greater than 2.

Therefore correct option is D) 3.94, Yes

2) Combinations are

Therefore correct option is C) 792