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Find the critical value and test statistic value follows normal distribution.

1. Using z-table (Table E), find the critical value (or values) for a a = .14 right-tailed test.

A) .1406

B) 1.08

C) 0.0557

D) 1.54

2. At a certain university, the average cost of books per student was $400 per student last semester. In a sample of 40 students this semester, their average cost was $430 with a standard deviation of $80. The Dean of Students believes that the costs are greater this semester. What is the test value for the hypothesis?

1) 15.00

2) 2.37

3) 0.38

4) 0.75

Statistics and Probability, Statistics

  • Category:- Statistics and Probability
  • Reference No.:- M922060

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