No Spad When selecting a computer game an important aspect to consider is the ti

Question

No Spad When selecting a computer game an important aspect to consider is the time required to learn how to play it. The marketing director of Nintendvs Inc, hires you as a statistician to design a test based on average learning time. He is pretty sure games A, B and C require the same learning time but wants statistical support to his belief. As a statistician you design a Fisher test and survey 4 customers on game learning time for each of the 3 games. The sample mean learning time for each game are below: The MSE value and degrees of freedom are 2.2 and 9 respectively. Allow for 90% confidence. Games Sample means 4 2 6.8 7.3 a What is the critical value for the given level of confidence? 1.83 1.96 1.782 b. What is the test statistics for means A & B.Z (allow for a difference in values of + or 3.5 1.8

Explanation / Answer

a)test statistic t for 0.1 level and 9 degree of freedom =1.83

b)test stat t =(difference)/(2*MSE/4)1/2 =|(6.8-9)/1.0488|=2.1

c)test stat =0.4

d)1.6

e)reject ; accept; accept

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