Question

Find the standardized test statistic t for a sample with n = 10, = 16.5, s...

Find the standardized test statistic t for a sample with n = 10, = 16.5, s = 1.3, and a=0.05 if Ho=u ≥ 17.4 Round your answer to three decimal places.
   A.   -2.189
   B.   -2.617
   C.   -3.010
   D.   -3.186

Math   Statistics-And-Probability   
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Homework Answers

Answer #1

Solution :

This is the right tailed test,  

The null and alternative hypothesis is ,

H0 :   = 17.4

Ha :    17.4

Test statistic = t =

= ( - ) / s / n

= (16.5 - 17.4) / 1.3 / 10

Test statistic = t = -2.189

correct option is = A

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