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****Show all work please, no exel!!!! 1. Calculate a t-test for independent samples on the following...

****Show all work please, no exel!!!!

1. Calculate a t-test for independent samples on the following data. What is the value of t obt?

group 1 : 45,50,55,60,65

group 2: 60,70,80,90,100

2. The 95% confidence interval of the mean for mean = 13, s = 1.6 and N = 21 is:

3.

  1. Chi-squared :

                                X Y Row Marginals

A: 60, 30, 90

B: 18, 40, 58

Column Marginal: 78, 70, 140

Math   Statistics-And-Probability   
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Answer #1

1. Let denote the means for Group 1 and Group 2 respectively.

2.

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