A test measures an individual\'s level of computer anxiety, on a scale from 20 (

Question

A test measures an individual's level of computer anxiety, on a scale from 20 (no anxiety) to 100 (highest level of anxiety), with the accompanying findings. One of the objectives of the study was to determine whether there is a difference in the level of computer anxiety experienced by female and male business students.

a. At the 0.05 level of significance, is there evidence of a difference in the mean computer anxiety experienced by female and male business students?

Let population 1 be the computer anxieties experienced by males and let population 2 be the computer anxieties experienced by females.

What is the t test statistic and critical values . Please show work

     Males                     Females

X            40.68                          35.83

S               13.13                         9.77

N               105                                 72

Explanation / Answer

Test Statistic = (40.68-35.83)/Sqrt((13.13*13.13/105)+(9.77*9.77/72)) = 2.815

Critical values at degree of freedom = Min(72-1,105-1) = 71 and 5% level

So, Critical value are -1.994, 1.994

Since, test statistic is greater than 1.994, we reject the null hypothesis , so there is sufficient evidence that there is a difference

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