Information You participated in the \"facial recognition lab\". That exercise is

Question

Information You participated in the "facial recognition lab". That exercise is the basis for the mini lab report. At the end of the exercise you were give a number of "hits" which is operationally defined as the number of correct responses The data below is your data set for your mini lab. For this assignment, you are the researcher. You gave the facial recognition lab to 40 students, 20 males and 20 females. The data set below contains the number of correct hits for each subject. Complete the calculations below based on the data provided.

Explanation / Answer

It is a unpaired t test for two samples. Sample one has 20 males and sample two has 20 females

so, we have n1 = 20 and n2 = 20

we know the formula for degree of freedom for unpaired t test for two sample is given as

degree of freedom = n1 + n2 - 2

putting the value of n1 and n2, we get

degree of freedom = 20 + 20 - 2 = 40 - 2 = 38

so, the required degree of freedom is 38

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