An educational psychologist would like to determine whether access to computers has an effect on grades for high school students. One group of n = 16 students has
home room each day in a computer classroom in which each student has a computer. A comparison group of n = 16 students has home room in a traditional
classroom. At the end of the school year, the average grade is recorded for each
student. The data are as follows:
Computer Traditional
M = 86 M = 82.5
SS = 1005 SS = 1155
a. Is there a significant difference between the two groups? Use a two-tailed test
with a = .05.
b. Compute Cohen's d to measure the size of the difference.
c. Write a sentence that demonstrates how the outcome of the hypothesis test and
the measure of effect size would appear in a research report.

ummm seems that u didnt post the attachement !

the degrees would remain the same ( the number to the left of the decimal point.

the multiply the decimal by 60 to get the minutes and use the numbers to the left of the decimal point.

then multiply the decimal portion of that by 60 for the seconds and round off as needed.

39 .956652

the 39 remains the degrees.

the minutes = 0.956652 x 60 = 57.39912

the minutes = 57

the seconds = 0.39912 x 60 = 23.95 = 24 ( rounded to nearest tenth)

so 39.956652 = 39 degrees, 57 minutes and 24 seconds

-75.159809

the -75 remains the degrees

the minutes = 0.159809 x 60 = 9.58854

the minutes = 9

the seconds = 0.58854 x 60 = 35.31, rounded to nearest tenth = 35.3 seconds

so -75.159809 = -75 degrees, 9 minutes and 35.3 seconds.

the first coordinate is north or south, since it it positive it is north.

the second number is east or west, because it is negative it is west.

39 degrees, 57 minutes and 24 seconds n

-75 degrees, 9 minutes and 35.3 seconds w

(5x-1)^2= (5x)^2-2(5x)×1+(1)^2=25x^2-10x+1