Statistics and Computer Programs
Project description
Statistics and Computer Programs
OBJECTIVES
Enter data into Excel
Learn to use the functions of Excel
Use Excel to calculate and interpret means, standard deviations, and z-Scores
Use Excel to calculate and interpret t, F, and r
Use Excel to calculate a regression equation
Step 1 Complete the following tasks.
Perform the following activities using a program such as MS Excel. Keep all calculations within one file. You may use separate worksheets within the same file, though.
1.Open a worksheet and enter in the following data:
Years of
EducationExpenditures
on Books
135
1745
90
1118
1525
124
1310
1835
1615
100
a.Using this data, report the descriptive statistics for each variable. Report the mean and the standard deviation for each variable.
b.Determine if there is a relationship between the two variables. Be sure to determine if the relationship is significant.
c.Using this same data, report the regression equation that could be used to make predictions about the amount of money spent on books when the number of years of education is known.
2.You are a researcher who is interested in studying the effects of Prozac on children. You equally divide 40 young rats into two groups: one that receives no Prozac and one group that receives one dose of Prozac. You want to determine if there is a significant effect of Prozac on learning and memory. You collect the number of errors on a task for each subject, which is listed below. Higher numbers of errors indicate lower levels of learning and memory. You analyze the data using a software program to determine if groups are significantly different from one another.
Control GroupProzac Group
512
27
610
312
214
510
39
111
26
111
29
711
311
512
515
410
312
512
411
56
