Last semester,an experiment was done in class where 40 students were asked to take out all of the coins they had on them. Pennies, nickels, dimes, and quarters (no bills – just coins). The students added it up, and then gave their total (in $).Students were asked to provide their gender. Below is the data from that class session.I want YOU to run the appropriate test on the data using student gender as the independent variable and amount of change as the dependent variable. Do you think one gender had more in money in coins than the other?
Your job is to determine if males have a significantly different total amount in coins than females. As you worked on this problem, be mindful of the eight steps we covered in Chapter 10 (Salkind). Use the data in this table to answer the questions that follow.
Student Gender (M or F) | $ Amount (Total) In Coins | Student Gender
(M or F) |
$ Amount (Total) In Coins | |
Male | .00 | Female | 2.50 | |
Male | .00 | Female | 2.89 | |
Male | .00 | Male | 1.25 | |
Female | .00 | Male | 1.25 | |
Female | .00 | Female | 1.50 | |
Male | .00 | Male | 1.33 | |
Male | .00 | Female | 2.90 | |
Male | .00 | Female | 2.62 | |
Female | 1.00 | Male | 1.00 | |
Female | .87 | Female | 3.10 | |
Male | .93 | Female | 3.15 | |
Male | .50 | Male | 1.50 | |
Female | 1.45 | Male | 1.50 | |
Female | 1.50 | Female | 2.00 | |
Female | 2.10 | Male | 1.60 | |
Male | .75 | Female | 3.25 | |
Male | .89 | Female | 3.90 | |
Female | 2.00 | Male | 1.93 | |
Male | 1.00 | Male | 2.00 | |
Female | 2.32 | Female | 3.78 |
Question 1 2 pts
Select the null hypothesis
Ho: Males and females do not differ in the amount of money they have on them | |
Ho: Males and females will differ in the amount of money they have on them |
Question 2 2 pts
Select the alternative hypothesis
Ha: Males and females will differ in the amount of money they have on them | |
Ha: Males and females will not differ in the amount of money they have on them |
Flag this Question
Question 3 2 pts
What is the risk level?
.05 | |
.5 |
.25 | |
-.05 |
Question 4 2 pts
What is the best statistical test to use?
t-Test for independent samples | |
correlation test |
z-test | |
t-Test for dependent samples |
Flag this Question
Question 5 2 pts
Compute the test statistic. Which of the following is the value of the test statistic you computed?
-3.51 | |
-3.56 |
-3.49 | |
-3.55 |