Question: Refer to Exercise 14.1. After running the pilot study, the researchers conduct a study involving 100 students. Twenty- five students were randomly assigned to each

Refer to Exercise 14.1. After running the pilot study, the researchers conduct a study involving 100 students. Twenty- five students were randomly assigned to each of the four instructional conditions. The data are given here.
a. Conduct an analysis of variance, and summarize your results in an AOV table.
b. Test the research hypothesis that there is a difference in the effectiveness means of the methods of instruction. Use α = .05.
c. Apply a multiple- comparison procedure to determine pairwise differences in the three instructional methods. Use α = .05.
d. Was there significant evidence that all three methods of instruction produced higher mean reasoning scores than the mean reasoning score for the control?

Step by Step Solution

★★★★★

3.43 Rating (156 Votes )

There are 3 Steps involved in it

1 Expert Approved Answer

Step: 1 Unlock

a The ANOVA table is given here b The pvalue for Instruction is 0000 005 which impl... View full answer

Question Has Been Solved by an Expert!

Get step-by-step solutions from verified subject matter experts

Step: 2 Unlock

Step: 3 Unlock

Document Format (1 attachment)

595-M-S-V-A (1749).docx

120 KBs Word File

Students Have Also Explored These Related Statistics Questions!

Refer to exercise 14. Using age, blood pressure, whether a person is a smoker, and any interaction involving those variables, develop an estimated regression equation that can be used to predict...

Refer to Exercise 14.32. Use Tukeys multiple comparison method to test each pair of degree categories (DEGREE) with respect to income (INCOME).

Refer to Exercise 14.41. Use Tukeys Multiple Comparison Method to find which categories of marital status (MARITAL) differ with respect to education (EDUC).

Exercises Chapter 2 2.1 Marginal and conditional probability: The social mobility data from Section 2.5 gives a joint probability distribution on (Y1 , Y2 )= (father's occupation, son's occupation)....

Please read the question Question : What are "spaced practice", "varied practice", and "interleaved practice"? Give a definition for each. Then give an example of each from your own experience as a...

\fThis is an electronic version of the print textbook. Due to electronic rights restrictions, some third party content may be suppressed. Editorial review has deemed that any suppressed content does...

Journal of Autism and Developmental Disorders, Vol. 32, No. 3, June 2002 ( 2002) Descriptive Epidemiology of Autism in a California Population: Who Is at Risk? Lisa A. Croen,1,3 Judith K. Grether,1...

Business Research MethodologyQuestion Bank 1 1. When the marketing department of an organization attempts to determine the amount of time the managers in this department spend at their computers in...

10. An experimenter has some degree of control over the: a. independent variable. b. correlative variable. c. history effect. d. All of the above, if the experiment is conducted properly. 11. If a...

The unadjusted trial balance of Farmer Investment Advisers at December 31, 2016, follows: Adjustment data at December 31, 2016: a. Unearned Revenue earned during the year, $700. b. Office Supplies on...

In a competitive market, the industry demand and supply curves are P = 70 - QD and P = 40 + 2QS, respectively. a. Find the markets equilibrium price and output. b. Suppose that the government...

Who are the target groups of public relations?

Provide examples of performance measures for each Balanced Scorecard dimension relevant to understanding the performance of a coffee shop.

At their installations as chief justice of the United States, the first six chief justices were 44, 56, 51, 45, 59, and 56 years old, respectively. a. Find and interpret (report in context) the mean...

The table shows Minitab descriptive statistics for the weight of some women (weight_f) and men (weight_m), and the self-reported ideal weights for both. a. Subtract the womens mean weight from their...

The table shows Minitab descriptive statistics for the years of education for the fathers and mothers of students in one of the authors statistics classes and in one of her pre-algebra classes....

The investor - developer would not be comfortable with a 7 . 8 percent return on cost because the margin for error is too risky. If construction costs are higher or rents are lower than anticipated,...

The most recent financial statements for Hornick, Inc., are shown here (assuming no income taxes): Assets and costs are proportional to sales. Debt and equity are not. No dividends are paid. Next...

2 5 . If a firm has class A and class B common stock outstanding, it means that A ) each class receives a different dividend. B ) the par value of each class is different. C ) the dividend paid to...