Question 16 of 40 (PLEASE ANSWER ALL QUESTIONS OR NONE AT ALL) TABLE 13-2 A cand
ID: 3249000 • Letter: Q
Question
Question 16 of 40 (PLEASE ANSWER ALL QUESTIONS OR NONE AT ALL)
TABLE 13-2
A candy bar manufacturer is interested in trying to estimate how sales are influenced by the price of their product. To do this, the company randomly chooses 6 small cities and offers the candy bar at different prices. Using candy bar sales as the dependent variable, the company will conduct a simple linear regression on the data below:
D. 0
Question 19 of 40
TABLE 14-2
A professor of industrial relations believes that an individual's wage rate at a factory (Y) depends on his performance rating (X1) and the number of economics courses the employee successfully completed in college (X2). The professor randomly selects 6 workers and collects the following information:
Referring to Table 14-2, suppose an employee had never taken an economics course and managed to score a 5 on his performance rating. What is his estimated expected wage rate?
D. 10.90
Question 21 of 40
Question 22 of 40
Question 23 of 40
An Internet service provider is interested in testing to see if there is a difference in the mean weekly connect time for users who come into the service through a dial-up line, DSL, or cable Internet. To test this, the ISP has selected random samples from each category of user and recorded the connect time during a week period. The following data were collected:
Based upon these data and a significance level of 0.05, which of the following statements is true?
Question 24 of 40
Consider the partially completed one-way ANOVA summary table.
The F-test statistic for this ANOVA procedure is ________.
Question 25 of 40
Nintendo Sony would like to test the hypothesis that a difference exists in the average age of users of a Wii, a PlayStation, or an Xbox console game. The following data represent the age of a random sample of Wii, PlayStation, and Xbox users.
The grand mean for these observations is ________.
Question 26 of 40
Nintendo Sony would like to test the hypothesis that a difference exists in the average age of users of a Wii, a PlayStation, or an Xbox console game. The following data represent the age of a random sample of Wii, PlayStation, and Xbox users.
The test statistic for this hypothesis test would be ________.
Question 27 of 40
A researcher with the Ministry of Transportation is commissioned to study the drive times to work (one-way) for U.S. cities. The underlying hypothesis is that average commute times are different across cities. To test the hypothesis, the researcher randomly selects six people from each of the four cities and records their one-way commute times to work. Refer to the below data on one-way commute times (in minutes) to work. Note that the grand mean is 36.625.
The conclusion for the hypothesis test is ________.
Question 28 of 40
A police chief wants to determine if crime rates are different for four different areas of the city (East(1), West(2), North(3), and South(4) sides), and obtains data on the number of crimes per day in each area. The one-way ANOVA table is shown below.
The p-value for the test is ________.
Question 29 of 40
AutoTrader.com would like to test if a difference exists in the age of three different types of vehicles currently on the road--trucks, cars, and vans. The following data represent the age of a random sample of trucks, cars, and vans.
Using = 0.05, the conclusion for this hypothesis test would be that because the test statistic is
Question 30 of 40
A researcher performed ANOVA using data from a sample of 250 students with GPA as the dependent variable, and discipline (groups are business studies, natural sciences, and social sciences) as factor. ANOVA showed a total sum of squares of 4152 and a mean sum of squares between groups of 100. Based on this information the observed value of the test statistic is _____.
Question 16 of 40 (PLEASE ANSWER ALL QUESTIONS OR NONE AT ALL)
1.0 PointsExplanation / Answer
Q16: Ans is a. 1.66
excel formula= "=VAR.P('PRICE')*6"
Q19: Ans is b. 12.2
formula:
use LINEST function for regression line:
Q21. Ans is b. 0.867
formula: =CORREL(G9:O9,G10:O10)
Q22. ans is d.
using LINEST function in excel we get:
Q23. ans is d.all are true.
we performed 1-WAY ANOVA:
Q24: ans is d. F=3:
Q25: ans is c. 30
taking the average of all the data.
Q26. ans is d.
we performed 1 way ANOVA in excel.
Q27. ans is b:
we performed again 1 way ANOVA:
Q28. ANS is d <0.01:
=F.DIST.RT(9.12,3,20)= 0.0005
Q29. ANS Is b.
Q30. ans is a.:
Formula in excel:
0.616017 1.054353 6.931902 X2 X1 Intercept 12.20367Related Questions
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