For each of the studies described in questions 4a) and 4b), indicate the appropriate statistical test...
Fantastic news! We've Found the answer you've been seeking!
Question:
Transcribed Image Text:
For each of the studies described in questions 4a) and 4b), indicate the appropriate statistical test for analyzing the relationship between the variables. Assume that the underlying assumptions of the tests have been satisfied. a) A researcher tested the relationship between college students' need for achievement as assessed on a 20- item test and thcir grade point averages. Explain your decision. b) A consumer psychologist studied the relationship between gender and preference for Ford, Chevrolet, and Chrysler cars. One hundred men and 100 women were interviewed and asked which make they preferred. Explain your decision. c) A person who claims to have psychic powers tries to predict the outcome of a roll of a die on each of 100 trials. He correctly predicts 21 rolls. Using an alpha level of 0.05 as a criterion, what should we conclude about the person's claim? (5 marks) [5 marks) (10 marks) For each of the studies described in questions 4a) and 4b), indicate the appropriate statistical test for analyzing the relationship between the variables. Assume that the underlying assumptions of the tests have been satisfied. a) A researcher tested the relationship between college students' need for achievement as assessed on a 20- item test and thcir grade point averages. Explain your decision. b) A consumer psychologist studied the relationship between gender and preference for Ford, Chevrolet, and Chrysler cars. One hundred men and 100 women were interviewed and asked which make they preferred. Explain your decision. c) A person who claims to have psychic powers tries to predict the outcome of a roll of a die on each of 100 trials. He correctly predicts 21 rolls. Using an alpha level of 0.05 as a criterion, what should we conclude about the person's claim? (5 marks) [5 marks) (10 marks)
Expert Answer:
Related Book For
Elementary Statistics A step by step approach
ISBN: 978-0073386102
8th edition
Authors: Allan Bluman
Posted Date:
Students also viewed these mathematics questions
-
Question 3 Expected sales for the upcoming five months (March July, 2023) in "GBB" company is as follows. Months March Amount RO 40,000 May 50,000 June 56,000 Sales policy is to receive 35% of the...
-
For each of the studies in Exercise 17, suggest possible confounding variables.
-
Using Table 6.1, write an equation for each of the following substitution reactions: a. p-methylbenzyl chloride + sodium acetylide b. n-propyl bromide + sodium cyanide c. 2-iodopropane + sodium...
-
In Exercises determine which of the integrals can be found using the basic integration formulas you have studied so far in the text. (a) (b) (c) S x - 1 dx
-
Which is not an ethical obligation of a statistician? Explain. a. To know and follow accepted procedures. b. To ensure data integrity and accurate calculations. c. To support client wishes in drawing...
-
A machine is producing metal pieces that are cylindrical in shape. A sample of pieces is taken and the diameters are 1.01, 0.97, 1.03, 1.04, 0.99, 0.98, 0.99, 1.01, and 1.03 centimeters. Find a 99%...
-
Otis Carpenter opened a medical practice in Alexandria, Virginia. Requirement 1. Record the preceding transactions in the journal of Otis Carpenter, M.D., RC. Include an explanation with each entry....
-
A gold-mining firm is concerned about short-term volatility in its revenues. Gold currently sells for $300 an ounce, but the price is extremely volatile and could fall as low as $280 or rise as high...
-
Draft a closing argument based on the facts below Tim has commenced an action for battery against Dylan, alleging injuries suffered from stab wounds inflicted by Dylan, and seeking damages. At the...
-
Blair Jokinen is a sales manager for Pearson, one of the top publishing companies in the world. Blair manages 40 sales representatives who visit college professors in Europe. On Saturday mornings,...
-
Portfolio Ahas $65 million in stock and $45 million in bonds. Portfolio B has $40 million in stock and $70 million in bonds. Portfolio manager A makes a swap with portfolio manager B to exchange...
-
Thomas recently signed an agreement for a serverless computing environment where his organization's developers will be able to write functions in Python and deploy them on the cloud provider's...
-
Assume that actual sales for the month total $ 7 5 0 , 0 0 0 as planned; however, actual sales by product are: White, $ 3 0 0 , 0 0 0 ; Fragrant, $ 1 8 0 , 0 0 0 ; and Loonzain, $ 2 7 0 , 0 0 0 ....
-
My chosen project is Beat the Clock: Time Management Training Can Improve Productivity and Morale by Helping Employees Balance Work and Family byKathryn Tyler Address the following items, which will...
-
A gas station owner finds that for every penny increase in the price of gasoline, she sells 1657 fewer gallons per week. Using x to represent the number of penny changes in price, create an equation...
-
Build a boosting model to predict NPV. In the gbm function, set distribution="gaussian", n.trees=5000, interaction.depth=4, shrinkage=0.0001, cv.folds = 6. Just before the function call set the seed...
-
1. Briefly discuss what marketing analytics software is and how companies use it to optimize their return on investments on their website and social marketing efforts. 2. Define and describe the...
-
Calculate Total Contribution Margin for the same items. Total Revenue Total Variable Costs Total Contribution Margin $50.00 a. $116.00 $329.70 b. $275.00 $14,796.00 $7,440.00 c. $40,931.25 d....
-
The average sales price of new one-family houses in the Midwest is $250,000 and in the South is $253,400. A random sample of 40 houses in each region was examined with the following results. At the...
-
The average age of U.S. astronaut candidates in the past has been 34, but candidates have ranged in age from 26 to 46. Use the range rule of thumb to estimate the standard deviation of the applicants...
-
Competency test for high school sophomores has a normal distribution with a mean of 400 and a standard deviation of 100. a. The top 3% of students receive $500. What is the minimum score you would...
-
Find the z-scores that bound the middle 70% of the area under the standard normal curve.
-
Find the z-scores that bound the middle 80% of the area under the standard normal curve.
-
Find the z-scores that bound the middle 98% of the area under the standard normal curve.
Study smarter with the SolutionInn App