An industrial psychologist has designed a study to evaluate the effects of a new profit-sharing incentive plan on productivity for a local organization in New York.The company has 8 teams. The number of units produced by each team during the eight week prior to the beginning of the new incentive plan and for eight weeksafterward is presented below. Test whether the new incentive plan had an effect on productivity at a significance level .05 (non-directional test) by answering thequestions below.BEFORE: 85, 79, 78, 80, 81, 108, 76, 67AFTER: 89, 85, 83, 75, 87, 106, 80, 731) What is the appropriate type of test for this question? Why2) Present the hypotheses for the test (3) Other than the two assumptions that are common to most hypotheses tests, what additional assumption is made for this question? Provide that assumption only4) Provide the df and the critical value for this test5) What are the sum of difference scores AND the sum of squared difference scores?6) Provide the t observed (you don't have to show the process of computation)7) What are the decision and the interpretation for the test?.

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Answered: An industrial psychologist has designed…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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A dental supplies distributor ships a customer of 50 boxes of product A, 30 boxes of B, 60 boxes of C, and 20 boxes of D. The unit shipping costs (dollars per box) for the four products are $5, $2, $4, and $10 respectively. What is the weighted mean for shipping cost per unit?
A consumer group wanted to determine if there was a difference in customer perceptions about prices for a specific type of toy depending on where the toy was purchased. In the local area there are three main retailers: W-Mart, Tag, and URToy. For each retailer, the consumer group randomly selected 5 customers, and asked them to rate how expensive they thought the toy was on a 1-to-10 scale (1= not expensive, to 10 = very expensive). The toy was priced the same at all retail stores. Compute the percentage of variance explained by the group differences for these data. Q: Percentage and variance explained = ?
Q: a.Twelve homes in one city were underinsured on the average of $5,000, 24 homes in another city were underinsured on the average of $6,200 and 14 homes in a third city were underinsured on the average of $6,900. Find the overall average amount of the underinsured homes. b. A writer earns a mean average of $15.00 per hour for 4 hours of work, $17.50 per hour for 2 hours of work, $13.33 per hour for 3 hours and $14.00 per hour for 1 hour. What is the overall average earning per hour of the writer?
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Cris Turlock owns and manages a small business in San Francisco, California. The business provides breakfast and brunch food, via carts parked along sidewalks, to people in the business district of the city. Being an experienced businessperson, Cris provides incentives for the salespeople operating the food carts. This year, she plans to offer monetary bonuses to her salespeople based on their individual mean daily sales. Her first task is to see if there is a significant difference in the mean daily sales among the different salespeople. She chooses a "sample" of days for each salesperson and records the sales for each day. She then runs a one-way, independent-samples ANOVA test to determine whether or not she can conclude that at least one salesperson's performances is significantly different from the others. (Otherwise, she'll split the bonuses evenly among all the salespeople.) In her ANOVA, the "groups" are the different salespeople, and the variable of interest is the daily sales…
A consumer group wanted to determine if there was a difference in customer perceptions about prices for a specific type of toy depending on where the toy was purchased. In the local area there are three main retailers: W-Mart, Tag, and URToy. For each retailer, the consumer group randomly selected 5 customers, and asked them to rate how expensive they thought the toy was on a 1-to-10 scale (1= not expensive, to 10 = very expensive). The toy was priced the same at all retail stores. 1. What kind of statistical test should be used to test the consumer group's research goal, assuming that the researcher wanted to use the 1-to-10 scale as a numerical interval measure? A. Repeated-measures t-test B. One-way Independent Measures ANOVA C. Repeated-measures ANOVA D. Independent-measures t-test 2. State the hypothesis that aims to test the consumer group’s research goal (i.e., what is H0 and HA).
You are testing the claim that the proportion of men who own cats is larger than the proportion of women who own cats.You sample 200 men, and 20% own cats.You sample 120 women, and 75% own cats. Find the test statistic
solve for UCLp
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