using SAS 7.4 Four different methods of preparing for a college entrance exam were compared. They arelabeled 'A', 'B', 'C', and 'D'. The following exam scores were obtained for each of the fourprograms:ProgramA560520530525575527580620B565522520530510522600590C512518555502510520516D505508512520543523517Compare the four preparation methods. Use a multiple-comparison method of yourchoice to make pairwise comparisons. Create two contrasts: One to compare methods Aand B to C and D, the other to compare method D to the other three.

Method of Approach1. Understand the Objective:We are comparing four preparation methods (A, B, C,…

Answered: 7.4 Four different methods of preparing…

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018

18th Edition

ISBN:9780079039897

Author:Carter

Publisher:Carter

Chapter4: Equations Of Linear Functions

Section4.5: Correlation And Causation

Problem 11PPS

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I can't understand why the data is the percentage of surveyed parents.
A developmental psychologist who wanted to see if children who started walking earlier performed better in the school divided 30 children into 3 groups: early walkers, middle walkers, and late walkers. At the end of second grade, the psychologist computed a composite school performance score based on teachers' reports. Here is the data: Early walkers: M=2.94 (SD=.61) Middle walkers: M=2.84 (SD=.70) Late walkers: M=2.77 (SD=.64) The psychologist ran an ANOVA and found that F(2,27) = .86. What jumps out at you about these results? Were these significant findings? Can you tell just by comparing the means? What number here tells you if there is the significance? You will have to go to the table to find the cutoff score to finish solving this puzzle.....then discuss this problem amongst yourselves. Note: You're not working anything out; you're just looking at the output I have provided.
ONLY PART C AND D PLEASE!
The Computer Anxiety Rating Scale (CARS) measures an individual’s level of computer anxiety, on a scale from 20 (no anxiety) to 100 (highest level of anxiety). Researchers at a large university administered CARS to 80 business students. One of the objectives of the study was to determine whether there is a difference between the level of computer anxiety experienced by female students and male students. Of the 80 student survey takers, 40 were male, 40 were female. The results are in the table below for statistical analysis of variability between the two samples. All of these analyses are run with a 95% level of confidence. Males Females Sample Mean 40.26 36.85 Sample Standard Deviation 13.35 9.42 Perform the test chosen in part (d) of the previous problem and supply this information: a. What is the value of the test statistic? b. Find the probability of getting these results if there is no difference in anxiety ratings between the…
The Computer Anxiety Rating Scale (CARS) measures an individual’s level of computer anxiety, on a scale from 20 (no anxiety) to 100 (highest level of anxiety). Researchers at a large university administered CARS to 80 business students. One of the objectives of the study was to determine whether there is a difference between the level of computer anxiety experienced by female students and male students. Of the 80 student survey takers, 40 were male, 40 were female. The results are in the table below for statistical analysis of variability between the two samples. All of these analyses are run with a 95% level of confidence. Males Females Sample Mean 40.26 36.85 Sample Standard Deviation 13.35 9.42 (a) Find the difference between these sample means.(b) Find the variance of the male sample.(c) Find the variance of the female sample. (d) Which test should be ran to determine if there is evidence of a difference in computer anxiety…
Mr. James McWhinney, president of Daniel-James Financial Services, believes there is a relationship between the number of client contacts and the dollar amount of sales. To document this assertion, Mr. McWhinney gathered the following sample information. The x column indicates the number of client contacts last month and the y column shows the value of sales ($ thousands) last month for each client sampled. Number of Contacts, x Sales ($ thousands), y 14 24 12 14 20 28 16 30 46 80 23 30 48 90 a. Find the value of correlation coeffecient (r) : b. What is the regression equation : = + x c. Determine the estimated sales if 40 contacts are made.
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. The data collected is reported in the table below. W-Mart Tag URToy 8 5 4 9 4 2 10 6 1 9 3 5 9 5 4 MW = 9 MT = 4.6 MU = 3.2 SSW = 2 SST = 5.2 SSU = 10.8 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? Compute the percentage of variance explained by the group differences for these data. Percentage and…
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 = ?
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).
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