A researcher reports t(15) = +0.25, p > .05 for a repeated-measures research study. The mean sample difference score for the sample was M D = 1. Which of the following is the value for Cohen’s d? a. d = .12 b. d = 1.00 c. d = .25 d. d = .06

A researcher reports t(15) = +0.25, p > .05 for a repeated-measures research study. The mean sample difference score for the sample was M D = 1. Which of the following is the value for Cohen’s d? a. d = .12 b. d = 1.00 c. d = .25 d. d = .06

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

See similar textbooks

Similar questions

Vivian surveyed 3 of her classmates to find out the amount of time they spend on the cell phone on the weekend. The hours spent were 2. 7hr, 5.1 hr, and 4.2 hr, with the mean of 4 hours. Calculate the standard deviation using the following formula for variance: %3D n-1 Note: All the letters highlighted in blue need to be filled in with your answers. All values must be rounded to the nearest tenth (eg. 3.0, not 3 nor 3.02) Race time X,- (X-) in hours For For X2 For X3 Write the values in each of the blanks above (note-for i, use the same order as values given in the problem). What is the value of the numerator 2X- H)*? Write the value here Now calculate the denominator n-1. The value is and the standard deviation Finally, calculate the variance
Two accounting professors decided to compare the variance of their grading procedures. To accomplish this, they each graded the same 10 exams, with the following results: Mean Grade Standard DeviationProfessor 179.322.4Professor 282.112.0 What are the degrees of freedom for the numerator of the F ratio? Select one: a. 8 b. 9 c. 10 d. 18
18. We want to study the relationship between size (sq. m) and the price of houses. We randomly chose 25 houses and recorded the size and price of them. The excel output for the data is given below: Regression statistics: Multiple R: 0.586378154 R Square: 0.343839339 Adjusted R Square: 0.315310615 Standard Error: 34761.73162 Observations: 25 df SS MS F SignificanceF Regression 1 14563843876 1.46E+10 12.05239 0.0020659 Residual 23 27792693660 1.21E+09 Total 24 42356537536 Coefficients StandardError T stat P-value lower95% upper95% Lower95.0% upper95.0% Intercept 189769.0334 28557.61831 6.645128 8.85E-07 130693.1 248844.968 130693.1 248844.968 Size (sq.meter) 444.1951525 127.9490924 3.471655 0.002066 179.51229 708.878016 179.51229 708.878016 Write down your answers to (a)-(c) in the box below. Give your answers to 4 decimal places. Write down 95% confidence interval for the slope of the relationship between price and size. We want to…
The percentage of men with cholesterol levels above 220 is closest to…
A distribution of scores has no mode and the same median and mean values. This indicates that the
Mr. Jackson is looking at test scores for his Algebra 2 class. The scores on the Unit 2 Test follow a normal distribution, with a mean of 89 and a standard deviation of 3. What percent of learners scored 86 or better?
You are a consumer psychologist interested in holiday spending. A national census reports that the American family spent an average of u = $81 for Halloween candy and costumes last year. A sample of N = 16 families this year produced a mean of $85 with s = 20. Using at-test single sample, what is your df?
4. A study was conducted to investigate the relationship between the size of a house (in square feet) and the selling price of a house (in dollars). The response variable is price in dollars, and we want to study if the covariate of the square footage helps explain the response. A random sample of 522 houses was used, and the linear regression output from R is below. price sqft, data = house) 1m (formula = Coefficients: Estimate Std. Error t value Pr(>|t|) (Intercept) -81432.946 11551.846 -7.049 5.74e-12 *** sqft 158.950 4.875 32.605 < 2e-16 *** Residual standard error: 79120 on 520 degrees of freedom Multiple R-squared: 0.6715, Adjusted R-squared: 0.6709
A researcher found that the two groups (n=25 in each group) they tested were significantly different from each other with a t-value of 2.91, which has a corresponding p-value of p=.06. For this study, report the statistics in APA format.
A standardized math test of fifth grade students produces a mean ?μ = 100 with a ?σ = 18. A sample of n = 36 students participated in "boost" training for their math skills. The sample M = 104 with S = 24. Did this "boost" training significantly improve students' math performance? Use ?α = .01.
The percentage of scores falling below a z-score of .65
What provides a measure of the variance caused by random, unsystematic differences? a. the error term b. the F ratio c. MS d. SStotal