Thirty-two different video games showing alcohol use were observed. The duration times of alcohol use (in seconds) were recorded. When using this sample for a t test of the claim that the population mean is greater than 77 sec,what does df denote, and what is its value?What does df denote?OA. The number of degrees of freedomO B. The sample sizeO C. The sample standard deviationO D. The test statisticThe value of df is .(Type an integer or a decimal. Do not round.)Activate WindowsGo to Settings to activataWInooweNextStatcrunch3:58 PMo 耳局11/29/20212)Type here to search4+144%23467.00R.TLO%24

Given information is 32 video games showing alcohol use were observed df = degree of freedom

Answered: Thirty-two different video games…

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 researcher thinks that how often someone reports visiting a science museum in a year is different for people with children and people with at least one child. They get the following output: Group Statistics Std. Std. Error Respondent's children Visits to No children N 797 Mean Deviation Mean 0.27 1.077 0.038 science museum 1 or more children 2062 1.65 4.997 0.969 Independent Samples Test Levene's Test for Equality of Variances t-test for Equality of Means F Visits to Equal 4.492 Sig. 0.034 -1.231 t df 2857 Sig. (2-tailed) 0.218 science museum variances assumed Equal -1.979 2067.380 0.048 variances not assumed 1. What is the research hypothesis? Is this one-tailed or two-tailed? (note how the problem is worded to indicate if it is one or two tailed)
An Excel assignment counts for 0-10 points. The scores in a class of 12 students are recorded as follows:1 5 5 6 7 7 8 8 8 9 10 10 What is the deviation of the score 10 from the mean in 13a (recall that this involves a subtraction of the mean from the particular score)? I think I got answer but want to check.
The standard deviation of the scores: 2, 1, 1, 8 is O 1.71 2 2.92 O.8.5
Calculate the mean deviation and its coefficient both from mean and median for the following. Marks: (0-20 20-40 40-60 60-80 80-100 o. of Students : 10 16 30 32 12
17
Scores on an aptitude test are normally distributed with a mean of 960 and standard deviation of 120. Use the Cumulative Z-Score Table to answer the following questions. Write your answer rounded to the nearest whole number. If 1,570,000 students take the test.. how many would you expect to score above 1224? students ...how many would you expect to score above 972? students ...how many would you expect to score between 972 and 1224? students
i need the answer quickly
When calculating the test statistic for a one sample t test, the denominator term in the formula is __________ a. the estimated SEM b. the estimated standard error of mean differences c. the mean difference d. the deviation score
I need help with this question :) Here are the mean and Standard Deviation for both men and women: Men: Mean 69.0 Standard Deviation: 2.8 Women: Mean 63.6 Standard Deviation: 2.5 Tall Poppies International is a group for vertically gifted individuals (tall people). To join, a man must be at least74 inches tall, and a woman must be at least 70 inches tall.a. What percentage of men are eligible for membership?b. What percentage of women are eligible?c. Are the height requirements fair for men and women?
How can I analyze these graphs?
Lecture(10.8): The Peabody Picture Vocabulary Test has a standard score mean of 100 and a standard deviation of 15. You tested a class of grade 2 students wonderinf if these scores would be different from the population. After testing this hypotheses you decided to continue looking at this data to determine if there are any group differences based on birth order. You group the children the on whether they are the oldest chlid, middle child, or the youngest child. Here is the data based on grouped information. Oldest child: 87 84 98 104 106 91 96 92 Middle child: 65 74 62 60 73 64 71 78 Youngest child: 115 84 85 83 95 94 108 102 89 Test the hypotheses at (alpha=0.05) level of signifance using the 5 step procedure.Make sure to clearly state the null and alternative hypotheses.Round your answer to 2 decimal. You are encouraged to use the following table to help you…
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