What is the Chi squared (χ2) statistic in the follow statistical statement χ2 (2, N = 67) = 6.72, p = .021?a) 6.72b) 67c) 2d) .21

Given info: The Chi squared (χ2) statistic is χ2 (2, N = 67) = 6.72, p = .021. Chi-square test: It…

Answered: What is the Chi squared (χ2) statistic…

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 simple random sample of 100 observations was taken from a large population . The sample mean and the variance was determined to be 80 and 144 respectively . The standard error of the sample mean is A) 0.80 B) 1.44 C) 1.20 D) 14.4
Pls help ASAP ON ALL PARTS
1. Scores on a particular test are normally distributed in the population, with a mean of 100 and a standard deviation of 15. What percentage of the population has scores: a) between 100 and 125? b) between 82 and 106? c) between 110 and 132? d) above 132? e) equal to 132? Answer: A)45.25 B)54.03 C)23.48 D)1.66 E)0
7) At one college, GPA's have a distribution that is unimodal and symmetric with a mean of 2.6 and a standard deviation of 0.5. What is the range of GPA's from one standard deviation below the mean to one standard deviation above the mean? A) 2.6 to 3.1 B) 2.1 to 3.1 C) 0.5 to 3.1 D) 2.1 to 2.6
A) What standard normal z-score is associated with the bottom (or lowest) 2%? The probability is 0.02 that a standardized normal variable takes a value below what particular value of z? B) What standard normal z-score is associated with the upper 99%? The probability is 0.99 that a standardized normal variable takes a value above what particular value of Z? C) What standard normal z-scores contain the middle 90%? The probability is 0.90 that a normal variable takes a value within how many standard deviations of its mean?
What is the area of -0.45 in the standard normal distribution? A.) 1 B.) 0.5 C.) 0.6736 D.) 0.3264 E.)0 F.) None of the above, as it depends on the situation
help with 2a-f
Diastolic blood pressures are assumed to follow a normal distribution with a mean of 85 and a standard deviation of 12. What proportion of people has diastolic blood pressures less than 80? A)0.661 B)0.338 C)0.50 D)0.75
The scores of the students in the final examination are normally distributed with a mean of 75 and a standard of 5. Find the percentage of students who scored between 73 and 83? A 44.52% B) 60.06% c) 28.98% D) 15.54%
Assume the scores on a trivia challenge test are normally distributed with a mean μ = 76 and standard deviation of o = 6. a) Alisha received a score of 80. What is the z-value of Alisha's score? (Round to two decimal places). z= b) What percentage of scores fall between 64 and 88? c) What percentage of scores are between 70 and 88? d) What percentage of scores are below 70? % % % e) Find the first quartile of the data set. (Round to one decimal place)
The average score on a communications exam was found to be 82 with a standard deviation of 5 points. Assuming these scores were normally distributed, what is the 10th percentile of these exams? a) 88.4 b) 1.28 c) 75.6 d) -1.28
19 What is the standard z value corresponding to the sample mean x = 90 in a distribution with a population mean of 60 and a standard deviation of 5? a) -10 B) 6 NS) -6 D) 0 TO) 10

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