Assume that adults have 1Q scores that are normally distributed with a mean of 96 and a standard deviation 23.4. Find the first quartile Q which is the IQ scoreseparating the bottom 25% from the top 75%. (Hint: Draw a graph.)The first quartile is(Type an integer or decimal rounded to one decimal place as needed)

here use standard normal distribution table for z score for 0.25

Answered: The first quartile is

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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Find the critical values X7p and X2, for an 80% confidence when the sample size is 51.
f.
A repeated-measures ANOVA was calculated with df = 1, 14. If the same data were analyzed with a repeated-measures t test, how many degrees of freedom would be used with the t statistic?
Suppose a biologist is studying the population of fish in freshwater lakes. He collects data on the number of different species of fish found in 20 lakes. The boxplot displays the results of the study with species of fish in intervals of 50. 100 150 200 250 300 350 400 450 500 550 600 Number of species of fish What is the value of the upper quartile for the data set. Round values to the nearest 25 species.
The SSRUR = 161.9, SSRR = 260.6, number of restrictions = 2, n = 89, and there are 8 right hand side variables. Calculate the F statistic.
The following data show the number of laps run by each participant in a marathon: 52, 48, 67, 48, 34, 58, 47, 51, 62, 46 and 38. Compute the first quartile, the third quartile and the interquartile range.
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