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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The manager of a political party wants to find out the association between the campaign spending (Large, medium and small) and the vote obtained (Majority, Average and minority). Use Chi-squared hypothesis test for association to test that there is an association between the variable in campaign spending and the variable in vote obtained with five percent level of significance. The manager uses MS excel to calculate the Chi-squared stat value and the result is 8.874. Critical value: At 1% = 13.277 :At 5% = 9.488 :At 10% = 7.779 1. State the decision rule 2. Conclusion and decision 3. State the alternative hypothesis and the null hypothesis
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f.
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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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