nad ivdD add dinide (6) Which of the measures lor the cesater can be sed for qua

Question

nad ivdD add dinide (6) Which of the measures lor the cesater can be sed for qualitative data (T) la sherund-Int dstribetions, what i most freqgurnaly the relationship of the usean, median, and (8) Which grade is better? A 78 on test I whose mean is 72 and standard deviation is 6.5or am (R the median (C) thr le (D) the midrange me (E) loon mode (A) mean > median > mode (D) mode median meas (E) men > mode > median meas> mode (C) mode > meanmedian 83 on test I1 whose mean is 77 and deviation is 8.4 (A) 78 on test 1 (B) 72 on test 1 (63 on test I1 (D) 77 on test II (E) cannot be compared Use the following data for questions 9-10. A random survey was conducted to determise the that the mean moakhly cost of as was $125, winh a standard deviation of $10 Suppose the distribution is bell-shaped ad symeric cost of residential gas heat Analysis of the survey resulits indicated (9) What homes will have a mosthly bill of more than $115 (C) 68% (D)84% (D) 84% I. Short-Answers-Instructions Give a brief answer to each questioe with clear reasonine (E) 97 (10) What percent of boases will have a mothly bill of (A) 34% than $125 5% (B) SO% (C) 68% a statistics test have a mean of 70 and a stasdlard deviation of 20 Is a score of 40 (1) Scoces on statistics ussasually low why or why not? ause whon average andd divide tb t of sudents (2) When author Shere Hixe wrote Women and Love: A Chitrel Rerolution m she drew her conchasions based on 4500 reples tbat she recelived after mailing 100000 various women's group. Are her ecactusioas likely to unstionaires to he sense thai they can be be valld in t applied to the peneral populatiu of all wa wly or wiy sotyes (3) The thirdquarte students had SATscores higher than 60?-4.3 of the SAT scoes of 64 randomly selected hight school ssp 64 had ,6A., How many of the Colts recently won the Super Bowl, the numbers the jerseys of the 1,5019,-. 10 (listed in the alphaletral order of the player. ) wunbers? why oe why not? Does it make sense to calculate the mesn of those & of th st i 125. already putttemin orden. (5) I the meas weight of 12 students is 120 58 and the mean wight what is the mean welght for the remaining 4stts in the goup

Explanation / Answer

6)

If the data being analyzed is qualitative, then the only measure of central tendency that can be reported is the mode

7)

Typical property of data skewed to the left
Of the three measures of central tendency, the mode will be the greatest, the mean will be the least, and the median will be in between.

This relationship is summarized as follows:
mode > median > mean

8)

z-score for test 1
= (78 - 72)/6.5
=0.923

z-score for test 2
= (83 - 77) / 8.4
= 0.7142
higher the z-score, better the performance

test 1 - better performance

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