-ECON-20a x C Search Textbook Not Secure | www.macmillanhighered.com/launchpad/p

Question

-ECON-20a x C Search Textbook Not Secure | www.macmillanhighered.com/launchpad/psbe4e/803 1605 × Assignment 2 - Part A Done Assignment 2-Part A 8. Below are the total scores of 10 students in an introductory statistics course: 68 54 92 75 73 98 64 55 80 70 Previous experience with this course suggests that these scores should come from a distribution that is approximately Normal with mean 70 and standard deviation 10. Using these values for and , standardize the scores ofthe last 5 students. (Fill in the blanks below and give your answers to 1 decimal place.) 64 55 80 0 98 Actual Standardized

Explanation / Answer

Standardization of score requires that we subtract the mean from the score and then weigh this difference (divide) by the standard deviation that is, Standardized score=(score-mean)/standard deviation.

Score Standardized score 98 (98-70)/10=2.8 64 (64-70)/10=-0.6 55 (55-70)10=-1.5 80 (80-70)/10=1 70 (70-70)/10=0

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