>Chapter 2 Measures of Center and Spread com/courses/26867/assignments/742814?module_item_id=2191066 Due Sunday by 11:59pm Points 17 Submitting an external tool Chapter 2 Measures of Center and Spread Progress saved Done Score: 11.6/17 13/17 answered Question 14 For a 4-unit class like Statistics, students should spend average of 12 hours studying for the class. A survey was done on 21 students, and the distribution of total study hours per week is bell-shaped with a mean of 12 hours and a standard deviation of 2.5 hours. Use the Empirical Rule to answer the following questions. a) 68% of the students spend between hours and hours on Statistics each week. b) 95% of the students spend between hours and hours on Statistics each week. :) 99.7% of the students spend between hours and hours on Statistics each week. Question Help: M Message instructor Submit Question O 16' A hpveb... From IE Chapter 2 Measures of Center and Spread c.instructure.com/courses/26867/assignments/742814?module_item_id=2191066 The graph illustrates a normal distribution for the prices paid for a particular model of HD television. The mean price paid is $2000 and the standard deviation is $75. ents 1775 1850 1925 2000 2075 2150 2225 Distribution of Prices Q What is the approximate percentage of buyers who paid between $2000 and $2225? What is the approximate percentage of buyers who paid more than $2150? What is the approximate percentage of buyers who paid between $2000 and $2150? live What is the approximate percentage of buyers who paid between $1925 and $2075? What is the approximate percentage of buyers who paid less than $1775? What is the approximate percentage of buyers who paid between $2000 and $2075? 96 O F 16.F A hpthe web... ported From IE Chapter 2 Measures of Center and Spread s://egcc.instructure.com/courses/26867/assignments/742814?module_item_id=2191066 Due Sunday by 11:59pm Points 17 Submitting an external tool ST Chapter 2 Measures of Center and Spread Progress saved Incements Score: 11.6/17 13/17 answered ments Question 17 On a recent quiz, the class mean was 78 with a standard deviation of 2.4. Calculate the z-score (to 4 decimal places) for a person who received score of 80.88. z-score: Is this unusual? DUS Unusual ules Not Unusual gle Drive Question Help: Message instructor ce 365 Submit Question earch O 16 F hpb... m IE Chapter 2 Measures of Center and Spread nstructure.com/courses/26867/assignments/742814?module_item_id=2191066 Due Sunday by 11:59pm Points 17 Submitting an external tool Chapter 2 Measures of Center and Spread Progress saved Done its Score: 11.6/17 13/17 answered Question 16 0/1 pt On a recent quiz, the class mean was 71 with a standard deviation of 5. Calculate the z-score (to 4 decimal places) for a person who received score of 88. z-score : Is this unusual? O Not Unusual Unusual Question Help: Message instructor Submit Question O O 16.F hp