the 2013 NAEP sample of Michigan twelfth-graders, the mean mathematics scores were 152 for female students and 156 for male students.  To see if this difference is statistically significant, you would use a. the one-sample t-test b. the matched pairs t-test c. the two-sample t-test d. the z-test

CHAPTER 16 CLASSWORK 1. Find the mean for the following lists of numbers. (Round to the nearest tenth) a. Algebra quiz scores: 32, 26, 30, 19, 51, 46, 38, 39 b. Average number of defects per school: 10.6, 12.5, 11.7, 9.6, 10.3, 9.6, 10.9, 6.4, 2.3, 4.1 2. Find the mode or modes for each of the following lists of numbers a. Number of students graduating with honors: 85, 69, 72, 69, 103, 81, 98. b. Number of fifth grade students: 32, 38, 32, 36, 38, 34, 35, 30, 39 3. Find the median of following numbers. (Round to the nearest hundredth) a. 35, 33, 32, 34, 35, 34, 35, 35, 34 b. 35, 33, 34, 35, 34, 35, 35, 34

Do A/B

cw2 In a city with three high schools, all the ninth graders took a Standardized Test, with these results:   High School Mean score on test Number of ninth graders Glenwood 75 288 Central City 96 304 Lincoln High 67 176   The city's PR manager, who never took statistics, claimed the mean score of all ninth graders in the city was 79.3 . Of course, that is incorrect. What is the mean score for all ninth graders in the city?  Mean of all ninth grader's scores =  Round to 2 places

Is the answer correct or incorrect

In a city with three high schools, all the ninth graders took a Standardized Test, with these results: Mean High Number of ninth Test School graders (Frequency) Score Glenwood 83 263 Central 94 323 Lincoln 70 184 The city's PR manager, who never took statistics, claimed the mean score of all ninth graders in the city was the average of 83, 94, and 70, which is 82.3. Of course, that is incorrect. What is the mean score for all ninth graders in the city? Round to one decimal place. Mean of all ninth grader's scores =

If you have the following observations: 100, 50, k, 30, 150, then what is the possible value of the median? Select one: O a. 30 or 50 O b. 30 or k or 50 O c. k O d. none

u refers to the population mean while x refers to the sample mean O A. True O B. False ts ft or 2

State whether the mean, median, or mode is being used in the given statement. In 2025, there were as many people aged 25 and younger in the world as there were people aged 25 and older.

A congressperson wants to come up with a single value to describe the prices of homes in their district. However, their district consists of a few homes that are extremely expensive compared to the others. Which descriptive statistic should they use? a. Range b. Mode c. Median d. Mean