MATH 1410 / MATH1410 STATISTICS
MATH 1410 / MATH1410 STATISTICS
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MATH 1410 / MATH1410 STATISTICS UNIT 4 – MILESTONE 4
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MATH 1410 / MATH1410 STATISTICS 
UNIT 4 – MILESTONE 4 
 
 
 
 
 
 
 
 
 
 
You passed this Milestone 
The table below shows the grade and reading level for 5 students. 
 
Grade Reading Level 
 
Student 1 2	6 
Student 2 6	14 
Student 3 5	12 
Student 4 4	10 
Student 5 1	4 
 
 
For grade, the mean is 3.6 and the standard deviation is 2.1. 
For reading level, the mean is 9.2 and the standard deviation is 4.1. 
 
Using the formula below or Excel, find the correlation coefficient, r, for this set o...
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MATH 1410 / MATH1410 STATISTICS UNIT 2 – MILESTONE 2
- Exam (elaborations) • 22 pages • 2022
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MATH 1410 / MATH1410 STATISTICS 
UNIT 2 – MILESTONE 2 
 
 
 
 
 
 
 
 
 
 
You passed this Milestone 
The manager went over the sales of mobile phones at the store and found that the mean sale was 45, with a standard deviation of 4. On a particular day, 52 mobile phones were sold. 
 
What is the z-score of the sale of mobile phones on that day? 
 
 
-28 
 
 
28 
 
 
1.75 
 
 
-1.75 
 
RATIONALE 
Recall that the z-score can be calculated with the following formula: 
 
 
The given value is 52 ...
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MATH 1410 / MATH1410 STATISTICS UNIT 1 – MILESTONE 1
- Exam (elaborations) • 19 pages • 2022
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MATH 1410 / MATH1410 STATISTICS 
UNIT 1 – MILESTONE 1 
 
 
 
 
 
 
 
 
 
 
You passed this Milestone 
Jenae noticed that many of her co-workers would opt for the coffee that appeared to be most recently brewed, regardless of the flavor of the coffee offered. This leads her to believe that what she was witnessing was not really representative of everyone's true flavor preferences. She adapted her experimental study accordingly. 
 
Select one control in Jenae's experimental study. 
 
 
Jenae ...
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