ASHFORD MAT 126 Week 5 Quiz Course(Uop)/TutorialRank
1. Question : Find the area under the normal distribution curve between z = 1.52 and z = 2.43. 2. Question : For the 20 test scores shown, find the percentile rank for a score of 86. 75 63 92 74 86 50 77 82 98 65 71 89 75 66 87 59 70 83 91 73 3. Question : If a student's percentile rank in a class of 400 students is 87, find the student's class rank.
1. Question : Find the area under the normal distribution curve between z = 1.52 and z = 2.43.
2. Question : For the 20 test scores shown, find the percentile rank for a score of 86.
75 63 92 74 86 50 77 82 98 65 71 89 75 66 87 59 70 83 91 73
3. Question : If a student's percentile rank in a class of 400 students is 87, find the student's class rank.
You also want an ePaper? Increase the reach of your titles
YUMPU automatically turns print PDFs into web optimized ePapers that Google loves.
<strong>ASHFORD</strong> <strong>MAT</strong> <strong>126</strong> <strong>Week</strong> 5 <strong>Quiz</strong><br />
Click Here to Buy the Tutorial<br />
http://www.tutorialrank.com/<strong>MAT</strong>/<strong>ASHFORD</strong>-<strong>MAT</strong>-<strong>126</strong>/<br />
product-6258-ashford-mat-<strong>126</strong>-week-5-quiz<br />
For more course tutorials visit<br />
www.tutorialrank.com<br />
Tutorial Purchased: 2 Times, Rating: A<br />
1. Question : Find the area under the normal distribution curve<br />
between z = 1.52 and z = 2.43.<br />
2.Question : For the 20 test scores shown, find the percentile<br />
rank for a score of 86.<br />
75 63 92 74 86 50 77 82 98 65 71 89 75 66 87 59 70 83 91 73<br />
3.Question : If a student's percentile rank in a class of 400<br />
students is 87, find the student's class rank.<br />
4.Question : Find the value for the correlation coefficient r.
5.Question :<br />
Find the median.<br />
2 27 38 55 49 9 53 34<br />
6.Question :<br />
Find Q1, Q2, and Q3 for the data set below.<br />
5.4 2.0 6.8 3.1 2.9 4.7 2.1 5.0<br />
1.9 3.4<br />
7.Question :<br />
Which statement is true for a statistical study?<br />
8.Question : The average amount customers at a certain grocery<br />
store spend yearly is $636.55. Assume the variable is normally<br />
distributed. If the standard deviation is $89.46, find the probability<br />
that a randomly selected customer spends between $550.67 and<br />
$836.94.<br />
9.Question : Which of the following is not a property of a<br />
normal distribution?
10. Question : The average hourly wage of employees of a<br />
certain company is $9.83. Assume the variable is normally<br />
distributed. If the standard deviation is $4.58, find the probability<br />
that a randomly selected employee earns less than $5.43.<br />
11. Question : Use a scatter plot to deternine the relationship<br />
between the x values and the y values.<br />
12. Question : If a student's rank in a class of 400 students is<br />
44, find the student's percentile rank.<br />
13. Question : Fran's percentile rank on an exam in a class of<br />
500 is 85. Kelly's class rank is 60. Who is ranked higher?<br />
14. Question : The area under a normal distribution curve that<br />
lies within one standard deviation of the mean is approximately<br />
___.<br />
15. Question : Find the area under the normal distribution<br />
curve to the right of z = –1.03.<br />
16. Question : Find the area under the normal distribution<br />
curve to the right of z = –3.24.
17. Question : Armia's percentile rank on an exam in a class<br />
of 300 is 85. Sanjo's class rank is 42. Who is ranked higher?<br />
18. Question : Determine whether a correlation coefficient of r<br />
= –0.405 is significant at the 5% level for a sample size of 22.<br />
19. Question : Find the standard deviation.<br />
44 46 33 10 50 27<br />
20. Question : Find the median and the mean for the data set<br />
below.<br />
5.4 2.0 6.8 3.1 2.9 4.7 2.1 5.0 1.9 3.4
Change language