92
99
96
94
94
94
90
95
90
89
89
80
83
88
88
1. What is the n? __________
2. What is ∑x ? __________
3. What is ∑x2? __________
4. What is (∑x)2? __________
5. What is the range? __________
6. What is the mean? __________
7. What is the median? __________
8. What is the mode? __________
9. What is the variance? __________
10. What is the standard
deviation? __________
11. If Kara scored a 90 (x)….What is her
Z-score? __________
12. If Sara scored a 95….What is her
T-score? __________
13. Mark scored an 88 (one of...
z = [ 100 93 90 89 80 79 78 75 67 60 45 42 41 40 30 20 15 12 10
9 2 1]
Using MATLAB, Write fully vectorized code (no loops) to find
index number of which the numbers have decreased by 40. Print
results to command window.
Check the following data set for outliers. If there is more than
one answer, separate them with commas. Select "None" if applicable.
132, 136, 110, 135, 141, 146, 153, 160, 143, 142
Given the following data set.
Name Homework Midterm Final
Frank 97 95 92
Emily 93 92 96
William 95 90 88
Janet 88 83 75
Betty 86 79 84
Joe 85 82 86
Bob 72 63 72
(a) Import the data into SAS and print it.
(b) Use SAS to create a new variable Total which is the weighted
average of all grades (the homework counts for 30% of the total
score, the midterm 25% and the final 45%). Add...
Given the following data set.
Name Homework Midterm Final
Frank 97 95 92
Emily 93 92 96
William 95 90 88
Janet 88 83 75
Betty 86 79 84
Joe 85 82 86
Bob 72 63 72 1
(a) Calculate the mean and standard deviation of all final
scores.
(b) Construct a 95% confidence interval for the mean homework
score.
(c) Given α = .05, determine whether the mean of Midterm is more
than 85. Set up appropriate hypotheses, calculate...
Given the data set below
25 52 67 23 78 89 57 90 32 77
45 48 62 54 94 69 46 79 40 33
21 57 84 54 23 34 68 63 61 76
87 78 39 50 70 60 32 65 73 45
28 82 66 79 71 80 46 66 24 90
A)What is the probability of an impossible even?
B) What is the probability of a certain event?
C) find the approximate mean using the Frequency...
(a)Evaluate the following set of data for possible and probable
outliers.
5 8 2 9 5 3 7 4 2 7 4 10 4 3 17
(b) A firm pays 5/12 of its labor force an hourly wage of $5, 1/3
of the labor force a wage
of $6 and ¼ a wage of $7. Determine the average wage paid by the
firm.
(c)For the same amount of capital invested in each of 3 years, an
investor earned a rate...
Data Set: 14, 16, 21, 34, 38, 39, 41, 45, 50, 53, 82,
90
-
Find the 70th percentile
-Find the five number summary
-Determine if the data has any outliers. Explain why
13.Data Set : 41, 18, 21, 34, 90, 39, 41, 14, 45, 53, 50, 82,
38, and 92
a) Compute the percentile of 38
b) Find the 90th percentile
c) Find the five number Summary
d) Construct a modified Box-Plot
e) Determine if data has any potential outliers and explain
why?