STAT 319 SECTION 1 STAT319 SECTION 4 76 84 65 45 64 15 87 88 87...
|
STAT 319 SECTION 1 |
STAT319 SECTION 4 |
|
76 |
84 |
|
65 |
45 |
|
64 |
15 |
|
87 |
88 |
|
87 |
79 |
|
60 |
79 |
|
36 |
58 |
|
37 |
77 |
|
76 |
84 |
|
87 |
97 |
|
36 |
87 |
|
57 |
68 |
|
56 |
66 |
|
78 |
68 |
|
57 |
68 |
|
76 |
86 |
|
87 |
74 |
|
68 |
78 |
Table above shows the grades obtained by students studying STAT 319 at section 1 and section 4. These samples of grades will be used to study the effectiveness of teaching methods and approach by different instructors.
- Draw the normal distribution curve and calculate standard deviation for each section
- Compare the results do an analysis
- In your opinion gives some suggestion to improve the learning process
Homework Answers
The plots are:
| STAT 319 SECTION 1 | STAT319 SECTION 4 | |
| count | 18 | 18 |
| mean | 66.11 | 72.28 |
| sample standard deviation | 17.41 | 18.80 |
The data is approximately normal.
Consider the below matrixA, which you can copy and paste directly into Matlab.
Problem #1: Consider the below matrix A, which you can copy and paste directly into Matlab. The matrix contains 3 columns. The first column consists of Test #1 marks, the second column is Test # 2 marks, and the third column is final exam marks for a large linear algebra course. Each row represents a particular student.A = [36 45 75 81 59 73 77 73 73 65 72 78 65 55 83 73 57 78 84 31 60 83...
1. Forecast demand for Year 4. a. Explain what technique you utilized to forecast your demand....
1. Forecast demand for Year 4.
a. Explain what technique you utilized to forecast your
demand.
b. Explain why you chose this technique over others.
Year 3 Year 1 Year 2 Actual Actual Actual Forecast Forecast Forecast Demand Demand Demand Week 1 52 57 63 55 66 77 Week 2 49 58 68 69 75 65 Week 3 47 50 58 65 80 74 Week 4 60 53 58 55 78 67 57 Week 5 49 57 64 76 77...
Use the accompanying data set on the pulse rates (in beats per minute) of males to...
Use the accompanying data set on the pulse rates (in beats per minute) of males to complete parts (a) and (b) below. LOADING... Click the icon to view the pulse rates of males. a. Find the mean and standard deviation, and verify that the pulse rates have a distribution that is roughly normal. The mean of the pulse rates is 71.871.8 beats per minute. (Round to one decimal place as needed.) The standard deviation of the pulse rates is 12.212.2...
QUESTION 23 Problem 5) True False Final scores of all the students in randomly selected 3...
QUESTION 23 Problem 5) True False Final scores of all the students in randomly selected 3 sections in a course, "Statistical Methods tot Sam Houston State University are presented below. There me 25 sections in total Section 3: (69.92, 66, 81, 76, 55, 70, 83, 68, 57, 50, 66, 69, 55, 88, 70, 70, 70, 56, 50) Section 6: (10, 73, 88, 58, 89, 69, 63, 76, 87, 82, 97, 76, 66, 95, 84, 88, 82, 81, 68, 89) Section...
QUESTION 27 Problem 5) Final scores of all the students in randomly selected 3 sections in...
QUESTION 27 Problem 5) Final scores of all the students in randomly selected 3 sections in a course, "Statistical Methods at Sam Houston State University we presented below. There are 25 sections in total Section 3: (69.92, 66, 81, 76, 55, 70, 83, 68, 57, 80, 66, 69, 55, 88, 70, 70, 70, 56, 50) Section 6: (10, 73, 88, 58, 89, 69, 63, 76, 87, 82, 97, 76, 66, 95, 84, 88, 82, 81, 68, 89) Section 9: (30,...
89 67 84 74 58 51 63 68 84 65 57 76 58 75 72 67...
89
67
84
74
58
51
63
68
84
65
57
76
58
75
72
67
64
74
95
53
77
86
90
80
70
67
76
62
91
70
63
78
49
61
77
57
83
67
107
67
80
73
94
80
73
74
67
72
68
79
73
121
63
77
70
61
75
66
79
54
76
86
84
72
65
75
63
91
72
64
99
81
58
70
58
58
90
66
64
80...
Use the Grouped Distribution method for the following exercise (see Self-Test 2-4 for detailed instructions), rounding...
Use the Grouped Distribution method for the following exercise (see Self-Test 2-4 for detailed instructions), rounding each answer to the nearest whole number. Using the frequency distribution below (scores on a statistics exam taken by 80 students), determine:ion 1 of the preliminary test (scores on a statistics exam taken by 80 students), determine: 68 84 75 82 68 90 62 88 76 93 73 79 88 73 60 93 71 59 85 75 61 65 75 87 74 62 95...
Use the Grouped Distribution method for the following exercise (see Self-Test 2-4 for detailed instructions), rounding...
Use the Grouped Distribution method for the following exercise (see Self-Test 2-4 for detailed instructions), rounding each answer to the nearest whole number. Using the frequency distribution below (scores on a statistics exam taken by 80 students), determine:ion 1 of the preliminary test (scores on a statistics exam taken by 80 students), determine: 68 84 75 82 68 90 62 88 76 93 73 79 88 73 60 93 71 59 85 75 61 65 75 87 74 62 95...
QUESTION 26 Problem 53 Final scores of all the students in randomly selected 3 sections in...
QUESTION 26 Problem 53 Final scores of all the students in randomly selected 3 sections in a course, "Statistical Methods at Sam Houston State University are presented below. There are 25 sections in total Section 3 (69,92, 66, 81, 76,55,70,83,68, 57, 80,66,69, 55, 88, 70, 70, 70, 56, 50) Section 6 (10.73.88, 58, 89.69.63, 76, 87, 82, 97, 76, 66, 95, 84, 88, 82, 81,68,89) Section 30, 55, 76, 73.92, 65, 90, 71, 77, 78, 86, 91, 87, 78, 88,...
An experiment is conducted to determine if classes offered in an online format are as effective a...
An experiment is conducted to determine if classes offered in an online format are as effective as classes offered in a traditional classroom setting. Students were randomly assigned to one of the two teaching methods. Data below. a. Test the claim that the standard deviations for the two groups are equal. What is the p-value of the test? b. Construct a 95% confidence interval on the difference in expected final exam scores between the two groups. Does the data support...
1. Forecast demand for Year 4.
a. Explain what technique you utilized to forecast your
demand.
b. Explain why you chose this technique over others.
Year 3 Year 1 Year 2 Actual Actual Actual Forecast Forecast Forecast Demand Demand Demand Week 1 52 57 63 55 66 77 Week 2 49 58 68 69 75 65 Week 3 47 50 58 65 80 74 Week 4 60 53 58 55 78 67 57 Week 5 49 57 64 76 77...
QUESTION 23 Problem 5) True False Final scores of all the students in randomly selected 3 sections in a course, "Statistical Methods tot Sam Houston State University are presented below. There me 25 sections in total Section 3: (69.92, 66, 81, 76, 55, 70, 83, 68, 57, 50, 66, 69, 55, 88, 70, 70, 70, 56, 50) Section 6: (10, 73, 88, 58, 89, 69, 63, 76, 87, 82, 97, 76, 66, 95, 84, 88, 82, 81, 68, 89) Section...
QUESTION 27 Problem 5) Final scores of all the students in randomly selected 3 sections in a course, "Statistical Methods at Sam Houston State University we presented below. There are 25 sections in total Section 3: (69.92, 66, 81, 76, 55, 70, 83, 68, 57, 80, 66, 69, 55, 88, 70, 70, 70, 56, 50) Section 6: (10, 73, 88, 58, 89, 69, 63, 76, 87, 82, 97, 76, 66, 95, 84, 88, 82, 81, 68, 89) Section 9: (30,...
89
67
84
74
58
51
63
68
84
65
57
76
58
75
72
67
64
74
95
53
77
86
90
80
70
67
76
62
91
70
63
78
49
61
77
57
83
67
107
67
80
73
94
80
73
74
67
72
68
79
73
121
63
77
70
61
75
66
79
54
76
86
84
72
65
75
63
91
72
64
99
81
58
70
58
58
90
66
64
80...
QUESTION 26 Problem 53 Final scores of all the students in randomly selected 3 sections in a course, "Statistical Methods at Sam Houston State University are presented below. There are 25 sections in total Section 3 (69,92, 66, 81, 76,55,70,83,68, 57, 80,66,69, 55, 88, 70, 70, 70, 56, 50) Section 6 (10.73.88, 58, 89.69.63, 76, 87, 82, 97, 76, 66, 95, 84, 88, 82, 81,68,89) Section 30, 55, 76, 73.92, 65, 90, 71, 77, 78, 86, 91, 87, 78, 88,...
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