Studies are often done by pharmaceutical companies to determine the effectiveness of a treatment program. Suppose that a new AIDS antibody drug is currently under study. It is given to patients once the AIDS symptoms have revealed themselves. Of interest is the average length of time in months patients live once starting the treatment. Two researchers each follow a different set of 40 AIDS patients from the start of treatment until their deaths. The following data (in months) are collected.

Researcher 1: 3; 4; 11; 15; 16; 17; 22; 44; 37; 16; 14; 24; 25; 15; 26; 27; 33; 29; 35; 44; 13; 21; 22; 10; 12; 8; 40; 32; 26; 27; 31; 34; 29; 17; 8; 24; 18; 47; 33; 34

Researcher 2: 3; 14; 11; 5; 16; 17; 28; 41; 31; 18; 14; 14; 26; 25; 21; 22; 31; 2; 35; 44; 23; 21; 21; 16; 12; 18; 41; 22; 16; 25; 33; 34; 29; 13; 18; 24; 23; 42; 33; 29

Compute the mean, median, mode, range, and standard deviation for the data sets for each researcher.

Studies are often done by pharmaceutical companies to determine the effectiveness of a treatment program. Suppose that a new AIDS antibody drug is currently under study. It is given to patients once the AIDS symptoms have revealed themselves. Of interest is the average length of time in months patients live once starting the treatment. Two researchers each follow a different set of 40 AIDS patients from the start of treatment until their deaths. The following data (in months) are collected.

• Researcher 1: 3; 4; 11; 15; 16; 17; 22; 44; 37; 16; 14; 24; 25; 15; 26; 27; 33; 29; 35; 44; 13; 21; 22; 10; 12; 8; 40; 32; 26; 27; 31; 34; 29; 17; 8; 24; 18; 47; 33; 34

• Researcher 2: 3; 14; 11; 5; 16; 17; 28; 41; 31; 18; 14; 14; 26; 25; 21; 22; 31; 2; 35; 44; 23; 21; 21; 16; 12; 18; 41; 22; 16; 25; 33; 34; 29; 13; 18; 24; 23; 42; 33; 29

Compute the mean, median, mode, range, and standard deviation for the data sets for each researcher.

Studies are often done by pharmaceutical companies to determine the effectiveness of a treatment program. Suppose that a new AIDS antibody drug is currently under study. It is given to patients once the AIDS symptoms have revealed themselves. Of interest is the average length of time in months patients live once starting the treatment. Two researchers each follow a different set of 40 AIDS patients from the start of treatment until their deaths. The following data (in months) are collected.

• Researcher 1: 3; 4; 11; 15; 16; 17; 22; 44; 37; 16; 14; 24; 25; 15; 26; 27; 33; 29; 35; 44; 13; 21; 22; 10; 12; 8; 40; 32; 26; 27; 31; 34; 29; 17; 8; 24; 18; 47; 33; 34

• Researcher 2: 3; 14; 11; 5; 16; 17; 28; 41; 31; 18; 14; 14; 26; 25; 21; 22; 31; 2; 35; 44; 23; 21; 21; 16; 12; 18; 41; 22; 16; 25; 33; 34; 29; 13; 18; 24; 23; 42; 33; 29

Compute the mean, median, mode, range, and standard deviation for the data sets for each researcher.

A newly installed automatic gate system was being tested to see if the number of failures in 1,000 entry attempts was the same as the number of failures in 1,000 exit attempts. A random sample of eight delivery trucks was selected for data collection. Do these sample results show that there is a significant difference between entry and exit gate failures? Use α = 0.05.

(c) Find the critical value t_crit for α = 0.05. (Round your answer to 3 decimal places. A negative value should be indicated by a minus sign.)



(d) Find the p-value. (Round your answer to 4 decimal places.)

  

Enter two valid BCD numbers. Show the result in seven segment display and LED

How to do this using the components dip switch, Two BCD adders 74ls83, And gates, OR gates, 74 ls47 decoder, 7 segment display and LED

Nick runs a small business conducting online economics tutorials. He has recently noticed a large influx of competitors to this market. There are now over 50 companies conducting online economics tutorials in Melbourne alone, each with their own technology and style of teaching. What kind of market structure is this? Make sure you examine each of the characteristics of market structure in your answer. Explain whether the government should be worried about any aspects of this market structure. How can the government address these concerns?

Nick runs a small business conducting online economics tutorials. He has recently noticed a large influx of competitors to this market. There are now over 50 companies conducting online economics tutorials in Melbourne alone, each with their own technology and style of teaching. What kind of market structure is this? Make sure you examine each of the characteristics of market structure in your answer. Explain whether the government should be worried about any aspects of this market structure. How can the government address these concerns?

The data from data105.dat contains information on 78 seventh-grade students. We want to know how well each of IQ score and self-concept score predicts GPA using least-squares regression. We also want to know which of these explanatory variables predicts GPA better. Give numerical measures that answer these questions. (Round your answers to three decimal places.)
(Regressor: IQ) R ² =

(Regressor: Self-Concept) R ²  =

obs     gpa     iq      gender  concept
1       7.94    101     2       44
2       8.292   120     2       57
3       4.643   114     2       49
4       7.47    106     2       68
5       8.882   116     1       82
6       7.585   107     2       58
7       7.65    101     2       73
8       2.412   81      2       22
9       6       109     1       39
10      8.833   110     2       66
11      7.47    99      1       75
12      5.528   104     1       47
13      7.167   101     2       59
14      7.571   104     1       71
15      4.7     108     1       44
16      8.167   106     1       44
17      7.822   105     1       73
18      7.598   104     1       76
19      4       95      2       41
20      6.231   102     1       46
21      7.643   111     2       52
22      1.76    119     2       44
24      6.419   111     1       48
26      9.648   104     2       60
27      10.7    115     1       44
28      10.58   138     2       50
29      9.429   115     2       59
30      8       108     2       69
31      9.585   115     2       56
32      9.571   118     1       49
33      8.998   121     1       63
34      8.333   119     1       60
35      8.175   123     2       69
36      8       96      2       40
37      9.333   108     1       53
38      9.5     111     2       70
39      9.167   131     2       47
40      10.14   126     1       76
41      9.999   112     1       67
43      10.76   122     2       91
44      9.763   134     2       87
45      9.41    103     2       65
46      9.167   116     2       67
47      9.348   101     2       83
48      8.167   112     2       74
50      3.647   95      2       56
51      3.408   73      1       47
52      3.936   80      2       33
53      7.167   121     2       50
54      7.647   111     2       61
55      .53     81      2       27
56      6.173   106     2       46
57      7.295   117     2       74
58      7.295   112     1       69
59      8.938   98      1       68
60      7.882   102     1       51
61      8.353   114     2       58
62      5.062   116     2       56
63      8.175   123     2       50
64      8.235   91      2       64
65      7.588   102     2       38
68      7.647   115     2       44
69      5.237   105     1       40
71      7.825   86      2       75
72      7.333   111     1       57
74      9.167   116     2       50
76      7.996   106     2       40
77      8.714   118     1       68
78      7.833   114     1       71
79      4.885   102     2       65
80      7.998   131     1       55
83      3.82    98      2       31
84      5.936   111     1       57
85      9       117     1       56
86      9.5     111     1       53
87      6.057   97      2       58
88      6.057   110     1       43
89      6.938   121     2       43

For each of the following questions, evaluate whether the statement is “true” or “false”. Then, provide a brief explanation to justify your answer. (40 possible points)

1. If the velocity of money increases and nothing else changes, nominal GDP will rise.
2. If the required reserve rate is 5%, bank runs will be more likely than if the required reserve rate is 20%.
3. If the required reserve rate is increased from 10% to 20%, the amount of money in society will double.
4. If the value of M1 increases and nothing else changes, the value of M2 will also increase.

Use excel only, please!

problem #1 data contains data on automobile manufacturer who employs sales representatives who make calls on dealers. The manufacturer wishes to compare the effectiveness of four different call-frequency plans for the sales representatives. Thirty-two representatives are chosen at random from the sales force and randomly assigned to the four call plans for six months, and their sales for the 6-month study period are recorded. Do the sample data support the hypothesis that at least one of the calls plans helps produce a higher average level of sales? Perform an appropriate statistical test and report a P-value.