Reference no: EM132375495
Statistical Packages Homework -
Please submit BOTH your program syntax and relevant output/conclusions together in one word file.
Q1. Hodgkin's Disease
In a study of Hodgkin's disease, a cancer of the lymph modes, each of 538 patients with the disease, was classified by histological type and by their response to treatment 3 months after it had begun. (The data are described in more detail in Hancock et al., 1979.) The histological types are LP = lymphocyte predominance, NS = nodular sclerosis, MC = mixed cellularity and LD = lymphocyte depletion.
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Response
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Positive
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Partial
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None
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Total
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Histological type
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LP
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74
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18
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12
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104
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NS
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68
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16
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12
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96
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MC
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154
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54
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58
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266
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LD
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18
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10
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44
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72
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Total
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314
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98
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126
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538
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1. 'What, if any, is the relationship between histological type and response to treatment?
Q2. The data in the following table represents 53 married couples and provides the number of cases in which a tall or short man was married to a tall or short woman. Perform
1) a McNemar's test
2) a Chi-squared test
Be sure to discuss the underlying hypotheses that you would accept/reject and differences/similarities between the conclusions from the two tests.
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Wife
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Husband
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Tall
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Short
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Tall
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18
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14
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Short
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12
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9
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Q3. The data in the following table are excerpted from an article by Duggal et al. (2010). Researchers gathered data from 5 placebo-controlled studies of Niacin and heart disease. They were looking to see if the risk of coronary heart revascularization was lower when patients were given Niacin versus placebo. Accounting for the 5 different studies in your analysis, is there an association between revascularization and Niacin?
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Study Name
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Revasc.
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No revasc.
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Percent revasc.
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FATS
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Niacin
Placebo
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2
11
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46
41
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4.2
21.2
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AFREGS
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Niacin
Placebo
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4
12
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67
60
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5.6
16.7
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ARBITER 2
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Niacin
Placebo
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1
4
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86
76
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1.1
5.0
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HATS
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Niacin
Placebo
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1
6
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37
32
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2.6
15.8
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CLAS 1
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Niacin
Placebo
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2
1
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92
93
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2.1
1.1
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Q4. The data in the following table are excerpted from an article (Inskip et al., 2001) from New England Journal of Medicine. Is cell phones usage associated with brain tumor?
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Cell Phone Use
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Control Group
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Brain Tumor Group
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No Use
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440
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471
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1-5 times in life
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105
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94
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>5 time in life
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232
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194
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Regular use
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172
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139
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Reduce the amount you owe in the first year
: Suppose you borrow $12,000 at a rate of 9% and must repay it in 4 equal instalments at the end of each of the next 4 years.
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What is the stock expected price
: The required rate of return on the stock is 22%. What is the stock's expected price 13 years from today (i.e., what is P13)?
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What is the stock expected price
: The required rate of return on the stock is 20%. What is the stock's expected price 12 years from today (i.e., what is P12)?
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What is the cost of common stock
: The risk-free rate is 4.4%, the market risk premium is 9.3%, and the stock's beta is 1.79. What is the cost of common stock (Ke)?
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Perform a McNemars test and a Chi-squared test
: Stat 1301/2300 Statistical Packages Homework - Perform a McNemars test and a Chi-squared test
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What is today price of the stock
: ABC, Inc. is expected to pay dividends of $12.94 each year infinitely. If the required rate on the stock is 3.18%, what is today's price of the stock?
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What is the dividend yield
: The dividend is expected to grow at 2.88% each year. If the stock is currently selling for $26.35, what is the dividend yield?
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What is the payback period
: If the project is expected to produce cash flows of $50k in year 1, $51k in year 2, and $423k in year 3, what is the payback period.
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What is the beta of that stock
: Consider the following information: If market return is -10%, the stock return is equal to 0%.
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