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# Which variable is the dependent variable - PowerPoint PPT Presentation

Assignment Solutions, Case study Answer sheets nProject Report and Thesis contactnaravind.banakar@gmail.comnwww.mbacasestudyanswers.comnARAVIND â€“ 09901366442 â€“ 09902787224nnBusiness Statisticsnn1. The sample data from a research survey conducted in various countries on the amount of time 3-5 year-old children spent alone with their fathers each day is as follows:nnCountry Time with Dad (minutes)nnBangladesh 30nBhutan 46nChina 54nnNepal 50nnPakistan 46nnNigeria 42nnKorea 46nnRussia 42nnIndia 50nnFor the above sample, determine the following measures:na. The meannb. The standard deviationnc. The modend. The 75th percentilenBased on your calculations comment on the father-children relationship (10 Marks)nn2. â€˜Princeâ€™ a chaiwala at Mumbai Central station believes that the sales of tea at his tea shop depends upon the weather. He has taken a sample of a weekâ€™s data. Below you are given the results of the sample. (10 Marks)nnCups Sold Temperaturen350 50n200 60n210 70n100 80n80 90n70 100n50 110nna. Which variable is the dependent variable?nb. Compute the least squares estimated line.nc. Is there a significant relationship between the sales of coffee and temperature?ne. Predict sales of a 95 degree day.nn3. According to one of the recent study published in an International report, the cost of medical malpractice in the United States is USD 55.6 billion a year, which is approximately 2.4 percent of US annual health-care spending. An earlier research report published in 2011, in the New England Journal of Medicine revealed that, during the period 1991 to 2005, 7.4 percent of all physicians licensed in the US had a malpractice claim. These staggering numbers not only contribute to the high cost of health care, but the size of successful malpractice claims also contributes to high premiums for medical malpractice insurance. The table below contains a sample of data set of claim payments made in a yearâ€™s time and other information about the claimantnn nna. Using descriptive statistics explore claim payment amounts, and identify factors thatnappear to influence the amount of the payment. (5 Marks)nnb. Do a correlation analysis between â€˜Amountâ€™ and â€˜Ageâ€™ and interpreted the coefficientnof correlation.nnnAssignment Solutions, Case study Answer sheets nProject Report and Thesis contactnaravind.banakar@gmail.comnwww.mbacasestudyanswers.comnARAVIND â€“ 09901366442 â€“ 09902787224nn

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## Which variable is the dependent variable

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### Business Statistics

Business Statistics

1. The sample data from a research survey conducted in various countries on the amount of time 3-5 year-old children spent alone with their fathers each day is as follows:

Country Time with Dad (minutes)

Bangladesh 30

Bhutan 46

China 54

Nepal 50

Pakistan 46

Nigeria 42

Korea 46

Russia 42

India 50

For the above sample, determine the following measures:

a. The mean

b. The standard deviation

c. The mode

d. The 75th percentile

Based on your calculations comment on the father-children relationship (10 Marks)

2. ‘Prince’ a chaiwala at Mumbai Central station believes that the sales of tea at his tea shop depends upon the weather. He has taken a sample of a week’s data. Below you are given the results of the sample. (10 Marks)

Cups Sold Temperature

350 50

200 60

210 70

100 80

80 90

70 100

50 110

a. Which variable is the dependent variable?

b. Compute the least squares estimated line.

c. Is there a significant relationship between the sales of coffee and temperature?

e. Predict sales of a 95 degree day.

3. According to one of the recent study published in an International report, the cost of medical malpractice in the United States is USD 55.6 billion a year, which is approximately 2.4 percent of US annual health-care spending. An earlier research report published in 2011, in the New England Journal of Medicine revealed that, during the period 1991 to 2005, 7.4 percent of all physicians licensed in the US had a malpractice claim. These staggering numbers not only contribute to the high cost of health care, but the size of successful malpractice claims also contributes to high premiums for medical malpractice insurance. The table below contains a sample of data set of claim payments made in a year’s time and other information about the claimant

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