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The following are body mass index (BMI) scores measured in 12 patients who are free of diabetes and participating in the study of risk factors for obesity. Body mass index is measured as ratio of weight in kilograms to height in meters squared.
25 27 31 33 26 28 38 41 24 32 35 40
a) Calculate the mean BMI
b) Calculate the standard deviation of BMI
c) Calculate the median BMI
c) Calculate Q1 and Q3
e) Are there outliers in distribution of BMI (justify your answer)?
Explain the organization, inventory problem it faces, and expected benefits which are motivating organization to implement a solution.
What is the difference between the probability value and the significance level? Please, also provide examples.
Extrapolating this data by using the sum of squares method would further reveal any discretionary variances in relationship to the mean?
According to an IRS study, it takes a mean of 330 minutes for taxpayers to prepare, copy and electronically file a 1040 tax form. This distribution of times follows the normal distribution and the standard deviation is 80 minutes.
Random sample of 100 people yielded following data on number of tissues utilized in a cold: x-bar = 38, s = 20. By using sample information provided, compute the value of test statistic for the relevant hypothesis test.
Create a scenario for applying the Goodness of Fit application of Chi-square. State the hypotheses, the level of significance, the result and its meaning.
A study is conducted to assess the impact of caffeine consumption, smoking, alcohol consumption, and physical activity on the risk of cardiovascular disease.
A store manager wishes to find out whether there is a relationship between the age of her employees and the number of sick days they take each year. The data for the sample are shown below:
If a random sample of 5 observations from one population results in a standard deviation of 12 and the other random sample of 7 observations results in a standard deviation of 7.
What is the probability that the police will strike and the firefighters will not? What is the probability that the firefighters will strike and the police will not?
The following table describes the estimated green power sales by renewable energy in 2008: Develop a bar chart, pie chart, and Pareto Chart.
By using the fact that Martha believes the treatment will decrease the amount of time to fall asleep, describe the null and alternate hypotheses.
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