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How have you used the scientific process (unsystematic observation, building theories, and evaluating propositions) in your life to better understand your personality? Provide an example in your response.
What fraction of the calls last between 4.2 and 5 minutes?
Determine the probability that no female are hired. Determine the mean and standard deviation of X.
Test whether the weight reducers on average will lose less than 10 pounds using P-value approach.
A company must hire a new CFO and prepares a final list of five candidates - all are equally qualified. Two of the candidates are members of a minority of a minority group. To avoid bias in the selection of the candidate
Explain in your own words how to recognize a situation where you needed to use a two-sample test. Give a unique example of a two sample test for proportion or mean. Make sure to detail why only a two sample test would suffice.
It is believed that population standard deviation is 15 days. If test is conducted using a 0.05 level of significance, what conclusion must be reached?
The progress report of a research analyst to the supervisor stated: "All the estimated regression coefficients in our model with three predictor variables to predict sales are statistically significant.
From a random sample of 48 days in a recent year, U.S. gasoline prices had a mean of $2.34 (wow - that's old data!) and a standard deviation of $0.32. Construct the 90% and 95% confidence intervals for the population mean.
Develop a minimum cost schedule for the part-time employees. (How many start at each hour?). What is the total payroll for the part-time employees?
If they didn't launch new mixing plant another alternate can contribute twenty five million profit for the same period (i.e. estimated 6 years). Draw the complete decision tree and determine whether the product should be launched or not.
At.05 significance level, is there a difference in mean number of calls per day between 2 employees? Compute the p -value?
Such things as historical documents, newspaper reports, TV and radio broadcasts, when used in research, represents
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