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Among 100 people randomly chosen in a survey, exactly 10 stated that they believed that the elected representatives are honest most of the time. The approximate 99% confidence interval for the percentage of the population who believe that such people are honest most of the time is?
In an article in the Journal of Management Information Systems, Mahmood and Mann investigate how information technology (IT) investment relates to company performance.
Four different assembly processes were under consideration. Sixteen workers were randomly assigned to the four processes, eight per process. The number of correctly assembled units in an eight-hour work shift was recorded:
In what height interval must the company expect to determine middle 70% of kindergarteners?
Ace Machine Works estimates that the probability its lathe tool is properly adjusted is 0.8. When the lathe is properly adjusted, there is a 0.9 probability that the parts produced pass inspection.
Critically discuss some examples of literature reviews and statistics used and available at your work place or organization? What are they used for and how are they determined?
You plan to conduct a survey to find what proportion of the workforce has two or more jobs. You decide on the 95 percent confidence level and state that the estimated proportion must be within 2 percent of the population proportion.
There is enough evidence at a significance level of 10%, to conclude that the content average sodium this brand of corn flakes is 130 milligrams?
What is the value of the population mean? What is the best estimate of this value?
Compute mean, standard deviation, coefficient of variation and 5 key percentiles for these data.
A recent survey reported in Business Week dealt with the salaries of CEOs at large corporations and whether company shareholders made money or lost money.
For the 20 test scores shown, find the percentile rank for a score of 86.
Find the prediction equation for the price of a laptop using rating and features. What is the value of the residual standard deviation?
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