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A recent study of 200 nurses found that of 125 female nurses, 56 had bachelor's degrees; and of 75 male nurses, 34 had bachelor's degrees. If a nurse is selected at random, and the probability that the nurse is?
(a) A female nurse with a bachelor's degree.(b) A male nurse.(c) A male nurse with a bachelor's degree.
A random sample of 85 group leaders and supervisors revealed that they worked an average of 6.5 years before being promoted. The population standard deviation was 1.7 years. Using the 0.95 degree of confidence, what is the confidence interval for ..
About 40% of the general population donate time and energy to community projects. Suppose 15 people have been randomly selected from a community and each asked whether he or she donates time and energy to community projects.
Assuming this is literally true, how can it be explained? What facts and/or statistics would you need to know to expose this misleading claim?
What do the results suggest? How might you use this data from this sample size to develop a smoking cessation program at your workplace?
The 97.5% CI for mean changes in Group B minus mean change in Group A is (-4.7 to -0.9). Suppose we want to compute a two-sided p-value to compare the two groups.
Developing project network using AOA that determines completion times.
Create a set of data that can be modeled as a polynomial function. Please provide a reference to the data. Plot the data using Microsoft Excel including the equation for the fit. Discuss how closely the data seem to match to the best fit line.
Adult US women are known to have cholesterol levels that are N(189 mg/dL, 25 mg/dL). What % of US women would you expect to have cholesterol levels below 135?
Dinner B which costs $135.30 for dinner submitted by salesperson with mean cost of $117.50 and standard deviation of $30 per dinner?
Determine and interpret a 95% confidence interval for the mean amount of time Americans age 15 or older spend eating and drinking each day.
The grades on the exam have a mean score of 80 with a standard deviation of 6. Describe as completely as possible the distribution of grades.
On the basis of these results, do you think retailers and consumers have a right to complain to the manufacturers? Why?
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