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The personnel manager at a company wants to investigate job satisfaction among the female employees. One evening after a meeting she talks to all 30 female employees who attended the meeting. Does this sampling plan result in a random sample? Simple random sample? Explain.
The casino game craps is based on rolling two dice. Here is the assignment of probabilities to the sum of numbers on the up face when two dice are rolled:
Testing equality of variances - evidence of a difference in the variability of monthly talking time on cell phones for men and women?
A random sample of 346 individuals is selected, and the individuals are classified according to their smoking habits and the smoking habits of their parents. The results are given in the contingency table below.
Find out the range of the following set of whole numbers: 12, 13, 15, 17, 12, 18, 12, 19, 13, 12, 14, 13, 12, 15
Conduct a one-tailed hypothesis test given the information below. A certain brand of fluorescent light tube was advertised as having an effective life span before burning out of 4000 hours.
Find out if a difference between two response sets is significant. I asked 98 boys what modalities they thought were attractive to girls. 35 said athletes; 25 said tough guys. The rest endorsed other modalities at lesser rates.
How would you interpret the findings of a correlation study that reported a linear correlation coefficient of -1.34? a) strong linear correlation b) weak linear correlation c) impossible, d) calculation error no linear correlation
Set up a null and alternative hypothesis to test whether this sample is falling below expectations.
1.What are the most common reasons you would select a non-parametric test over the parametric alternative?
Identify at your place of work (or a previous place of work, or an organization with which you are affiliated). Identify a dependent variable and 3 independent variables
What percentage of bottles can we expect to have a volume less than 32 oz?
a brief description of the graph- a summarizing statement about the main finding shown in the 3 graphs
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