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1. When combining probabilities, to find the probability of one event AND another event, the separate probabilities should be:
a) multiplied b) divided c) subtracted d) added
2. An entire group of persons, things or events having at least one trait in common defines the:
a) population b) sample c) statistic d) measurement scale Job Male (M) Female (F)
Faculty (FA)
110
80
Salaried Staff (SS)
30
50
Hourly Staff (HS)
60
40
If an employee is selected at random, what is the probability that the employee is male and hourly staff? Select the best answer from the following:
60/200 = 0.30 60 60/370 = 0.162 60/100 = 0.60
Looking at the data, the manufacturer is incorrect in its label claim. Perform hypothesis testing to prove or disprove it. Is the manufacturer correct in its label claim? Explain.
Plot stem-and-leaf plot and boxplot for Mtotal. Illustrate hand calculation of median location and upper hinge location of boxplot, and determine their corresponding data values.
Calculate the mean and standard deviation of the following data sets, then produce a five number summary and box plot of data.
What is the probability that more than one machine is in the system? Probability that more than two are broken and waiting to be repaired or being serviced? More than three? More than four?
Using the .05 significance level, can we conclude that there is a positive association between the two variables?
Research question: Are mean crash damages same for these 3 vehicles? Crash1 Crash Damage ($).
Such things as historical documents, newspaper reports, TV and radio broadcasts, when used in research, represents
Here are the DMS odor thresholds for 10 untrained students:
The Price-to-Earnings ratio (P/E) of a publicly listed profit-making company is defined as the ratio of the stock price of the company to the earnings per share.
Which sessions, morning or afternoon, had more stable or uniform attendance over three-day period? Describe by using the suitable calculation for each data set and compare two calculations .
The ages of cars owned by all employees of a large company have a bell shaped distribution with a mean of 8 years and a standard deviation of 2 years. Using the empirical rule, find the approx. percentage of cars (owned by those employees) that are b..
Write all the possible samples of size 2 and calculate the average or median of each one.
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