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Question a: Converting data to indexes makes it easier to compare the trend in a series composed of exceptionally large numbers.
Choose the right answer:
a. True
b. False
Question b: The Bureau of the Census reported that the farm population dropped from 30.5 million in 1940 to 6.5 million in 1999. What is the index for 1999 based on 1940? Choose the right answer:
a. 469.7
b. 100.0
c. 21.3
d. 78.7
Researchers are studying the absorption of two drugs into the bloodstream. Each drug is to be injected at three dosages. There are 24 people in the study, and they are randomly divided into six groups.
Compute the probability that randomly chosen student with a Master's degree majored in English or mathematics?
To test the effectiveness of a new type of plastic handcuffs, a law enforcement agency puts the cuffs on a sample of 30 persons who belong to the local weightlifting club. None is capable to break free from the cuffs. What type of sampling techniq..
A check of dorm rooms on a large college campuses revealed that 38% had refrigerators, 52 percent had TVs and 21 percent had both a TV and a refrigerator. What's the probability that a randomly selected dorm room has.
Express Courier Service has found that the delivery time for packages is normally distributed, with mean 13 hours and standard deviation 2 hours.
Describe five data collection techniques in your own words. Be sure to cite any sources you used. Explain why the examination of collected data is so important.
The Evergreen Fertilizer Company produces fertilizer. The company's fixed monthly cost is $25,000, and its variable cost per pound of fertilizer is $0.15.
Which measure of association would the researcher use to compare the relationship between the IV and DV? Why?
Estimating confidence interval for mean value of y and find a 95% confidence interval for the expected average total sleep time for a child of age 12
This includes knowing how to use an ANOVA for managerial decisions. Present a business example where you would use an ANOVA. State the hypothesis verbally and numerically.
Among coffee drinkers, men drink a mean of 3.2 cups per day with a standard deviation of 0.8 cups. assume the number of coffee drinks per day follows a normal distribution.
Find a 95% confidence interval for the mean daily caloric intake. Interpret this interval.
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