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1. Name an application for the use of ANOVA. This can be in a professional setting, hobby, or something you find on the internet
2. What are some business situations where ANOVA would be more appropriate than a Z or T test?
3. Find an example of the use of a contingency table from the internet. Describe what it was testing for and what the result was.
Results from survey of 1000 respondents, point out that 545 favour the dealth penalty for capital crimes. By using a90% confidence level. Create confidence interval estimate for population proportion.
The president of the American Insurance Institute wants to compare the yearly costs of auto insurance offered by two leading companies.
In a study of hypnosis, breathing patterns were observed in an experimental group of subjects in a control group. The measurements of total ventilation (liters of air per minute per square meter of body area) are shown below.
Professor Jennings claims that only 35% of the students at Flora College work while attending school. The dean thinks that the prof. has underestimated the number of students with part-time or full-time jobs.
A manager wishes to find out whether there is a relationship between the number of radio ads aired per week and the amount of sales (in thousands of dollars) of a product. The data for the sample are shown below. a) Draw the scatter plot for the v..
In a sample of 476 adults selected randomly from one town, it is found that 9 of them have been exposed to a particular strain of the flu. Find the Pvalue for a test of the claim that the proportion of all adults in the town that have been exposed..
There are three nursing positions to be filled at Lilly Hospital. Position one is the day nursing supervisor; position two is the night nursing supervisor; and position three is the nursing coordinator position.
A silver dollar is flipped twice. Calculate the probability of each of the following occurring:
Form the cumulative percentage distribution and plan a cumulative percentage polygon.
A financial planner wants to compare the yield of income and growth mutual funds. Fifty thousand dollars is invested in each of a sample of 35 income and 40 growth funds
Two men are carrying a girl on a large plank that is 10m long and weights 200N. If the girl on a plank weighs 445N and sits 3m from one end, how much weight must each man support?
What is the purpose of statistical estimation? What statistics do you find most useful in regression analysis? Why?
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