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What is the advantage of using ANOVA to test for differences among treatment means rather than testing all possible pairs of treatment means?
Research the topic of Job Satisfaction and provide a 1 page write-up of the research highlighting where statistical analysis is being used and why it's used.
what does the p-value tell the business statistician especially in terms of the normal curve? if the p-value is smaller
Develop a 90% confidence interval for the true mean weight. What sample size would be necessary to estimate the true weight with an error of +/- 0.03 grams with 90% confidence?
In a local election in which everyone voted, 60 Republicans voted for the Democratic candidate, and 50 Democrats voted for the Republican candidate. If a randomly chosen community member voted for the Republican, what is the probability that she ..
What is the value of the population mean? What is the best estimate of the value?
When would it be appropriate to use attest for independent means? What is the key piece of information you must know in order to decide?
Identify a research issue, problem, or opportunity that uses either interval or ratio level data (Recall that ratio level data are those data which have an absolute zero.
Normally distributed with mean equal to 15,000 and standard deviation equal to 1000. What is the lowest income among the richest 250 persons?
BMI is measured in a sample of patients, with a mean of 31.7 and a standard deviation of 5.9. How many subjects would be needed to ensure that a 95% confidence interval estimate of BMI had a margin of error not exceeding 2 units?
a comparison between the average jail time of bank robbers and car thieves yielded the following results in yearsn180
Knowing nothing about any team, you flip fair coins to decide every one of your 63 bets. Compute the expected number of points
Identify the following as either (a) observation, (b) parameter, (c) population, (d) sample, or (e) statistic: All employees at that place of employment.
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