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Group of 30-year-olds is interviewed to determine whether the type of music most listened to by people in their age category is independent of the geographic location of their residence. Use the chi-square test of independence, = .01, and the following contingency table to determine whether music preference is independent of geographic location.
Type of Music Preferred
GeographicRegionRock R & B Country ClassicalNortheast 140 32 5 18South 134 41 52 8West 154 27 8 13
Round the intermediate values to 2 decimal places. Round your answer to 2 decimal places, the tolerance is +/-0.05.
Observed =Type of music preferred is independent or not independent of region of the country?
Critically discuss the difference among strategic, long-term, and short-term objectives? What is the relationship between objectives and goals? What are examples of this relationship?
In a lengthy manuscript, it is found that only 2/3 of the pages contain no typing errors. Assume that the number of errors per page has a Poisson distribution.
Please describe and define what the chi-square analysis is, the conditions under which it is used, and how it compares to the Pearson Correlation.
A professor receives, on average, 24 emails from students the day before the midterm exam. To compute the probability of receiving at least 10 emails on the next day before the midterm she would use which probability distribution?
Find a 95% confidence interval for the long-run proportion of new product placements?
Assume that the significance level is a= 0.1. Use the given information to find the p-value and the critical value (s). With H1: p = with line through it 1/2 the test statistic is z= - 1.35
Determine the probability of choosing the area code at random which ends in the odd number if first digit cannot be 1 or 0?
In the study of 15 taxi drivers, average experience was 11.2 years. Standard deviation was 2. At α = .10, is number of years' experience of taxi drivers really less than taxi company claimed?
A firm plans to hire 100 employees during the year. It expects that 25 of these employees will obtain graduate degrees within the next 5 years of being hired. In addition, 35 employees will leave the firm within 5 years.
If the test is positive, what is the probability that this person actually has heart disease?
Explain the organization, inventory problem it faces, and expected benefits which are motivating organization to implement a solution.
Compute test statistic for sample data that you would use to test whether sample mean varies from population mean of 10 pounds at a 5 percent level of significance in two-tailed test.
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