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A local business school claims that its graduating seniors get higher-paying jobs than the national average for business school graduates. Last year's figures for salaries paid to all business school graduates on their first job showed a mean of $10.20 per hour. A random sample of 10 graduates from last year's class of the local business school showed the following hourly salaries for their first job: $9.40, $10.30, $11.20, $10.80, $10.40, $9.70, $9.80, $10.60, $10.70, $10.90. You are skeptical of the business school's claim and decide to evaluate the salary of the business school graduates using a 2-tail test with ? = 0.05. What do you conclude?
Score for the states eith graders on the examination is more than 260. At alpha equals 0.04 is there enough evidence to support the clim?
Compute an F-statistic for each linear construct and determine its significance.
a goodness-of-fit test is a nonparametric test involving a set of observed frequencies and a corresponding set of
Suppose an airport scanning device has 98% accuracy in detecting certain kinds of metal objects (98% of people carrying these objects are correctly identified as carriers and 98% of people not carrying them are correctly identified as non-carriers..
1. the ritz-carlton hotel used a customer opinion questionnaire to obtain performance data about its dining and
An analysis of variance was used to evaluate the mean differences from a repeated-measures research study. The results were reported as F(3,24)=6.40.
Based on this information, confidence level would be 90% that population mean is somewhere between?
Find the probability that not enough seats will be available. Is this probability low enough so that overbooking is not a real concern?
Also how inventory can act as a buffer in the production process. Discuss why it is sometimes prudent not to order the minimum level required to obtain a quantity discount.
Rank the funds by using this alternative measure of risk. Which, if any outperformed the market on the risk-adjusted basis.
In a sample of 80 mail carriers 16 had been bitten. At the 0.05 level of confidence, is there a significant difference in the proportions?
we select a sample of 56 oakton studens and ask if they have taken a mathe course at oakton. we find that 26 answer
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