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1.) The mean number of English courses taken in a two-year time period by male and female college students is believed to be about the same. An experiment is conducted and data are collected from 29 males and 16 females. The males took an average of three English courses with a standard deviation of 0.8. The females took an average of four English courses with a standard deviation of 1.0. Are the means statistically the same? 2.) A student at a four-year college claims that mean enrollment at four-year colleges is higher than at two-year colleges in the United States. Two surveys are conducted. Of the 35 two-year colleges surveyed, the mean enrollment was 5,068 with a standard deviation of 4,777. Of the 35 four-year colleges surveyed, the mean enrollment was 5,466 with a standard deviation of 8,191. I need these to be solved showing all the work, no calculators "These are to be complete Hypothesis test starting with Ho & Ha and ending with a decision based on the rejection region or the p-value." "Find Z (crit) for two tail test withα =.05"
According to a recent newspaper report the average starting salary for recent graduates in Electrical Engineering is at least $62,450.The Placement Director at Supreme State University would like to test the accuracy of the newspaper report. Th..
5. Sixto Sanchez is the owner of Suburban Stylists. He is evaluating the service level provided to walk-in customers. Because he is enrolled in an MBA program at Eastern University, Sixto decides to sample walk-in customers for the next two w..
SPC is one of a number of tools which can be used to improve manufacturing quality standards - Outline two techniques which can be used to decide where to put SPC effort most effectively.
A researcher has been hired by a pizzeria to determine which type of crust customers prefer. The restaurant offers three types of crust: hand-tossed, thick, and thin. Following are the mean number of 1-inch pieces of pizza eaten for each condition fr..
Computer analyses typically provide a p-Value for each partial regression coefficient. In the case of b_1, this is the probability thatβ_1 = 0b_1 = β_1the absolute value of b_1could be this large if β_1= 0the absolute value of b_1could be this large ..
1.multiple choice1 medical care and compensation costs for workers injured on the job vary and are strongly skewed. the
Explain the assumptions underlying the two-sample test of means.When can one assume normality for two proportions?
Generate syntax and output files in SPSS. You will need to copy and paste these into your Application document. Use one kind of chart (any kind) to describe the data
How do small companies compare to the major competitor and Has satisfaction with the manufacturer changed since the change in company ownership?
Relationship between the average Wonderlic score and graduation rate?
amount of time spent studying each day for local and overseas students aspire llp is a recruitment agency. recently
Calculate the correlation between pretest and posttest scores separately for each gruop and determine sperately for each group whether performance improved from pretest to posttest
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