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Prior to a set of compensation policy changes at a company 29% of the employees surveyed said that they liked their job very much, 46% said that they liked their job moderately, and the remaining employees said that they were dissatisfied with their job. Now, in a survey of 207 employees, 62 said they liked their job very much, 104 said that they liked their job moderately, and the remaining employees said that they were dissatisfied with their job. When testing (at the 5% level of significance) whether the proportions have changed, what is the test statistic? (please round your answer to 3 decimal places)
a marketing survey involves product recognition in new york and california. of 558 new yorkers surveyed 193 knew the
Obtain a test statistic and p-value. Interpret the results. (c) Is normality assured? (d) Is the difference large enough to be important?
Patient's heart attack as mild, moderate or severe. The nurse's classification of the severity of the patient's heart attack is an example of what type of variable?
a physical fitness association is including the mile run in its secondary-school fitness test. the time for this event
1. of 900 customers surveyed 414 said they were very enthusiastic about a new home deacutecor scheme. construct a 99
A researcher wants to create a 99% confidence interval for the population mean. He has a sample of n=120, an x-bar of $340, and a sample standard deviation of $122. What is the margin of error?
If a group of 400 school children are selected at random, what is the probability that at most 70 children will miss school because of asthma?
Construct an ANOVA table to identify which of the effect estimates are statistically significant, Develop a model for the response based on the results of part and Construct an ANOVA table to see if the model developed suffers from lack of fit
assume that team a beats team b in 75 of the nba games they play against each other they play normal nba games i.e. 4
Suppose that a car rental agency offers insurance for a week that will cost $10 per day. A minor fender bender will cost $1,200 while a major accident might cost 10,000.
the claim is that the proportion of peas with yellow pods is equal to 0.25 or 25. the sample statistics from one
Determine the fraction of the time that no light bulbs are working.
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