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Explain why MS-within is not an appropriate error term (demoninator) for the repeated measures F-ratio
In a published study the author has presented a scatter plot of data with a line drawn through the data points. this line is describded as the best fitting line based on least squared error. What is
Why is the t-test more widely useful for hypothesis testing compared to a z-score
You need to estimate the mean number of travel days per year for outside salespeople. The mean of a small pilot study was 120 days, with a standard deviation of 16 days. If you must estimate the p
What value is expected on average for the F-ratio in ANOVA when the null hypothesis is true. EXPLAIN why this value is expected.
According to the Insurance Institute of America, a family of four spends between $400 and $3,800.00 per year on all types of insurance. Suppose the money spent is uniformly distributed. What is the
You plan to conduct a survey to find what proportion of the workforce has two or more jobs. You decide on the 99% confidence level and state that the estimated proportion must be within 3% of the po
Use table to find each critical values: Use table to find each critical values:
Suppose that the life span of a certain type of fan has an exponential distribution with a mean life span of 25000 hours. Find the probability thaat a randomly selected fan will last
If we reject the null hypothesis what can we conclude subject to the ? risk?
A pharmaceutical company receives large shipments of ibuprofen tablets and uses this acceptance sampling plan: randomly select and test 23 tablets, then accept the whole batch if there is at most on
The television show Pretty Betty has been successful for many years. That show recently had a share of 16, meaning that among the TV sets in use, 16% were tuned to Pretty Betty. Assume that an adver
Assuming the population is roughly symmetric, construct a 95% confidence interval for the mean annual consumption of alcoholic beverages by European young women (to 1 decimal).
Is type of restaurant factor in overall customer satisfaction. Predict the Consumer Reports customer satisfaction score for a seafood/ steakhouse that has an average meal price of $20. How much woul
What is the standard error of the proportion if samples of size 100 will be used for statistical process control (to 4 decimals)?
Can we conclude from these data that the mean tensile strength for the population is less than 20 pounds? Assume that the tensile strengths are approximately normally distributed. Let alpha = 0.05.
Create the regression equation that predicts an indivisuals political attitudes based on the number of times thhey read the wall street Journal (in months)
Two students from a certain university are randomly selected from all other students who attend that university. The two students do not know each other. Let a= the first student has taken statistic
A poll is given, showing 25% are in favor of a new building project. If 9 people are chosen at random, what is the probability that exactly 5 of them favor the new building project?
A bag contains 6 red balls, 12 blue balls, 7 yellow balls, and 4 green balls. Gary reaches in and pulls out one ball. If gary pulls out a blue or a green ball, he wins. What is the probability that
A study of 35 golfers showed that their average score on particular course was 92. The standard deviation of the sample is 5. Find the best point estimate of the mean?
Develop the estimated regression equation that can be used to predict the coachs salary given the revenue generated by the program and the percentage of wins.
A simple random sample of 60 items resulted in a sample mean of 80. The population standard deviation is 18. Compute the 95% confidence interval for the population mean (to 1 decimal).
Suppose that the service rates at the three stands are large enough so that a stationary distribution exists. At what rate do the three stands make sales. To check your answer note that since each e