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Write out expressions for all sums of squares (in terms of the temperatures yijk m , using the dot-and-bar notation), including the (corrected) total sum of squares and error sum of squares. Also specify their corresponding degrees of freedom. (d) For each term in the model (except the overall mean and error), use the rules to nd an F -statistic for testing whether the term is present, assuming an unrestricted model. Do any of your answers change if you assume a restricted model instead?
Thirty randomly selected students took the calculus final. If the sample mean was 79 and the standard deviation was 8.5, construct a 99% confidence interval for the mean score of all students.
A personnel manager for a large corporation feels that there may be a relationship between absenteeism and age and would like to use the age of a worker to develop a model to predict the number of days absent during a calendar year.
Since she is allowed to reserve one time if her first serve is out what should her serving strategy be?
Found mean number of sticks of gum chewed per day was 9. Standard deviation of population is 1. At α = 0.05, is number of sticks of gum person chews per day actually greater than 8?
Employ a four period moving average and determine the forecasted demand for August. Put your answer in the form xx.x with no additional numbers or symbols.
The probability distribution of the daily demand for a product is shown below. What is the expected number of units demanded per day? Determine the variance and the standard deviation.
Using the data, construct a 95% lower confidence interval on mean battery life. Why would the manufacturer be interested in a one-sided confidence interval?
Use the Standing data set to develop a point estimate of the number of minutes during an NFL game that players are standing around between plays. Round your answer to two decimal places. What is the sample standard deviation? Round your answer to ..
Conditional and compound probabilities.The table below gives the distribution of blood types by gender in a group of 1000 individuals.
Find out correlation coefficient r, If student take 35 minutes to complete exam, what is his predicted score.
The number of cars arriving at Joe Kelly's oil change and tune-up place during the last 200 hours of operation is observed to be the following.
At the .05 significance level, is the number of units produced on the afternoon shift larger?
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