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To test whether the mean length is signficantly less than a given value.
During recent seasons, Major League Baseball has been criticized for the length of the games. A report indicated that the average game lasts 3 hours and 30 minutes. A sample of 17 games revealed the following times to completion. (Note that the minutes have been changed to fractions of hours, so that a game that lasted 2 hours and 24 minutes is reported at 2.40 hours.
2.98
2.4
2.7
2.25
3.23
3.17
2.93
3.18
2.8
2.38
3.75
3.2
3.27
2.52
2.58
4.45
2.45
Can we conclude that the mean time for a game is less than 3.50 hours? Use the .05 significance level.
What is Excel formula in B9 giving first value of coefficient in the objective function?
The standard deviation of grade points was 0.65 and the mean was 2.89. The standard error for the sample was
This model is fit to the data using the method of least squares using statistical software, and the following ANOVA table is obtained
Can we conclude that mean time for game is less than 3.50 hours? Use.05 significance level.
Would the null hypothesis be accepted or rejected in this case?
Determine the probability of examining a sample mean weight from any 20 women chosen from this population that is less than S (your sample mean) by using population standard deviation?
Compute the standard error of the sampling distribution of sample means.
Assume that the process is in control and that the population of all jar fills is normally distributed.
Compute the effect size with gender as the grouping variable and ADDSC as the dependent variable.
Calculate the mean and standard deviation of the following data sets, then produce a five number summary and box plot of data.
At the .01 significance level, is there a difference in the use of the four entrances?
Would it be reasonable to conclude that the population mean is 63 pounds?
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