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Question: Graph a relative frequency histogram for the 500 measurements summarized in the accompanying relative frequency table.
Measurement Class Relative Frequency
5-2.5 .10
2.5-4.5 .15
4.5-6.5 .25
6.5-8.5 .20
8.5-10.5 .05
10.5-12.5 .10
12.5-14.5 .10
14.5-16.5 .05
Perform the appropriate test for a difference in mean blood glucose and report the p-value for the two-tailed test of significance, assuming that the variances are equal.
Using a 5% level of significance, can we say that, generally there is important difference between satisfaction levels of mid country residents and coastal residents?
The value of R-square indicates the amounts of variation in the dependent variable that is explained by the independent variable.
Now compute the standard deviation for this distribution.
If life of wild pheasants follows a normal distribution with a mean of 9 months and a variance of 9, what percent of the population will be less than 11 months of age.
At the .05 significance level, can we conclude that the guideline is still reasonable?
In the following observational studies, describe changes that could be made to the data collection process that would result in an experiment rather than an observation study. Also, offer suggestions about unseen biases or lurking variables that m..
For following two regressions describe and interpret major parts from regression output. write down the difference between two regressions?
Run an ANOVA using only groups 1 to 6 (You can hide group 7 from the analysis by data followed by select cases and then you filter out group 7 by if GROUP~= ). Also run the posthoc tests LSD and Bonferroni.
Soft Drinks a vending machine automatically pours soft drinks into cups. As the amount of soft drink dispensed into a cup is normally distributed
National average for 2-year leases is 30,000 miles. Select the suitable hypothesis.
Standard deviation was increased to 40, determine the overall effect on their society? Would this change be a good thing?
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