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Calculate the mean and standard deviation of the following data sets, then produce a five number summary and box plot of data. Which numerical description (mean and standard deviation versus five- number summary) is more appropriate for each?
A) 4 0 1 4 3 6 7 3 8
B) 5 3 1 3 4 2 2 4 5
What is the sample space for this process and evaluate the variance of the intelligence scores
High levels of glucose in the blood are indications of diabetes, which is becoming more prevalent in the United States. Diabetes can lead to many complications such as blindness and heart disease. A random sample of 180 individuals had their blood su..
For a t distribution with 16 degrees of freedom, find the area, or probability, in each region.
Use frequency distribution to create a probability distribution, determine the (b) mean,(c) variance.
If the standard deviation is $89.46, find the probability that a randomly selected customer spends between $550.67 and $836.94.
For the 20 test scores shown, find the percentile rank for a score of 86.
At.05 significance level, is there a difference in mean number of calls per day between 2 employees? Compute the p -value?
A sample of 160 workers in the downtown area classified each worker by race. A bar graph of the results is given below, but the bar for black workers in the graph below has been omitted.
The 50 members of the placebo group had blood pressure lowered by an average of 15 points with standard deviation 8 points. To analyze this information we will use a, When testing whether or not the increases in spending are different, the test is ..
Perform a posthoc test that is suitable if we assume that group 7 is a control group and that the other are different treatment groups and that we are only interested in finding significant treatments, not to compare them.
How closely is the height of an individual related to the weight? Partial regression output for a sample of 92 individuals is below.
For the data giben below, prepare a R-chart. Note that the sample size is three.
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