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Q1) A student was asked to calculate mean and standard deviation for given sample of n = 5 81, 87, 89, 86, & 87. To simplify arithmetic, student first subtracted 80 points from each score to get a new sample consisting of 1, 7, 9, 6, & 7. Mean and standard deviation for new sample were then computed to be M = 6 and s = 3. Determine the values of mean M and standard deviation s for original sample? What occurs to mean when you subtract constant from each observation?
Q2) There are 2 various formulas or methods which can be used to compute SS.
a) Under what situation is definitional formula easy to use?
b) Under what situation is the computational formula easy to use?
How closely is the height of an individual related to the weight? Partial regression output for a sample of 92 individuals is below.
Take a confidence interval for the difference in the average of renting between the first andthird hotel.
An experiment was carried out to assess the effects of four tomato varieties and four planting densities on yield. There were 64 plots, and each of the 16 factor combinations was randomly assigned to 4 plots
What is the likelihood the sample mean is greater than $22.50 but less than $25.00?
The sampling distribution of the average score and Suppose x' is your average pay for the 100 weeks. Then x' has approximately
A normal distribution with a mean of 55 and a standard deviation of 6 is evaluated to solve a business problem.
Given the following data on hotel check-ins for a 6-month period:
Multiple comparison procedures are going to be done using the Bonferroni method with α = 0.10. The value of t** is 2.2426. The smallest minimum significant difference (MSD) for finding a difference between groups is computed as 17.68. The correct ..
Use a scatter plot to determine the relationship between the x values and the y values.
There were 25 subjects included in each of the combinations of gender and smoking status. One of the variables measured was the heart rate after six minutes of exercise. A two-way ANOVA is performed with the resulting ANOVA table given below
Which of the following would have a binomial distribution and evaluate the binomial coefficient
We are establishing a quality control program for a process and need to establish the mean and standard deviation for the process. The first 10 batches had samples of size 5 taken.
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