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A lady sells homemade bread at 50 locations in town. She is concerned about absenteeism with the workers. Below are the number of days for a sample of 10 workers for the last 2 week pay period
4
1
2
0
3
Determine the mean and the standard deviation of the sample.
Determine the probability that gas tank's capacity is above 15.25 gallons?
Compute the correlation and sample covariance. Compute the sample covariance and the sample correlation. Intuitively, what kind of correlation.
A better case can be made that observation 13 (Los Arboles) is an outlier. Describe what this means in plain terms.
Using the probabilities above what is the expected size of family you draw?
Does drug have significant effect on aggression? Use an alpha level of .05, two tails.
To find out the probability that the age of a randomly selected CEO. The average age of CEOs is 56 years. Suppose the variable is normally distributed.
A loan application is received this morning. What is the probability that:
At the 5 percent level of significance, can we conclude that the mean weight is greater than 16 ounces? Determine the p-value.
To test whether there is significant mean difference between two groups using independent sample t test.
Does the normal distribution yield a good approximation of the actual results?
Finding an X score. All Bright University will consider an applicant for its MBA program who scores 95 percent or higher on the GMAT exam. The mean and standard deviation, respectively, for this test are 578 and 94. What is the lowest score (X) th..
Now compute the standard deviation for this distribution.
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