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Auto crank shafts:
Here are measurements (in millimeters) of a critical dimension for 16 auto engine crankshafts:
224.120 224.001 224.017 223.982 223.989 223.961
223.960 224.089 223.987 223.976 223.902 223.980
224.098 224.057 223.913 223.999
The dimension is supposed to be 224 mm and the variability of the manufacturing process is unknown. Is there evidence that the mean dimension is not 224mm?
The p-value of the test is closest to:
a. 0.9289
b. 0.0431
c. 0.0134
d. 0.9019
Here is a scatterplot of average crawling age versus average outdoor temperature six months after birth followed by a plot of the residuals versus average outdoor temperature six months after birth.
Determine the values of mean M and standard deviation s for original sample?
Below you are given a partial computer output based on a sample of 16 observations.
Evaluate the difference in the mean ratings and find the standard deviation of the difference in the ratings, what is the chance both children are boys?
Any analysis required to check the required conditions (note that if you find that you cannot meet the required conditions for the test you expected to do, you must use the appropriate non-parametric test)
Your statistics instructor wants you to determine a confidence interval estimate for the mean test score for the next exam.
Determine the pairs which are significant according to LSD and what pairs are important according to Bonferroni?
Find the probability that in a given month:
The Pearson Product-Moment Correlation Coefficient (r) is a measure of linear relationship between two variables.
In a distribution of scores, the arithmetic mean is 51, the median is 55, and the mode is 62. What is the score, in percentile form, of a subject who does less well than two-thirds of the sample?
Determine the likelihood of accepting a lot which is 1% defective?
Create a set of n observations from the binomial distribution with 1 trial and the event probability of 0.007, where n is your answer.
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