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A brake assembly has been tested and found to have a capacity that is normally distributed with a a mean of 275 lb and a stadard deviation of 25lb. If a normally distributed force having a mean of 180lb and standard deviation of 30 lb is applied, what is the static reliability? As the variability ( variance) of either the strength or load increases, what happens to the the reliability?
What is the probability that a single, randomly selected piece of material will be defective? (Give the answer to two decimal places.)
A researcher conducted an experiment on the effects of a new multivitamin on energy level, with a control group (received nothing), a placebo group
a professor measures the time x that students take to complete an examination and the score y that the students
Determine the p-value; and at 95% confidence, test the above hypotheses.
How would you interpret the findings of a correlation study that reported a linear correlation coefficient of +0.3?
Determine what analysis would you do on each problem (ie, one-sample z-test, one-sample t-test, proportion test, two-sample independent t-test, or paired test)?
Craft one page brief of the statistical results (include any additional pages needed for any APA tables or graphs and the SPSS syntax and output) in which you do the following:
elizabeth has just put 4 new spark plugs in her car. for each spark plug the probability that it will fail in the next
What percentage of bags will weigh more than 16.4 ounces? What percentate of bags will weigh less than 15.92 ounces
a health researcher read that 200 lb man can burn 546 calorieshour playing tennis. 36 man sample withe a mean of 544.8
in an experiment to learn if substance m can help restore memory the brains of 20 rats were treated to damage their
In 1978, the CPI for Canada was 43.6, but in 1988, the CPI was 84.8. What was the geometric mean annual increase for the period?
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