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In pharmacological research a variety of clinical chemistry measurements are routinely monitored closely for evidence of side effects of the medication under study. Suppose typical blood-glucose levels are normally distributed, with mean =90mg/dL and standard deviation =38mgdL.
1) If the normal range is 65-120 mg/dL, then what percentage of values will fall in the normal range?
2) Frequently, tests that yield abnormal results are repeated for confirmation.What is the probability that for a normal person a test will be at least 1.5 times as high as the upper limit of normal on two seperate occasions?
At your place of employment, 100 employees are randomly selected and asked the distance of their communte to work. From this group a mean of 15.2 is computed. Identify the following as either?
He completed 1st seven times, 2nd three times, and one time each in 6th, 9th,12th, 15th, 22nd and 37t. Determine his median finishing position for the year.
What level of confidence is associated with an interval of .400513 to .515487 for the long run proportion of new product placements?
The standard deviation of the sample is 2.5 calls. Using the .05 significance level, can we conclude that the mean number of calls per salesperson per week is more than 44?
Discuss the ability of the process to meet the customer's specifications. Also, if the customer seeks Six Sigma compliance, what are your recommendations?
Perform an appropriate hypothesis test, showing the necessary calculations and/or explaining the process used to obtain the results any group over 30 needs z test.
With a Rejection Region of 8, 9 or 10, what is the probability of a Type II error, if the job applicant has a probability of identifying the odd sample with p = 0.5?
What is the probability that more than 585 of this year's entering class of 1807 will drop out during or at the end of their first year?
The study does provide sufficient evidence to support the claim that less than 75% of college student spend less than $250 per semester on textbooks.
A better case can be made that observation 13 (Los Arboles) is an outlier. Describe what this means in plain terms.
Either about $800,000 or about $2.2 million depending on which "average" it used. Which type of "average" does the $800,000 represents?
A manufacturing process produces items whose weights are basically distributed. It is known that 22.57% of all the items produced, weigh between 100 grams up to the mean and 49.18% weigh from the mean up to 190 grams.
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