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The annual turnover rate of the 200-count bottle of aspirin follows the normal distribution with a mean of 6.0 and a standard deviation of 0.50. (This indicates that the stock of asprin turns over on the pharmacy shelves an average of 6 times per year.) It is suspected that the mean turnover has changed and is not 6.0. Use the .05 significance level.
A random sample of 64 bottles of the 200-count size asprin showed a mean turnover rate of 5.84. Shall we reject the hypothesis that the population mean is 6.0? Interpret the result.
what is the sample space of all possible outcomes? Are the outcomes equally likely?
If the estimate is to be within 8 mpg of the true mean with 98% confidence and the estimated standard deviation is 22 mph, how large a sample size must be taken?
Describe your answer to a person who has never had a course in statistics.
Explain why we need to use the t distribution. What assumption do you need to make?
The management of a regional bus line thought its cost of gas might be correlated with its passenger/mile ratio. Comment on the data and correlation matrix below.
Suppose there is no cyclical component. Quarterly billing for water usage is shown below describe summer billing for year 5.
MATH1550H: Assignment:Questions: (Genetics) What is the probability that at most two of the offspring are aa?
In this paragraph, be sure to make it clear how you handled the issue of conducting three planned comparisons. Also provide the ANOVA summary table for these results.
What is the probability that all three students pick exactly the same card?
Illustrate what does weighting add to usefulness of moving averages and explain how is it done. The yield on a thirty year treasury note at the end of every year since 1990 is recorded below.
Based on the expected value of the lottery ticket, would you pay $1 for a ticket? Round the answer to 3 decimal places. Omit the "tiny_mce_markerquot; sign in your response.)
If garage is robbed, determine the probability doors were left open?
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