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Which of the variables below do you think will be roughly normally distributed? Please select all that apply.
a) Weights of 10 year old boys
b) Incomes of 40 year of adults.
c) The numbers that show up when you roll a die.
d) The amount of coffee which a filling machine puts into a 1 pound can.
95% confidence interval evaluate for proportion of Americans who believe Abraham Lincoln is United States' most outstanding President is 65% to 75%. If more precise estimate is requested, then confidence level.
Determine the pairs which are significant according to LSD and what pairs are important according to Bonferroni?
Find the critical value for t and determine the null and alternate hypothesis.
what size sample should the director choose if she wishes to estimate the mean number of admissions per 24-hour period to within 1 admission with 99 percent reliability.
What factors might cause the company to order a larger or smaller amount than the EOQ?
What contingency table test is used to see if there is a difference in the frequency distribution for two different groups?
a) Set up the null and alternative hypotheses, and perform the hypothesis test. b) Does the jury selection system appear to be fair?
When using past data, I have found that the proportion of items rejected by quality control personnel is about 3%. We normally make 5000 items per day. For a p chart, what are the upper and lower control limits?
If you were designing a study which group, a population or a sample, would you gather data from and why? Provide an explanation regarding whether or not the standard deviation is a biased or unbiased estimate.
How many dissimilar computer passwords are possible?
Perform the chi-square test for a uniform distribution. At α = . 01, does this sample contradict the assumption that readership is uniformly distributed?
What proportion of time will it take clean-up crew 56 or more hours for cleaning plant? Define the lower and upper limits of interval.
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