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Day 1 dose 123
Day 2 dose 139
Day 3 dose 85
Day 4 dose 133
Day 5 dose 91
Day 6 dose 110
Day 7 dose 118
What is the 95% one-sided confidence interval for the average worker?
What is the 95% predicted dose for a 95% one-sided confidence interval?
How many departments would they need to survey to achieve this level of accuracy with 95% confidence?
Obtain a test statistic and p -value assuming equal variances. Interpret these results.
Suppose a sequence of independent trials is performed where each trial results in either success or failure. Suppose X=the number of failures before the first success, with p=probability of success on any one trial.
What are the primary advantages and disadvantages of employing sampling in this application?
This is an Excel sheet that calculates both probabilities and percentiles for any normal or standard normal probability distribution. Replaces normal probability tables.
The personnel director of Cander Machine Products is investigating perfectionism on the job. A test designed to measure perfectionism was administered to a random sample of 18 employees.
The average stock price for companies making up the S&P 500 is $30, and the standard deviation is $8.20. Assume the stock prices are normally distributed.
A group of day to day workers can work either 0 hours, eight hours or 12 hours at a pay rate of $9.75 per hour. (The 12 hour day pays regular time for the first eight hours and double time for the remaining four hours.
What sample size would be needed to estimate he population mean to within one-half standard deviation with 95% confidence?
Cores on two tests have a bivariate normal distribution; and that correlation of 2 scores is 0.8. Determine the probability that sum of the student's scores on 2 tests will be greater than 200?
If the life of wild pheasants follows a normal distribution with a mean of 9 months and a variance of 9, what percent of the population will be less than 11 months of age?
Find a 95% confidence interval for the long-run proportion of new product placements?
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