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When determining the sample size necessary for estimating the true population mean, which factor is not considered when sampling with replacement?
a. the population size
b. the population standard deviation
c. the level of confidence desired in the estimate
d. the allowable or tolerable sampling error
Construct three scatter plots for: (1) percentage alcohol versus calories, (2) percentage alcohol verses carbobydrates, and (3) calories versus carbohydrates
You might find the probabilities using the Table or software of your choice. Please explain how you obtained your results.
Compute a 95% confidence interval for the mean difference in the percentage of bone loss between two groups.
Estimate the area under the Normal Distribution from the mean to a z-score of -2.07. Estimate the z-score that corresponds to an area of 0.5557 under the Normal Distribution.
The probability that the daily demand at this store is at least one and at most three is:
Graph the p.d.f and show that the probability of the part failing in the first 200 weeks is 1/8
Determine the mean annual amount spent on household consumption per family with a sample of 100 families, an average amount of $8,000 spent, and if the population standard deviation is $500,
Employees of a local university have been classified according to gender and job type. The following table provides data about the employees.
The diameters of ball bearings are distributed normally. The mean diameter is 74 millimeters and the variance is 16. Find the probability that the diameter of a selected bearing is less than 78 millimeters.
Describe the types of probability -example of classical probability, empirical probability, or subjective probability.
You know that all sociology majors study 2.5 hours per day with a standard deviation of 1.
Given length an athlete throws a hammer is a normal random variable with mean 50 feet and standard deviation five feet, what is the probability he throws it: Between 50 feet and 60 feet.
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