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Describe the distribution of sample means (shape, expected value, and standard error) for samples of n=36 selected from a population with a mean of µ=100 and a standard deviation of σ=12.
In the prime factorization of an integer, what is the maximum number of prime factors greater than the square root of that integer? If there is a prime factor greater than the square root of that integer
The quality control inspector of a production plant will reject a batch of syringes if 2 or more defective syringes is found in a random sample of 8 syringes taken from the batch. Suppose the batch 1% defective syringes.
Please share 3 real world examples of problems, which occurred due to the use of secondary data. Be specific about the consequences as well the secondary data used. You may use your own organization or research the net or literature for this one.
Based on the information in part (a), what decision should the director make about the books used for the courses if the goal is to keep the cost below $300?
Suppose a simple random sample of 30 days is selected for observation. What is the probability that the sample mean for the 30 days will be between 300 and 340 books?
The world record time (in minutes) in the marathon is plotted versus the year in which the record was set for men and women separately. The plotting symbol o is used for men and x for women. The data include only records set between 1908 and 1988.
Calculate a 92% confidence interval for the mean density of quartz porphyry, given that 75 samples yield mean of 2.62 grams per cubic centimeter
One of the non-destructive tests (NDTs) for assessment of the integrity of concrete structures is ultrasonic pulse velocity testing. The test can signal that a concrete section is either intact or that a problem exists.
Based on a simple random sample of one hundred an analyst estimates the average hourly wage earned by workers in a city to be $30 and computes the margin of error to be $5.
Describe whether the data appear to be approximately normally distrusted by .. a. Comparing data characteristics to theoretical properties.
If random samples of 36 download times are selected, what is the probability that the sample mean will be less than 0.84 seconds?
The National Collegiate association (NCAA) reported that the mean number of hours spent per week on coaching and recruiting by college football assistant coaches during the season 70.
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