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Q1) State meal inspector in lowa has been given assignment of estimating mean net weight of packages of ground chunk labelled "3 pounds". Of course, he realizes that weights can't be precisely 3 pounds. Sample of 36 packages reveals mean weight to be 3.01 pounds, with standard deviation of 0.03 pounds.
a) What is the estimated population mean?
b) Find out a 95 percent confidence interval for population mean.
Suppose that an IQ test was given to a large group of persons, the scores are assumed to be from a normally distributed population, that mean = 100 and s (standard deviation) = 15.
How does the bell-shaped curve for the sampling distribution of sample means for samples of size n = 100 compare to the bell-shaped curve for sampling distribution of sample means for samples of size n = 60.
Do students tend to improve their SAT Mathematics (SAT-M) score the second time they take the test? A random sample of four students who took the test twice received the following scores
To test is there any significant difference among two proportions. The Damon family owns a large grape vineyard in western New York along Lake Erie.
Among 500 freshmen pursuing a business degree at a university, 347 are enrolled in an economics course, 204 are enrolled in a mathematics course, and 160 are enrolled in both an economics and a mathematics course.
Use this information to construct a probability table, and then calculate each of the following probabilities:
What is the probability you pick a plum and Which of the following is a legitimate probability distribution for this situation
Assume a business researcherwishes to test hypothesis that greater proportion of marketing managers keep track of such obligations.
Multiple choice question using Forecasting techniques. Which among of the following models are best suited to forecast a time series with a stable seasonality component.
At the 5 percent level of significance, can we conclude that the mean weight is greater than 16 ounces? Determine the p- value.
If a proposal evaluator randomly selected two proposals, what is the probability that both of them met the specified?
Book inventory Record information - Ratio, interval, nominal or ordinal.
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