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A study was conducted to determine the effectiveness of a diet program in reducing weight of obeys people. Eight randomly selected patients were put on this diet and the amount of weight losses (in pounds) were recorded. Suppose the sample mean and the sample standard deviation of weight losses were 38 and 4.598136 pounds, respectively. Construct a 90% confidence interval for the average weight loss and based on the confidence interval constructed determine if you would expect to see an average weight loss of 35 pounds. (Assume that samples were taken independently from a normal distribution.)
suppose we know grades on final exam in a statistic course are normally distributed with a mean of 72 and standard
A basket contains 5 bananas and 5 apples. Each of ten people picks two fruits at random from the basket without replacement.
Trudeau Industries is an industrial contractor involved in the production of precision machined parts. Trudeau has received an order for 2,000 units per week
Probability using normal distribution.Sampling distributions. Given a normal distribution with μ = 50 and standard deviation σ = 9, if a sample of n = 100 is selected.
Determine the regression line relating time (X) to concentration of drug (Y). Determine a 99% confidence interval for the slope parameter 13.
If a class of 30 students is chosen at random from the university populaton, find the mean of the number of male students. Find the standard deviation of the number of male students.
Translate the following arguments into symbolic notation.- If sea levels rise twenty feet worldwide, then coastal cities from New York to Sydney will be inundated.
1. Does Steve need additional information from Iverstine and Walker?1. Does Steve need additional information from Iverstine and Walker?
We are interested in whether there is a relationship between the ranking of a state and the area of the state.
Surveys were mailed to 19,000 California doctors, and 2000 completed surveys were returned. Describe any concerns you have regarding the conclusion drawn.
SCMA 320 - Resource Bottlenecks. The mix is 60%/40%. Calculate the capacity of each resource pool for a 60% coffee, 40% latte product mix
Consider two corresponding x distributions, the first based on samples of size n = 49 and the second based on samples of size n = 81.
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