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The associated press reported that 71% of americans ages 25 and older are overweight. assume this is true. a random sample of 12 adults 25 or older is selected from general population. what is the probability that you have less than 15%snickers in your bag?
Proportion of out-of-tolerance items is greater than 0.02, the robot will be overhauled. Otherwise it will be allowed to continue operating. What is the probability that a satisfactory robot will be overhauled unnecessarily?
A national survey is conducted to assess the association between hypertension and stroke in persons over 55 years of age. Compute the incidence of stroke in persons over 55 years of age
Given: You are using a significance level of α = 0.05 to test a claim that p > 0.5. Your sample is a simple random sample of size n = 49. Calculate β for the test, assuming that the true population proportion is 0.7 and showing all work.
The average weight is 215 pounds and the standard deviation is 15 pounds. Approximately how many players had weights between 215 and 225 pounds?
A research analyst regresses the number of calls for service (Y) on the Fahrenheit temperature at 4:00 in the afternoon (X). The regression equation finds: Y = 62 + 2.4 X with an r 2 of .67
Suppose the Doctor would be content with 95% confidence. How does the decrease in confidence affect the sample size required?
Determine odds student gets more than 14 questions correct? Determine the odds student gets exactly 12 questions correct?
Describe the five steps of hypothesis testing. Compare Type I and Type II errors and give specific examples for each. Which error should be minimized the most and first?
Given 5,000 light bulbs from an outside supplier. If past performance data indicates that these have been 3% defective, and a random sample of 40 parts are drawn from the shipment what is the probability that you will find more than 2 defective pa..
Create the estimated regression equation by calculating the values of b 0 and b 1
Does this sample prove a violation of the guideline that the average patient should pay no more than $250 out-of-pocket?
Suppose a product must go through a sequential assembly line made up of ?ve operations. The time it takes to complete each operation is normally distributed with a mean of 180 seconds and standard deviation of 5 seconds.
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