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The weight of an almond is normally distributed with mean 0.05 ounce and standard deviation of 0.015 ounce. Find the probability that a package of 100 almonds will weigh between 4.3 and 5.3 ounces. That is, find the probability that x¯ will be between 0.048 and 0.053.
A researcher is evaluating the influence of a treatment using a sample selected from a normally distributed population with a mean of µ = 80 and a standard deviation of σ = 20. The researcher expects a 12 point treatment effect and plans to use a ..
A random sample of 16 ages is drawn from the population, and we find the sample mean of these observations to be μ = 8.76
Describe the difference between sample and a sampling distribution. Your reply must be in complete sentences and you may use sketches to help you.
In the design of the robot to insert the small cylindrical part into a close-fitting circular hole, the robot arm must exert a 90-n force p on the part parallel to the axis of the hole as shown. Determine the components of the force which the part..
A business journal investigation of the performance and timing of corporate acquisitions discovered that in a random sample of 2,863 firms, 848 announced one or more acquisitions during the year 2000.
Be sure the appropriate assumptions and conditions are satisfied before you proceed.
Given that both balls selected are white what is the probability that bowl 3 was selected?
What is the probability that the police will strike and the firefighters will not? What is the probability that the firefighters will strike and the police will not?
Use a 5% significance level to test the claim that there appears to be a difference in the effectiveness of the two diets.
Evaluate the value of population proportion. Develop a 99% confidence interval for population proportion.
The analysis of covariance (ANCOVA) is generally useful for _______________
Does this sample prove a violation of the guideline that the average patient should pay no more than $250 out-of-pocket?
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