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Manufacturing and Product Development
Bittersharp apple cider is made from apples that contain more than 0.45% malic acid. It is important for the variance in malic acid content to be small, because large variability may cause the resulting cider to be too sharp. In preparation for making a batch of cider, a random sample of 20 Foxwhelp Bittersharp apples was obtained, and the malic acid content in each was measured. The sample variance was s2 = 0.42.
a. Is there any evidence to suggest the population variance in malic acid is greater than 0.36? Assume the underlying distribution is normal and use a = 0.05.
b. Find bounds on the p value associated with this hypothesis test.
The aim of the assignment is to use methods in data exploration, presentation and statistical hypothesis testing to evaluate the implications of human activities for conservation management of IUCN Red-Listed grouper fish communities in a system o..
A researcher believes that younger people use more drugs than older ones. He samples 50 teens and 50 people in their thirties measuring the number of times subjects had used marijuana or cocaine in the past three months.
Plot these data and comment on the nature of relationship between the two variables under consideration - find correlation between (X, Y).
Find a 99% confidence interval for the population mean annual number of reported larceny cases in such communities. What is the margin of error? (Round your answers to one decimal place.)
suppose x is a discrete random variable with probability distributionx01fx1-ppin other words x is a bernuolli random
Are these results sufficient to conclude that the self-hypnosis has a significant effect? Assume that increasing and decreasing allergic reactions are equally likely if the training has no effect. Use an alpha of .05."
Which of the following survey questions will deliver an unbiased response? Should the city ban smoking in restaurants to protect our children from second hand smoke?
What is the probability that an acid solution made by the foregoing procedure will satisfactorily etch a tray? What would the answer to part (a) be if α = 1 and β = 2?
Bill is doing a project for you in the marketing department. In conducting his analysis regarding consumer behavior and a new product that has come out
For both airlines, (recall you already collected data on one airline in Module 1 and an additional airline as part of this assignment), construct 95 percent confidence intervals (alpha would equal what in this case?) for monthly load factors, mont..
a producer of a cartain type of electronic component ships to suppliers in lots of twenty. suppose that 60 of all such
Determine the probability that each of the 30 students will get computer in working condition?
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