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Amazon's new beer production line is being tested before product launch. Each bottle must have 12 ounces (more = higher cost, less = unhappy customers). A sample of 100 bottles resulted in an average of 12.14 ounces. The known standard deviation for that type of production equipment is 0.8 ounces. They believe their process meets the target and should go ahead and launch the product, including drone deliveries of beer.
a) Develop the null and alternative hypothesis.
b) What is the p-value?
c) At a = 0.1 what is your conclusion?
d) At a = 0.01 what is your conclusion?
e) What are the confidence intervals at the 90% and 99% levels? Can you draw the same conclusions?
Given that P (A) = 0.7, P (B) = 0.5, and P (A B) = 0.8. Find the following probabilities:
Asthma is a reemerging health problem among children. In one experiment, a group whose attacks began before age 3 was compared with a group whose attacks.
Suppose we randomly sample 400 nucleotides from the human genome. (Consider only a single strand.) Does the occurrence of adenine, thiamine, cytosine and guanine (A, C, T and G) in this sample suggest that nucleotides in the human genome follow a ..
the ages of subscribers to a certain mailing list are normally distributed with mean 35.5 years and standard deviation
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a. Find a 95% confidence interval for the proportion of parents who that that violence in today's video games is a problem. b. Convert the estimate and your confidence interval to percents. c. Discuss reasons why the estimate might be biased.
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3% from excise taxes and 5% other. If a revenue source is selected at random, what is the probability that it comes from individual or corporate income taxes?
a 90 confidence interval for the mpg of the ford c-max is 40.59 45.01. this interval is based on n 10. if we computed
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