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Soda cans of a certain kind are labeled as containing 12 ounces. A quality control inspector believes that the mean weight may be more than this, so she performs a hypothesis test Ho: mean=12 vs H1: mean > 12 she rejects the null hypothesis. what conclusion is based
Nut problem: Manager claims 336g and a population standard deviation of 11g. We sample 64 bags and find
Pregnancy. In 1998 a San Diego reproductive clinic reported 42 live births to 157 women under the age of 38, but only 7 successes for 89 clients aged 38.
Make a List of type of possible errors. Assume that you were interested in knowing the mean score for a certain quiz in a statistics class.
How many of those meals should he plan on serving in order to be pretty sure of having enough steaks on hand to meet customer demand? Justify your answer.
in an effort to estimate the mean amount spent per customer for dinner at an atlanta restaurant data were collected for
A researcher wishes to construct a 95% confidence interval for a population mean. She selects a simple random sample of size n=20 from the population.
assuming all test scores are different you would like to determine the relative test scores of three classmates using
Write a brief report describing the confidence interval and its role in the context of the article. Compare and contrast your responses.
What is the probability that a surveyed voter plans to vote to reelect the mayor?
suppose test scores for a test are uniformly distributed between 51 and 95. let xtest scores. what is the probability a
A hotel chain is interested in evaluating reservation processes. Guests can reserve a room by using either a telephone system or an online system that is accessed through the hotel's web site.
In standardized form, the normal distribution a) Has a mean of 0 and a standard deviation of 1 b) Has a mean of 1 and a variance of 0 c) Has an area equal to 0.5 d) Cannot be used to approximate discrete probability distributions
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