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Assume that the weight of cereal in a "10-ounce box" is N( µ, ai). To test H0 : µ = 10.l against H1 : µ > 10.1, we take a random sample of size n = 16 and observe that = 10.4 and s = 0.4.
(a) Do we accept or reject H0 at the 5 percent significance level?
(b) What is the approximate p-value of this test?
For each marksman, the total score was recorded for shots fired during a heartbeat and for shots fired between heartbeats. Do the data belowindicate a significant difference? Test at the α = 0.05 level. Include a formal decision statement regardin..
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Suppose that a population is normally distributed with a mean of 100 and a standard deviation of 15. Would it be unusual for the mean of a sample of 3 to be 115 or more?
question the percentage of students in private school is about 11.in a sample of 450 students from different countries
The accompanying table summarizes randomly selected sample data for San Francisco Defendants in burglary cases.
Undergraduates at her college and mails a questionnaire to 250 students selected at random. Only 104 questionnaires are returned. what is the population.
A group of employees at a large factory was asked to indicate their preference for one of two pension schemes. The table below gives the responses of three different categories of employees at the factory.
Lengths of his classes are uniformly distributed between 45.0 and 55.0 minutes. Determine the probability that the given class period run less than 51.5 minutes.
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