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A precision instrument is guaranteed to read accurately to within 2 units. A sample of four instrument readings on the same object yielded the measurements 353, 351, 351, 355.
a.) Test the null hypothesis that? = 0.7 against the alternative ? >0.7 Use alpha = 0.05
b.) What is the 95% CI for sigma?
c.) What is the critical value?
d.) What is the correct decision?
suppose x is uniform on 01 and y x. find the joint distribution function of x and
a quality control test has five equally likely outcomes - a b c d and e.a what is the probability of c occurring?b what
Use these statistics to construct a 94% confidence interval for the mean monthly consumption for the population of all Ontario households.
Conduct a two-sample test of means. A study by a bank compared the average savings of customers who were depositors for three years or less with those who had been depositors for more than three years.
Robinson & Associates performs employment screening for large companies in southern California. It usually follows two-step process. First potential applicants are given a test that covers basic knowledge and intelligence. If applicants score b..
Permutation chi square test to a regular chi square table test. What happens in situations, where assumptions of a chi square test are violated? Discuss.
researchers have suggested that the acidity (pH)of rainfall in the shenandoah Mountains can be described by the Normal model N(4.9,0.6). What is the IQR for the pH of rainfall?
The producers of a new toothpaste claim that it prevents more cavities than other brands of toothepaste. A random of 60 people used the new toothpaste for 6 months.
daves photography store stocks a particular model camera that can be ordered weekly. the demand for this camera is
What is true about the two values
What is the probability that the sample will have between 50% and 60% of the identifications correct? What is the probability that the sample percentage of correct identifications is greater than 65%?
When would you use a hypothesis test for the difference in two population proportions at your place of employment, in your education, or in politics?
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