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An electronics firm mass produces a component for which there is a standard measure of quality. Based on testing vast numbers of these components, the company has found that the average quality is µ = 232 with σ = 4.
However, in recent years the quality has not been checked, so management asks you to check its claim with the goal of being reasonably certain that an average quality of less than 232 can be ruled out.
That is, assume the quality is poor and in fact less than 232 with the goal of empirically establishing that this assumption is unlikely. You get X = 240 based on a sample n = 25 components, and you want the probability of a Type I error to be .01. State the null hypothesis and perform the appropriate test assuming normality and σ = 4.
If he calls on four potential clients, what is the probability that he makes exactly 3 sales? What is the probability that he makes exactly 4 sales?
HI6007 SPSS Assignment 02. The data set you need to do the assignment can be found on Blackboard in the folder "Assignments and due dates" and in the spreadsheet "Data for Assignment 2". What is the significance value? What does the significance va..
assume that the salaries of elementary school teachers in the united states are normally distributed with a mean of
In each of the following cases. find the mean , variance and standard of the sampling distribution of sample proportion p.
the effectiveness of treating respiratory infections with herbal remedies was studied. days of fever was used to
Suppose that a certain college class contains 45 students. Of these, 26 are sophomores, 25 are chemistry majors, and 7 are neither. What is the probability that the student is both a sophomore and a chemistry major?
a dj plays 3 songs and 4 commercials in 20 minute session. if the order is song commercial 2 songs 3 commercial how
Find the minimum sample size required to estimate the percentage of college students who use loans to pay for college.
Like power, the term politics in organizations may conjure up a few negative images. However, organizational politics is not necessarily negative. Rather it is the use of power and influence in organizations.
He (given that) the true proportion of perfect condition items is only 80% what is the probability that the lot will not be shipped?
in a recent year deleware had the highest per capita annual income with 51803 . standard deviation 4850 find the mean
The managers in a company’s East and West regions were rated on the basis of the company’s evaluation system. A researcher wishes to conduct a t-test of means to determine if there is a difference between the East and West regions. Perform this calcu..
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