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A survey of n = 703 randomly selected workers showed that 61% of those respondents found their jobs through networking.
(1) Please state the corresponding null and alternative hypotheses to determine if most (more than 50%) workers get their jobs though networking;
(2) Please find the value of the test statistic for the claim that most (more than 50%) workers get their jobs though networking.
The scatter diagram for data set below is shown. a) given that x= 3.667, sx = 2.5819889, sy= 1.5937377 and r= -0.8894261, find out least -regression line.
The following table lists the annual amounts of glass cullet produced by Kimble Glass Works, Inc. Determine the least squares trend equation. Estimate the amount of scrap for the year 2005.
The Internal Revenue Service (IRS) provides a toll-free help line for taxpayers to call in and get answers to questions as they prepare their tax returns.
To test whether or not there is a difference between treatments A, B, and C, a sample of 12 observations has been randomly assigned to the 3 treatments. You are given the results below.
What is the p-value and compute a 95% CI for the difference in means between the two groups?
Explain the difference between the null hypothesis and the alternate hypothesis. How is the null hypothesis chosen (why is it null)? What is the importance of rejecting the null hypothesis in relation of the sample to the population?
Use MegaStat's output for simple linear regression to determine the regression equation
Question: If the regression line is drawn as Y = C + 1075x, when X was 2 and y was 239, given that the intercept was 11. Calculate the residual
A company produces two products that are processed on two assembly lines. Assembly line 1 has 100 available hours, and assembly line 2 has 42 available hours.
If alpha level is changed from a = 0.05 to a = 0.01. What occurs to boundaries for critical region?
The President of the American Insurance Institute wants to compare the yearly costs of auto insurance offered by two leading companies.
A random sample of 13 four-cylinder cars is obtained and the breaking distances are measured and found to have a mean of 137.5 ft and a standard deviation of 5.8 ft.
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