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Perform the appropriate test of hypothesis.
A market researcher predicts that the percent of households in a particular rural area that have no vehicle is at least 10 percent. In a random sample of 120 households, 6 households had no vehicle. Test the market researcher's prediction at the α = .10 level of significance.
Consider a plant with transfer function (s) = 1/(s - 1). Suppose a disturbance of form wet) = a sin(2t +?), with unknown amplitude a and phase ?a
fx k1-1x2 1 ? x lt 2 is the distribution function for a continuous random variable x. solve for the value of k and
What is the general purpose of the technique?- How does or should this help operations in general?- What are the limitations of the technique?
The waiting time for the elevator in HP building is found to be uniformly distributed between zero and 4 minutes. (NOTE: you must ?rst de?ne a random variable.)
To find weighted aggregate price index using Laspeyres and Paasche method.
What are the most common reasons you would select a non-parametric test over the parametric alternative?
Is there sufficient evidence to support a claim of a linear correlation between before/after weights? Does the value of r indicate that the program is effective in reducing weight? Why or why not?
At Kelsey High School, Mrs. O'brien noted that the students were waiting too long in line for their lunches. After collecting some data, Ms. O'brien determined the mean wait time was 10 minutes.
Mr. Smith had 11 stocks that averaged 11.3 percent with a standard deviation of 3.2 percent. At the .02 level of significance, can we conclude that Mr. Jones' stocks have a different variation?
Estimate with 90% confidence the difference in the level of satisfaction with service between the two branches.
For the probability function would you expect the variance to be larger or smaller than the variance associated with the probability function used in the previous exercise? Verify your answer by computing the variance.
If T = 6, would the researcher reject or fail to reject the null hypothesis? Explain.
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