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Question: A chi-square goodness-of-fit test is to be conducted to test whether a population is normally distributed. No statement has been made regarding the value of the population mean and standard deviation. A frequency distribution has been formed based on a random sample of 1,000 values. The frequency distribution has k = 8 classes. Assuming that the test is to be conducted at the α = 0.10 level, determine the correct decision rule to be used.
What is the appropriate conclusion based on the outcome of the hypothesis test?
Draw a histogram showing the 20 sample means. (Use classes -0.5 to 0.5, 0.5 to 1.5, 1.5 to 2.5 and so on). Describe the distribution of the x-bars that you see in part b (shape of distribution, center, and the amount of dispersion).
Also, if the standard deviation of all pumps σ is unknown, is there an easier formula to estimate the sample size to control the width of the confidence interval? Please explain it.
Using a grammar for the C programming language, try to extend the syntax to allow nested function definitions. For example, you might allow function definitions to occur inside any compound statement. Report on any difficulties you encounter, and ..
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consider the probability function. give your answers correct to two decimal places. rx 0.2 for x 0 1 2 3 4 a find the
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one slot machine pays off 12 of the time while the other pays off 14 of the time. we pick one of the machines and play
the data from an independent-measures research study produce a sample mean difference of 6 points and an estimated
a car manufacturer claims that the miles per gallon for a certain model has a mean equal to 40.5 miles with a standard
A very large shipment of parts contains 10% defectives. 2 parts are chosen at random from the shipment and checked. Let the random variable X denote the number of defectives found. Find the probability distribution of this random variable.
What does it mean if we have an alpha value of 0.05? How about if we have an alpha value of 0.10? Is this value set for us or do we as researchers choose it ourselves? If we do choose it, what criteria do we use? answer the questions and show all ..
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