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Solve the following probability by using the central limit Theorem.
The mean undergraduate cost for tuition, fees room and board for four-year institutions was $26,489 for a recent academic year. Suppose that the population standard deviation equals $3204 and that 36 four-year institutions are randomly selected. Finding the probability that the sample mean cost of these 36 schools is between $24000 and $26000: P(24000<sample mean<26000)
A. Give a rough graph, and shade the desired area
B. Convert sample mean value to Z value
C. Find the corresponding area for the Z value.
Possible combinations (1,4), (1,5), (1,6), (2,4), (2,5), (2,6), (3,4), (3,5), and (3,6) for a total of 9 possible combinations.
At the a =.01 level of significance, do these data indicate that the mean weight of all newborn baby boys born at the local hospital is less than 110 ounces?
If the Prudential Insurance Company surveys its customers to determine the number of children under age 22 living in each household.
Using the quadratic equation x2 - 4x - 5 = 0, perform the following assignment Solve by factoring and solve by using the quadratic formula
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What is coefficient of dispersion? What purpose does it serve? Prove that the some of the squared deviations is least when taken from the mean.
If "Some obsessive-compulsive behaviors are not curable diseases" is false, what is the truth value of the following statements?- All obsessive-compulsive behaviors are curable diseases.
A student has failed to study for a true-false test and guesses at every one of the 10 questions. If the passing grade is 8 correct answers.
The ability to observe and recall details is important in science. Unfortunately, the power of suggestion can distort memory.
Customers arrive according to a Poisson process with rate A outside a bank where there are two automated teller machines (ATM). The two ATMs are not identical. We estimate that 30% of the customers use only ATM no.
Identify a business related management problem translate the management problem into a hypothesis assumption accurately state the null hypothesis and alternative hypothesis.
One of the questions in a study of marital satisfaction of dual-career couples was to rate the statement "I'm pleased with the way.
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