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A large investment firm claims that no discrepancy exists between the average incomes of its male and female investment counselors.
Random samples consisting of 15 male counselors and 17 female counselors have been selected, and the results examined through the use of ANOVA. In terms of this situation, interpret the components of the following Minitab output.
the following sample of heights was taken from 7 cans off the assembly line12.9 12.9 12.8 12.9 13.4 13.2 12.6build a 90
Create the 95% confidence interval for portion of respondents who feel president is doing a good job. Based on the intervalin part(a), It is sensible to conclude that majority.
A report of the National Center for Health Statistics says that the heights of 20-year-old men have mean 176.8 centimeters (cm) and standard deviation 7.2 cm. There are 2.54 centimeters in an inch. What are the mean and standard deviation in inch..
Suppose 3 high school students are randomly selected from different schools. What is the probability that all graduate?
An instructor claims the average time to take a statistics test is greater than 39 min. As, if a sample of 33 students took 43 min. is the instructor's claim true?
suppose that the service life in years of a hearing aid battery is a random variable having a weibull distribution with
From the fourth quarter of 1997 to the first quarter of 1998, revenues declined. What happened on a seasonally adjusted basis? d)Compute the forecast for the second quarter of 2002. e)Find the regression equation to predict the long term trend in th..
The chi-square test for independence is a nonparametric test used with two nominal variables and what are the hypotheses when conducting the chi-square test for goodness-of-fit?
Odometers measure automobile mileage. How close to the truth is the number that is registered?- State the null hypothesis, choose an alternative hypothesis, perform a t test, and write a conclusion.
consider the experiment of drawing two cards from a shuffled deck and then getting them back where success is now
What is the probability that a random sample of 36 students will have a mean verbal sat score that is great than 535?
The manufacturer wanted to determine if the tires were exceeding the guarantee. At the .05 significant level, it was concluded that the tires are exceeding the manufacturer's guarantee.
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