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Normal distribution that has a mean of 100, standard deviation 8, determine the z score and the area.
x=108 x=112 x=98 x=70 x=124 use the above information to determine the area: p(x>108) p(x<98) p(92< x >108) p(84< x >116) p(x<84)
What are some of the main uses of a regression analysis
Write down the regression equation and state the R-squared value and the standard error and explain what they mean with respect to the data.
1) A random sample of customer order totals with an average of $78.25 and a population standard deviation of $22.50. Calculate a 90% confidence interval fro the mean, given a sample size of 75 orders
How many cases of relays and capacitors should Harkin Electronics produce during that period? If your answer is in fractional units of cases that is acceptable - do not round to whole number of cases.
Is the random variable discrete or continuous?
Prepare a single summary table that shows average and standard deviation of current salary for males and females according to their Position within the company.
Westhouser believes that it on make $650.000 from alternative Investments. What should the company do - houscr does not take advantage of Its current op-don, it can attempt to buy the land at the beginning of June or the beginning of July. provided ..
What are the mean earnings of males and females in this sample? Does the regression result support the claim in the news and You decide to control for age (in years) in your regression results because older people, up to a point
Describe a circumstance when the mean is a very useful measure and a circumstance when it is misleading
To test the hypothesis that there is no association between use of postmenopausal hormones and risk of MI, chi-square statistics need to be calculated.
State the five types of central tendency in general use. Which of these are most frequently used in SPC work and calculate the median for the group of results tabulated below: 1,3,4,6,7,9,11,14,16,17,18.
Compute expected frequencies for each of the cells in the table in part c). Do you feel that the exponential distribution provides an adequate description of these data?
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