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The undergraduate grade point average (GPA) for students admitted to the top graduate business schools was 3.37. Assume this estimate was based on a sample of 90 students admitted to the top schools. Using past years' data, the population standard deviation can be assumed known as 0.30. What is the 95% confidence interval estimate of the mean undergraduate GPA for students admitted to the top graduate business schools (to 2 decimals)?
Calculate the missing values in the following. The F ratio is = 5.00 between treatments SS DF Ms If withing treatments has a SS of 96, what is the degree of fredom and MS.
suppose were testing a new antibacterial cream formulation cs on a small cut made on the inner forearm. we know from
Use the Wilcoxin Rank Sum test for independent samples to determine if the median age of a car and a taxi are different.
Use the significance level of alpha = .05 to test claim that p > .5. Sample is simple random sample n = 50. Illustrate how to compute beta for test and suppose true population proportion is .6.
In a study, 65 % of the 100 Republicans surveyed, favored the bill for a salary increase and 60 %of the 200 Democrats surveyed, favored the same bill for a salary increase. Test whether the proportions of Republicans and Democrats favoring this bi..
a professor would like to utilize the normal distribution to assign grades such that 5 of students receive as. if the
The results, in tons of force required for breakage, are as follows: Determine the mean, median, range, and midrange. Calculate the mean absolute deviation (MAD).
Suppose a consumer group asked 18 consumers to keep a yearly log of their shopping practicesand that the following data represent the number of coupons used by each consumer over theyearly period.81, 68, 70, 100, 94, 47, 66, 70, 82, 110, 105, 60, 21,..
Identify the null hypothesis, alternative hypothesis, test statistic, P-value or critical value(s), conclusion about the null hypothesis, and final conclusion that addresses the original claim.
Management announce an incentive pay for the top 30% producers. what is the minimum number of units that a worker should produce in order to qualify for the incentive pay?
central day school a charter school dedicated to teaching first and second grade students collected data on their
What is the importance of pretesting questions and instruments? What are risks of not doing this? Provide an example.
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