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The University is attempting to set its staffing plan for the next several year, and it wants to determine if the distribution of students among various graduate majors has changed from the historical averages which were: 24% were engineering graduate students, 35% were business majors, 15% were Counseling, 18% were health care and 8% were theology. This year's incoming class had 56 engineering graduate students, 66 business students, 20 counseling, 32 in health care and 26 theology students. Test to see if the distribution of graduate majors has changed (use α = 0.01). Show all information including test statistic, critical value and interpret the results.
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A 2005 AP-IPSOS poll found that 21% of American adults surveyed said their child was heavier than doctors recommend. The reasons given as the most important contributing factor to the child's weight problem is summarized in the accompanying table...
What is the domain of a quadratic function? Can you give an example please.
physicians at a clinic gave what they thought were drugs to 920 asthma ulcer and herpes patients. although the doctors
Assume that the two samples are independent simple random samples selected from normally distributed populations. Do not assume that the population standard deviation are equal.
For a given level of significance, if the sample size is increased: the power of the test will increase we will have more responses to log and calculate it will skew the mean to the right it has no effect on the direct results.
historically eastern has never sold fewer than 2300 programs or more than 2700 programs at one game. each program costs
Airlines monitor the causes of flights arriving late. 75% of flights are late because of weather, 35% of flights are late because of ground operations. 10% of flights are late because of weather and ground operations.
select the variable for the number of miles traveled last month. conduct a test of hypothesis to determine whether the
a grocery store is sponsoring a sales promotion where the cashiers give away one of the letters a e l s u v for each
Recommend a course of action to the management of the company, based on the results of a hypothesis test for a single proportion conducted at the 5% level of significance.
If a total of 5,450 packages are shipped for .$1,926, determine how many individual packages were shipped and how many groups of 15 were shipped.
a sociologist studying the justice system has just written a paper detailing her findings after she examined the
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