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State the hypotheses, show how the degrees of freedom are calculated, find the critical value of chisquare from Excel's function =CHIINV(alpha, deg_freedom)
Is there a relationship between whether or not someone completed and returned their 2011 census report and their opinion of gun control?
Goody Mattress and Furniture Company wishes to study the number of credit applications received per day for the last 300 days. The info is reported as follows:
One-year sales volume of four similar 20-oz. beverages on a college campus is shown. (a) make a bar chart and describe it. (b) Calculate expected frequencies
What is the calculation of 450 participants included in a study? 150 cases who had been in an accident and 300 controls who had not.
The newspaper has charged that your police department responds more slowly to 911 calls in poor neighborhoods than in more wealthy ones.
Determine if Gender and Training Program are independent. This will require you to produce a "contingency table" where the table entries are counts
John Isaac, Inc., a designer and installer of industrial signs, employs 60 people. The company recorded the type of the most recent visit to a doctor
There are four entrances to the Government Center Building in downtown Philadelphia. The building maintenance supervisor would like to know
The car dealership did a study on 6 different uniform variations. In this study, they had personnel from all companies across the world
The Ohio Department of Highways is in the process of selecting a new paint for highway use.
A recent research report shows that the percentage of college students who have been reported for plagiarizing has reached 30% each in the colleges of Education
The employee benefits manager of a small private university would like to estimate the proportion of full time employees who like to adopt the first
Construct a 2x2 table for these data using "female" and "male' as the categories on GNDR, and "dislike" and "like" as the categories on LIKE
You are a general manager at a resort in Hilton Head, South Carolina. To analyze activity and sales, you are interested in studying the number of rounds
A worker in an insurance company processes claims. The distribution of the number of claims processed each day in a week of this worker's life is as follows.
Using the data set you have selected, choose independent and dependent variables.
Plot x = years after 1974 against GNP, and use the plot to describe how to fit a curve that could be used to predict GNP during future years.
Assigment was to Regress Onlinepop against PC's, Phones, and Educ and then to regress the predicted values of the dependent variable.
The slop of the regression line indicates that for every penny increase in price, she reduces her sales by about 0.26kg a day.
Perform power regression on these data, and then choose the one option describing a situation which these data could represent.
Demonstrate using regression functions by explaining what a regression function is and the factors which should be considered when interpreting results.
In California in 1990 the population was 29, 839, 250. what is the prediction of california's population in the long-run?
During 2002 the number of beds required per day at St Hallam's hospital was normally distributed with a mean of 1800 and a standard deviation of 190.
The data below present the results of a hydrological investiagtion of the snake river watershed.