I can leave the testing area during my exam as long as I come back quickly.

During my exam, I can:

The last part of my room scan must show my work area and my allowed pages of handwritten notes if I choose to use them. 

The following set of data is randomly selected from a STA 2122 class of mine from spring 2010.The list includes clicker points earned in class (clickers allow students to answer questions in classand to have their answers scored) and their final averages.   Clicker points 32 11 34 41 16 Class Average 99 70 91 101 79  Find the correlation coefficient ( round to two decimal places)

  Below is some partial output for a simple linear regression model that relates sepal width (X) to sepal length (Y) for the iris setosa flower, based on data collected by the famous statistician Sir Ronald Fisher. Measurements are in centimeters:   Pearson correlation of X and Y = 0.701 P-Value = 0.000   Predictor     Coef  SE Coef     T      P Constant    2.7330   0.3429  7.97  0.000 X          0.66111  0.09903  6.68  0.000   Y= 2.7330 +0.66111 X S = 0.258174   R-Sq = 0.492   Sepal width and sepal length are: 

      The following table lists the price and number of pages for each of 15 books that were reviewed in the February 1982 issue of the journal Technometrics. Also summary statistics, sample correlation and a scatterplot of the data are shown: Pages Price (in dollars) 302 30 425 24 526 35 532 42 145 25 556 27 426 64 359 59 465 55 246 25 143 15 557 29 372 30 320 25 178 26           Pearson correlation of Pages and Price (in dollars) = 0.401       At a significance level of 5% our conclusion would be that there is : 

The contingency table below shows the results of a random sample of 400 state representatives that was conducted to see whether their opinions on a bill are related to their party affiliations. Assuming the row and column classifications are independent, find an estimate for the expected cell count of the cell  of Democrats who Disapprove ( second column , second row) Approve Disapprove No Opinion  Republican  84 40 28 Democrat 100 48 36 Independent 20 32 12  

 Find the rejection region for a test of independence of two classifications where the contingency table contains  5 rows and  columns and 4 columns. Use a 5 % level of significance 

A sports researcher is interested in determining if there is a relationship between the number of home team and visiting team wins and different sports. A random sample of 526 games is selected and the results are given below. Assuming the row and column classifications are independent, find an estimate for the expected cell count of cell 2,2 ( second row, second column) Football Basketball Soccer Baseball Home Team Wins 40 154 23 86 Visiting Team Wins 29 96 22 76

Below is some partial output for a simple linear regression model that relates sepal width (X) to sepal length (Y) for the iris setosa flower, based on data collected by the famous statistician Sir Ronald Fisher. Measurements are in centimeters:   Pearson correlation of X and Y = 0.701 P-Value = 0.000   Predictor     Coef  SE Coef     T      P Constant    2.7330   0.3429  7.97  0.000 X          0.66111  0.09903  6.68  0.000   Y= 2.7330 +0.66111 X S = 0.258174   R-Sq = 0.492     If the sepal width increases by one centimeter , the sepal length ,on average, increases by :