Test whether the proportion of students with arachnophobia differs between A&M and Blinn (using the questions above).   Use Fisher’s Exact test to get the best estimate for the p-value. With a p-value of we would conclude that

A sample of 950 Blinn students found that 400 of them have a fear of spiders.   Compare this proportion against the A&M students from the previous question using confidence intervals based on the methods below   Lower Upper Asymptotic p1-p2 Wilson p1-p2

The data set http://people.tamu.edu/~scottcrawford/data/personalitytest.txt has results from 200 people that took a personality test that ranks (on a scale from 0 to 100) whether people are extrovert, confident, friendly, curious, and organized.  The goal is to do a cluster analysis to see if you can group people with similar personality characteristics.  Create an elbow plot of the number of clusters based on the Within Sum of Squares.

The following output came from a logistic regression model to predict peace (0 = none, 1 = peaceful)   Call: glm(formula = drunk ~ speed + braking + turn + accelerate + lights + time + blinker, family = binomial, data = data) Coefficients: Estimate Std. Error z value Pr(>|z|) (Intercept) 1.24 0.018 68.889

A physician orders amoxicillin 250 mg for a patient. The available suspension is labeled as 125mg/5mL. How many milliliters should the nurse administer per dose? (write number only)

A study looked at water lines that used either copper or PVC and whether those lines showed signs of wear.  It’s known that PVC pipes will show more wear, the goal is to test whether the difference in proportion is the same between College Station and Bryan.  Use the data below to answer the question.   College Station Copper PVC Wear 12 21 No Wear 18 25   Bryan Copper PVC Wear 38 102 No Wear 25 181   The test would have a value of and a p-value of which means we would conclude that

An ER doctor would like to know whether the proportion of car accidents is even across the days of the week.  She counts how many car accidents occur for a few weeks and what day of the week it was.  Based on the data below, what would be the p-value for the test? Sunday Monday Tuesday Wednesday Thursday Friday Saturday 76 58 54 39 50 61 75

Find all real and imaginary solutions.x4 – 16 = 0

Find the 95% Wald confidence intervals for the coefficients of the variables below:   Lower Upper speed accelerate

Identify the vertex of the parabola.f(x) = -5(x – 1)2 – 3