Blog

Herbert Hoover’s economic policies leading up to and during the Great Depression left something to be desired according the many American citizens. What was the name of the legislation he passed which raised already high rates, and continued to choke the domestic economy?

Who helped established helped to operate the Food Administration during WWI, an organization which amassed efforts to feed those in active service?

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

Two statisticians have been arguing about the best way to use this data set.   Statistician A: Just use speed, lights, time, and blinker. Statistician B: Yes use all those, but include speed^2 and an interaction between lights and time.   Compare the two models (call it ModelA and ModelB) and perform a likelihood ratio test for H0: ModelA = ModelB The Chi-squared statistic would be The p-value would be Which means which leads us to conclude

Determine algebraically whether the graph is symmetric with respect to the x-axis, the y-axis, and the origin.y = |10x|

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 client wishes to do a sample size calculation for a logistic model that will predict getting a promotion based on four rankings X1, X2, X3, and X4 (all of which are measured from 0 to 100).     X1:             X2: X3:              X4: The client has drawn the four probability plots below to explain their opinion on the effect of getting a promotion based on each variable.   Match the plot to the appropriate equation.

Which of the following is NOT part of a genetic counselor’s job? 

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

Write the quadratic function in the form y = a(x – h)2 + k.y = x2 + 12x + 43