You want to help Dr. Burnsed get more exercise while she’s working, so you and your classmates suggest an under desk bike (Figure 1 A) so that she can exercise while Yellowdigging. In the model, point b is the pedal where the ball of the foot connects and point p is where the pedal connects to the crank. Between b & p is the distance between the ball of the foot and the pedal. Treat each segment as a rigid body with no mass. Your leg exerts 20C.D N (at point b) in the -x direction on the ball of the foot, calculate the y-direction force at (b) and the x- and y- direction forces at (p). Also determine the magnitude of force on the ball of the foot. The length bp is 9.A inches and is 50.B degrees from the horizontal. Where ABCD are the last 4 digits of your ASU ID.   

What do we mean by a normal distribution?  Give an example of two variables (not included in another question here in the test) that you would expect to be normally distributed.  Enter your answer in the box below.

What is the name of the compound below. Fe(OH)3

What is the chemical formula of chromium(IV) oxide? Make sure to type the proper formula (subscript, capital and lower case letters must be all correct to receive the full credit.)

A graduate student in clinical psychology is investigating self-reported state anxiety among first-year doctoral students during their initial qualifying exam. She randomly samples 28 students and administers the State-Trait Anxiety Inventory (STAI). The sample yields a mean score of 24.3 with a standard deviation of 5.7. Assume STAI scores are approximately normally distributed in the population. Construct a 95% confidence interval for the population mean STAI score during the qualifying exam. (1.5 pts) Interpret this confidence interval in the context of the problem. (1.5 pt) The student wants to design a follow-up study with a 95% confidence interval whose margin of error is no greater than 1.5 points. Using s = 5.7 as a planning value for

Explain the difference between a sample and a population.  Type your answer here in the test.

A health-psychology researcher hypothesizes that average nightly sleep duration (in hours) is positively associated with cognitive task performance the following morning. He records sleep duration the night before a working-memory task for a random sample of 10 undergraduates and records each student’s score (0 – 100) on the task.  Student Sleep (hr) Score 1 4 60 2 5 78 3 6 72 4 7 88 5 8 85 6 5 70 7 6 82 8 7 78 9 8 90 10 5 65 Test whether sleep duration and cognitive task are positively correlated. (5 pts) Compute and interpret the coefficient of determination R2. (2 pts)

Which of the following is an argument against the legalization of marijuana?

Paula has terrible credit and cannot get a loan. She uses her infant daughter’s information and applies for a credit card in her daughter’s name. What crime has Paula committed?

The National Drug Threat Assessment highlights that Mexican transnational criminal organizations, particularly the ______ and Jalisco cartels, play a central role in cocaine trafficking into the United States