MATH 225N Week 3 Lab Assignment: Article on Concussions Concussion Attitudes and Beliefs, Knowledge, and Clinical Practice: Survey of Physical Therapists INITIAL SEARCH Broad Search with “Concussion” – 3,927 results What terms did you use? What other things did you mark on the search page before conducting your search? Why did you choose the article that you did? How many articles were … with these search terms? 3,927 Articles Give the full APA reference of the article you are using f...

MATH 225N Week 7 Hypothesis Testing Q & A Steve listens to his favorite streaming music service when he works out. He wonders whether the service algorithm does a good job of finding random songs that he will like more often than not. To test this, he listens to 50 songs chosen by the service at random and finds that he likes 32 of them. Use Excel to test whether Steve will like a randomly selected song more than not and then draw a conclusion in the context of a problem. Use α = 0.05. T...

MATH 225N Unit 7.1 Developing Hypothesis and understanding Possible Conclusions Question: Which type of test is used in the following scenario: The mean cutting rate of two competing table saws is to be compared. Fourteen cuts are randomly selected and measured for cutting speed to test if the speeds were different from each other. Both populations have normal distributions with known standard deviation. Question Determine the Type I error if the null hypothesis, H0, is: researchers claim that...

MATH 225N Week 8 Assignment: Correlation Questions-Answers 1. Question: A scientific study on gerbil population growth results in the data below…. The least squares regression line modeling this data is given by yˆ=13.3 5.567x. What is the slope of the regression line? Round your answer to three decimal places. 2. Question: The scatter plot below shows data for the average cost of a high-end computer (y, in dollars) in the year xyears since 2000. The least squares regression line is given by...

MATH 225N Statistics correlation and Y intercepts. Question A plot of time versus the price of a best-selling model of television has horizontal units of years since 2000 and vertical units of dollars. The best fit line of the data are defined by the equation y=−75x 550, where x=year and y=price. What are the units of the slope? year dollars dollars per year years per dollar television model Question Which of the following data sets or plots could have a regression line with a ne...

MATH 225N week 8 statistics questions module Correlation. Question Which of the following data sets or plots could have a regression line with a negative slope? Select all that apply. • the difference in the number of ships launched by competing ship builders as a function of the number of months since the start of last year • ________________________________________ • the number of hawks sighted per day as a function of the number of days since the two-week study started • ________...