MATH 225N Week 1 to Week 7 Quiz, Assignment and Final Exam Package (Updated 2020)-Questions and Answers

MATH 225 Week 1 Assignment: Variables and Measures of Data: Statistical reasoning for health sciences 1. Which of the following best describes the term explanatory variable? ________________________________________ Select the correct answer below: ________________________________________ the depen...

MATH225N Week 1 Assignment: Evidence, Claims, and types: Statistical reasoning for health sciences 1. A study is planned to research the effects of drinking coffee on hours of sleep. Would an experimental or observational study design be more appropriate? ________________________________________ Se...

Math 225N Week 1 Assignment sampling Questions and Anwers Questions 1. Assume that 80 houses are present in the form of a grid consisting of 10 columns and 8 rows. If a loud speaker is placed just before the first row, which sampling method works the best to select a sample of houses if we want to ...

MATH 225 Week 2 Quiz: Statistical reasoning for health sciences: Question 1 A company has developed a wristband for monitoring blood sugar levels without requiring direct blood samples. It is interested in demonstrating the accuracy of the device for governmental approval and has decided to test th...

MATH 225N Week 3 Quiz (Central Tendency Q & A) : Statistical reasoning for health sciences: Given the following box-and-whisker plot, decide if the data is skewed or symmetrical. Select the correct answer below: ________________________________________ The data are skewed to the left. The data are s...

MATH 225N Week 4 Quiz: Statistical reasoning for health sciences Question 1 Alice sells boxes of candy at the baseball game and wants to know the mean number of boxes she sells. The numbers for the games so far are listed below. 16,14,14,21,15 Find the mean boxes sold. _____________________________...

MATH225N Week 5 Assignment: Central Limit Theorem for Means: Statistical reasoning for health sciences: Question A family of statisticians is trying to decide if they can afford for their child to play youth baseball. The cost of joining a team is normally distributed with a mean of $750and a stan...

MATH 225N Week 6 Quiz : Statistical reasoning for health sciences Question 1 A statistics professor recently graded final exams for students in her introductory statistics course. In a review of her grading, she found the mean score out of 100 points was a x¯=77, with a margin of error of 10. Con...

MATH225N Week 7 Assignment: Hypothesis Testing: Statistical reasoning for health sciences 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, h...

MATH225N Week 8 Final Exam;Performing Linear Regressions with Technology An amateur astronomer is researching statistical properties of known stars using a variety of databases. They collect the absolute magnitude or MV and stellar mass or M⊙ for 30 stars. The absolute magnitude of a star is the i...

MATH 225N Final Exam 2 with Answers A fitness center claims that the mean amount of time that a person spends at the gym per visit is 33 minutes. Identify the null hypothesis, H0, and the alternative hypothesis, Ha, in terms of the parameter ?. The answer choices below represent different hypothesis...