Null Hypothesis (H0) Answer: The claim that we weigh evidence against in a statistical test; usually a statement of "no difference" Alternative Hypothesis (Ha) Answer: The claim about the population that we try to weigh evidence for. One-sided alternative hypothesis Answer: If it states that a parameter is larger than the null hypothesis value or if it states that the parameter is smaller than the null value. Two-sided alternative hypothesis Answer: If ...

Interpret the correlation "r" Answer: There is a ___________ __________ linear relationship between ___________ (x) and ____________(y). Interpret the coefficient of determination "r^2" Answer: ___% of the variation in _________ (y) can be explained by the linear relationship with _________ (x). Interpret the slope "b" Answer: For every 1 unit increase in ___________ (x), our model predicts an average _________ of __(b) in _________ (y). Interpret the y int...

Statistics (As a Whole) Answer: We begin with a population and something we want to know about that population. If the population is small, we can perform a census (gather data from every individual) and calculate a parameter (a summary of our whole population). If a population is too big to perform a census, we can perform a sample (gather data from a small group of individuals in our population) and calculate a statistic Variability Answer: Differences... how things di...

What are categorical variables? Answer: No meaningful order; averages cannot be taken and have meaning; numbers are not important except for the frequency. What are examples of categorical variables? Answer: Gender, political affiliation, and eye color. What are quantitative variables? Answer: Order is meaningful; averages should have meaning; numbers are very important. What are examples of quantitative variables? Answer: GPA, number of pets, and salary....

Stats 250 all study guide notes With emphasis on; 1. Exploring data 2. Modelling distribution of data 3. Describing relationship and more ........... * Detailed and comprehensive * For students

STATS 250 Week 12 Final Exam 2023 – Questions and Answers Rated A+.

STATS 250 Final Exam Solutions | Complete Rated A+.

STATS 250 Final Exam Solutions | Complete Rated A+ 2023. When evaluating loan applicants for approval of a loan, banks examine several aspects of an applicant’s financial history. One aspect that is considered during the loan application process is the applicant’s credit score. We would like to assess if the population mean credit score for successful loan applicants is greater than the population mean credit score for applicants who were denied the loan, H0: µ1 = µ2 versus Ha: µ1 &g...