DEPENDENT samples t-test and INDEPENDENT samples t-test

Part 1: Describe three research questions that could be addressed using a DEPENDENT samples t-test. Pick one research question to test, and describe a study that could be used to investigate that research question. Describe what the null hypothesis and alternative...

Analysis of Defective Components in Batches

  QUESTION 1: (15 MARKS) Electric Co. Ltd buys electrical components in batches of 2000. From time to time a batch is randomly selected and, for quality control purposes, all the components are inspected. The data gives the number of defective components found in...

Correlation Coefficient

    The following data represent the speed at which a ball was hit​ (in miles per​ hour) and the distance it traveled​ (in feet) for a random sample of home runs in a Major League baseball game in 2018. Complete parts​ (a) through​ (f). ​(a) Find the​...

Long-term morbidity and mortality of overweight adolescents

  1. Read the paper by Must, et al (1992): Long-term morbidity and mortality of overweight adolescents. NEJM, 327:1350-55. Questions Based on the table and formulas below, calculate, label AND state the meaning of your answer (interpret) in a sentence: Status as...