USE R STUDIO SOFTWARE ONLY TO ANSWER THE QUESTION.

IF YOU COPY PASTE STUFF FROM CHEGGG I WILL MARK IT AS INCORRECT ANSWER

Part II Research (20 points each question it 3 = 60 points) Assume that the data set we are using represents a random sample of all STA332 students. Further assume that the populations are normally distributed (they are). That way we don't have to worry about normal probability plots if any of our samples are below.r 2'3. Thus= we will be basing our inference and conclusions on the population of STA-382 students. Below you will nd three research questions. You can use any statistical method you want (some are much better than others) to answer these questions, but you must outline your methodology (hy othesis testing, some type of graph, condence interval, regression analysis, e c.). Aer the \"Data Cleaning\" section, have a separate section for each research question. State your research question fll'SL followed by your answer to the question. You can then quickly discuss your methodology and provide the R output as backup for your analysis and conclusions. Spelling and Grammar (15 points) Spell Checker is a good tool, but you need to look through your paper for spelling, typos, grammar errors etc. Research Questions (Any testing or inference should be clone at 95% Condence). Also, make certain that you Q do any required testing (normality issues, sample size, normal prob plots etc; If you are not able to answer the question for these reasons, just say so and more on to the next question. 1. It is claimed that due to smaller lung capacity, a female's heart must beat faster during exercise. Given this information, do females have a higher mean after exercise pulse rate (m men? Perform this test at a 95% level of condence. 5" It is believed that overweight people (high BREE) will have a higher pulse difference because their heart must work comparatively harder when exercising. Given this information, can we predict a person's pulse difference (Y) using 1311100? In other words, is BMI a signicant predictor of a person's Pulse Difference? 3. It is claimed that one minute of exercise will increase a typical STA-382 student's pulse (mean pnlse difference) by more than 25 beats per minute. At a 95% level of condence, evaluate this research objective (mean pulse difference is greater than 25 beats per minute]