Many universities use a student's ACT score to help with admission decisions as well as placement decisions. ACT Score Answer How to enter your answer (opens in new window) GPA 32 20 22 24 26 28 30 1 1.5 2 2.5 3 3.5 5.5 Step 3 of 3: Calculate the coefficient of determination, r². Round your answer to three decimal places.

please answer in text form and in proper format answer with must explanation , calculation for each part and steps clearly

HOW Do I solve this in EXCEL  In 2016, the Better Business Bureau (BBB) settled 80% of complaints they received in the US. Suppose you have been hired by the BBB to investigate the complains they received this year involving new car dealers. You plan to select a sample of new car dealer complaints to estimate the proportion of complaints the BBB is able to settle. Assume the population proportion of complaints settled for new car dealers is 0.8, the same as the overall proportion of complaints settled in 2016.   Suppose you select a sample of 200 complaints involving new car dealers. Show the sampling distribution of pbar. Based on a sample of 200 complaints, what is the probability that the sample proportion will be within 0.04 of the population proportion? Suppose you select a sample of 450 complaints involving new car dealers. Show the sampling distribution of pbar. Based on the smaller sample of only 450 complaints, what is the probability that the sample proportion will be within…

help please answer in text form with proper workings and explanation for each and every part and steps with concept and introduction no AI no copy paste remember answer must be in proper format with all working