STA 205 Lab 2: Sampling Distribution of the Sample Proportion 1. In the 2014 NFL
ID: 3299215 • Letter: S
Question
STA 205 Lab 2: Sampling Distribution of the Sample Proportion 1. In the 2014 NFL draft, 172 drafted players came from one ofPrea013s Crorer S Conference) the "Power 5" conferences (ACC, Big 12, Big Ten, Pac-12, SEC), while 166 drafted players came from one of these conferences in the 2013 draft. A frequency bar graph comparing the two years is at the right. Use this information0 to answer the following 2014 a Identify the two variables recorded for each of the 338 players drafted Classify the variables as categorical or quantitative. ACC Big 12 Use the information presented in the bar graph to fill in the description below: b. of the players drafted came from the Southeastern Conference (SEC). The conference had the fewest number of players drafted in total for the two years. The In 2014, 2015 National Championship game featured Ohio State (from the Big 10) and Oregon (from the Pac- 12). In the past two years, a total of players have been drafted from these two conferences, representing a percentage of , 57.5% of the ACC players who were drafted were taken in the 2014 draft; the corresponding percentage for Pac-12 players was 2. For the 2016-17 school year the graduation rate (the percentage of the ninth-grade cohort in public schools that graduates from high school in four years) in Kentucky was 89.2%. An educator in Northern Kentucky would like to determine if the graduation rate in Northern Kentucky (public schools in Boone, Kenton, and Campbell counties) is higher than the state value. A simple random sample of students from these schools in the 2016-17 cohort were selected from school records Assuming the Northern Kentucky percentage is the same as the state percentage, completely describe the sampling distribution of the sample proportion of the graduation rate of Northern Kentucky students during the 2016-17 school year when samples of size 125 are selected. a.Explanation / Answer
Q1.
a) 2 variables are 2014 NFL draft and 2013 NFL Draft.
The variables are quantitative
b) In 2014, 50.89%..........The 2013 conference had ........In the past 2 years, a total of 114(=22+30+28+34) players
percentage of 33.73%......PAC -12 ...(54.8%)
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