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Instructions

Instructions: This assignment is related to your Chapter 3 (Salkind) material. It is not timed but the assignment must be submitted by the specified due date. Individual Assignments that are not submitted will receive a grade of “0”. This assignment is worth 10 points.

Always save a copy of your responses to the individual assignments before you submit them (either by taking a picture of your answers or by copying and pasting your answers into a word document). You will need them for you discussion assignment and you will not always have access to your responses after you submit them. 

In Football, when the quarterback is tackled before they can throw the ball, it’s called getting “sacked.” Getting sacked is a bad thing because it means that they lose yards (they are farther away from the goal) and they lose a chance to advance the ball.

The National Football League (NFL) is divided into two different conferences (groups of teams), the NFC and the AFC. Below are the number of times the quarterbacks were sacked during the regular 2021 season for every football team in the AFC and NFC.  

AFC
AFC Team Name	Number of times sacked
Ravens	57
Bangles	55
Steelers	38
Browns	49
Bills	27
Dolphins	40
Patriots	28
Jets	53
Texans	44
Colts	32
Jaguars	32
Titans	47
Broncos	40
Kansas City	28
Raiders	40
Chargers	31

 

NFC
NFC Team Name	Number of times sacked
Bears	58
Lions	36
Packers	33
Vikings	30
Cowboys	33
Giants	38
Eagles	31
Washington	43
Falcons	40
Panthers	52
Saints	37
Buccaneers	23
Cardinals	39
Rams	31
49ers	33
Seahawks	46

Question 1

Using the data provided, what is the average number of sacks for the AFC? Round your answer to three decimal places. 

 

Flag question: Question 2

Question 2

Using the data provided, what is the variance for sacks in the AFC?  Round your answer to three decimal places.

 

 

Flag question: Question 3

Question 3

Using the data provided, what is the standard deviation for the number of sacks in the AFC  Round your answer to three decimal places.

 

Flag question: Question 4

Question 4

Using the data provided, what is the mean number of sacks for the NFC?  Round your answer to three decimal places. 

 

Flag question: Question 5

Question 5

Using the data provided, what is the variance for the number of sacks for the NFC?  Round your answer to three decimal places.

 

Flag question: Question 6

Question 6

Using the data provided, what is the standard deviation for the number of sacks for NFC?   Round your answer to three decimal places.

 

Flag question: Question 7

Question 7

Show your work here! Upload a picture or file of your work for the calculation of the variance and SD for both groups. You can upload one (or multiple) pictures. To upload a file click on the three dots on the menu below, then click on the "picture icon" and then click "upload image".  A photo of your hand calculations and "the table" you used to calculate them would be sufficient! If you are using an iphone, please convert your image to a .jpeg or .docx format (you can paste the image into a word document and submit that). If you submit using the .HEIC format, we will be unable to read your answer.

 

Remember, your table for calculations should look something like this: 

	X	X-M	(X-M)2
∑

p

0 words

 

Flag question: Question 8

Question 8

Which seems to have more variability, the AFC or the NFC?

Group of answer choices

AFC

Neither group of teams has any variability

NFC

 

Flag question: Question 9

Question 9

Which group of teams had more sacks, on average? 

Group of answer choices

neither team has a higher mean

AFC

NFC