![kiekie1986](/avatars/2388.jpg)
kiekie1986
22.04.2020 •
Mathematics
The National Football League (NFL) polls fans to develop a rating for each football game (NFL website, October 24, 2012). Each game is rated on a scale from (forgettable) to (memorable). The fan ratings for a random sample of games follow. Excel File: data07-11.xlsx a. Develop a point estimate of mean fan rating for the population of NFL games. b. Develop a point estimate of the standard deviation for the population of NFL games (to 4 decimals).
Solved
Show answers
More tips
- O Other What is a Disk Emulsifier and How Does it Work?...
- F Family and Home What does a newborn need?...
- F Family and Home Choosing the Right Car Seat for Your Child: Tips and Recommendations...
- F Food and Cooking How to Get Reconfirmation of Registration?...
- C Computers and Internet How to Get Rid of Spam in ICQ?...
- A Art and Culture Who Said The Less We Love a Woman, the More She Likes Us ?...
- F Family and Home How to Get Rid of Your Neighbors?...
- S Society and Politics How Could Nobody Know About the Dead Mountaineers?...
- H Health and Medicine How to Cure Adenoids?...
- H Health and Medicine Why Wearing a Back Brace Can Be Beneficial During Back Strain?...
Answers on questions: Mathematics
- M Mathematics Click an item in the list or group of pictures at the bottom of the problem and, holding the button down, drag it into the correct position in the answer box. Release your mouse button...
- M Mathematics John s parents put $75 into his school lunch money account. Each meal he gets from school costs him $3.75. The school sends John s parent s an email when the balance reaches $116.25....
- C Chemistry Silver bromide (AgBr) has a solubility of 7.07 × 10^-7 mol/L a. write the dissolution reaction of Abraham, including all states.b. write the expression for ksp for AgBrc. calculate...
- B Biology Determination of the incubation period for a disease outbreak to: demonstrate the location of the outbreak show the distribution of cases by time of onset verify that an epidemic has...
- S Social Studies HELP PLEASE VIDEO - https: //youtu.be/XZMlteB4Zbc...
Ответ:
This question is incomplete, in that the Excel File: data07-11.xlsx a. was not provided, but I was able to get the information on the Excel File: data07-11.xlsx a. from google as below:
57 61 86 74 72 73
20 57 80 79 83 74
The image of the Excel File: data07-11.xlsx a. is also attached below.
a) Point estimate of sample mean = 68
b) Point estimate of standard deviation (4 decimals) = 17.8122
Step-by-step explanation:
a) Point estimate of sample mean, \bar{x} = ∑Xi / n = (57 + 61 + 85 + 74 + 73 + 72 + 20 + 58 + 81 + 78 + 84 + 73)/12 = 68
b) Point estimate of standard deviation = sqrt ∑ Xi² - n\bar{x}² / n-1)
= sqrt(((57 - 68)^2 + (61 - 68)^2 + (85 - 68)^2 + (74 - 68)^2 + (73 - 68)^2 + (72 - 68)^2 + (20 - 68)^2 + (58 - 68)^2 + (81 - 68)^2 + (78 - 68)^2 + (84 - 68)^2 + (73 - 68)^2)/11) = 17.8122
Ответ:
1) 38
2) 19
3) 1134
Step-by-step explanation: