The National Football League (NFL) polls fans to develop a rating for each football game. Each game is rated on a scale from 0 (forgettable) to 100 (memorable). The fan ratings for a random sample of 12 games follow. 58 61 87 75 71 73 21 56 79 80 84 73 a.  Develop a point estimate of mean fan rating for the population of NFL games (to 2 decimals). b.  Develop a point estimate of the standard deviation for the population of NFL games (to 4 decimals)

Q: The National Football League (NFL) polls fans to develop a rating for each football game. Each game…

A: Point estimate: The integer value obtained for, x-bar, s, or p-hat is termed as the point estimate.…

Q: The financial aid office at a state university conducts a study to determine the total student costs…

A: Given that, The financial aid office at a state university conducts a study to determine the total…

Q: The weekly salaries (in dollars) for some registered nurses are listed below: 774   446  1019  795…

A: Given data,   774   446  1019  795  908  667  446  960     The objective is to find the mean,…

Q: A publisher receives a copy of a 500-page textbook from a printer. The page proofs are carefully…

A: Number of errors(x) Number of pages(f) fx x-x¯ x-x¯2 fx-x¯2 0 102 0 -1.654 2.7357 279.0414 1 138…

Q: Calculate the mean and standard deviation from the sample data below. 23-41 1 42-60 5. 61 79 80-98…

A: Given data is: class frequency(f) midpoint(x) 23-41 1 32 42-60 5 51 61-79 7 70 80-98 10…

Q: Private colleges and universities rely on money contributed by individual and corporations for their…

A: The given data is, 60.2 51.2 235.1 343 122.6 177.5 95.4

Q: Scores turned in by an amateur golfer at the Bonita Fairways Golf Course in Bonita Springs, Florida,…

A: a) Mean of the 2005 and 2006 season: x¯2005=74+78+...+75+778=76x¯2006=74+70+...+71+798=76 Variance…

Q: The National Football League (NFL) polls fans to develop a rating for each football game. Each game…

A:

Q: The Wind Mountain archaeological site is located in southwestern New Mexico. Wind Mountain was home…

A: Given data set, 85,45,120,80,75,55,65,60,65,95,90,70,75,65,68

Q: Given the following frequency distribution, determine the standard deviation. Scores Frequency 51-60…

A:

Q: The highway mileage (mpg) for a sample of 9 different models of a car company can be found below.…

A: The mid-range is obtained below: The given data set is 36, 26, 20, 24, 49, 23, 29, 47 and 49. From…

Q: The following data are the distances between a sample of 20 retail stores and a large distribution…

A:

Q: Students in a large accounting class were asked to rate the course by assigning a score of 1, 2, 3,…

A: The objective is to find the mean and standard deviation of the ratings. It is known that the…

Q: The National Football League (NFL) polls fans to develop a rating for each football game. Each game…

A:

Q: in hours) that teenagers spend playing video games per week. The distribution is approximately…

A: Let X be the  teenagers spend playing video games per week  X~N(mean=14, standard deviation=4)

Q: Hour Frequencies 10-14 8 15-19 28 20-24 27 25-29 12 30-34 4 35-39 1

A:

Q: A survey of 10 fast-food restaurants noted the number of calories in a mid-sized hamburger. The…

A: The mean of the data is calculated as follows: Mean=515+507+...+51310         =493310…

Q: Using your calculator, find the range and standard deviation, round to two decimals places: The…

A: From the provided information, Maximum value of data set = 94 Minimum value of data set = 19 The…

Q: A sample of weights (in pounds) for six 12-year-olds is given below:   100 76 92 79 84 90    Find…

A:

Q: A sample was done, collecting the data below. Calculate the standard deviation, to one decimal…

A: Measure of central tendency measures the central or average value of a dataset. Measured of…

Q: An IQ test is an assessment that measures a range of cognitive abilities and provides a score that…

A:

Q: The following data represent the annual salaries (in thousands ofdollars) of twelve employees at a…

A: The provided data which represents the annual salaries of twelve, n employees is,

Q: Amount of deposit, $ (x,) 1000 3000 3500 7000 15000 Number of depositors (n,) 96 107 130 89 78

A: xi 1000 3000 3500 7000 15000 ni 96 107 130 89 78

Q: The commute time for Cypress College students who drive from their home to the college follows a…

A:

Q: For a sample of employees at a manufacturing company, their age of retirement was recorded and is…

A:

Q: The average American male has a BMI of 28.6 and having a BMI over 25 is considered obese. In a…

A: The standard deviation of the sampling distribution of the sample mean is given by

Q: find the range and standard deviation, round to two decimals places: The table below gives the…

A:

Q: Sweet Rush is an ice cream shop chain that has locations all across the nation, Customers at Sweet…

A: Solution-: Given: μ=1.40,σ=0.85,n=10 We find, (a) μX¯=? (b) σX¯=?

Q: The distribution of a sample of 100 women of reproductive age group in a given community is given…

A:

Q: Private colleges and universities rely on money contributed by individual and corporations for their…

A: The point estimate for the standard deviation of endowments of all private colleges in the US is…

Q: The Wind Mountain archaeological site is located in southwestern New Mexico. Wind Mountain was home…

A:

Q: The National Football League (NFL) polls fans to develop a rating for each football game. Each game…

A: Given 58,61,87,74,72,74,19,57,79,79,82,75 n=12

Q: The National Football League {NFL) polls fans to develop a rating for each football game {NFL…

A: Given, The fan ratings for a random sample of 12 games is, 57 61 86 74 72 73 20 57 80 79 83 74

Q: Total enrollment in the Kalamazoo Public Schools have a mean and standard deviation of 11,957 and…

A: We have given that  Mean = 11957  and standard deviation = 13 In next five years so, every…

Q: A sample of weights (in pounds) for six 12-year- olds is given below: 90 75 85 85 97 91 Find the…

A:

Q: The highway mileage (mpg) for a sample of 10 different models of a car company can be found below.…

A: Data in order  22, 24, 26, 27, 39, 43, 43, 46, 48, 49 Mode may be defined as the maximum number of…

Q: Recently, a random sample of 25–34 year olds was asked, "How much do you currently have in savings,…

A:

Q: According to the 1-2-3 rule, what percentage of area in a normal distribution is within one standard…

A: Normal distribution is symmetric distribution about mean and bell shaped. Spread of the distribution…

Q: A survey of 25 randomly selected customers found the ages shown (in years). The mean is 32.92 years…

A: .

Q: Melvin surveyed the price of unleaded gasoline at gas stations in Davao city and Tagum City. The raw…

A: Given that, Melvin surveyed the price of unleaded gasoline at gas stations in Davao city and Tagum…

Q: An IQ test is an assessment that measures a range of cognitive abilities and provides a score that…

A: Given Information: Sample mean x¯=63.5 Sample standard deviation s=12.33

Q: As the new manager of a small convenience store, you want to understand the shopping patterns of…

A: Let X represents the purchase amount. x 39.05 2.73 32.92 47.51 37.91 34.35 64.48…

Q: A sample of 10 members of a video club provides the following data on number of videos they own. Use…

A: (a)   Obtain the point estimate for the mean number of videos owned by all video club members.   The…

Q: Calculate the sample standard deviation of the data shown. Round to two decimal places. 17 22 25 15…

A:

Q: The table below summarizes the number of hours a sample of college students spent watching…

A:

Q: On average, accountants earn approximately an average of $6500 per year in the United States. Assume…

A:

Q: Calculate the mean deviation from the mean for the following distribution : Marks No. of students :…

A:

Q: In 2017, Americans spent a record-high $9.1 billion on Halloween-related purchases (the balance…

A: Number of students sampled = 16 therefore, Sample size = n = 16 The amount in dollars spent on…

Q: The proportion of Americans who are satisfied with the way things are going in their lives is 82%.…

A: From the given information the sample size is (n) = 100 and the proportion of Americans who re…

Q: SE Mean

A: Country- CHINA Sample size (n) =50 Sample mean (x¯) = 22.5  Standard deviation (σ)=9.75

Estimation

A new framework of data analysis where the new statistical methods are used for interpreting the results and analyzing the data is known as estimation in statistics.