Find the Mean and Standard Deviation for the prompts below: A survey found that 21% of Americans watch the fireworks on the 4th of July from their TV.  If 80 Americans are surveyed, would it be unusual to have less than 10 watch the fireworks from their TV?  Explain.

Q: The ages (in years) of a random sample of shoppers at a gaming store are given below: 12 2 23 15 20…

A: Let us define X as the given observations. X: 12, 21, 23, 15, 20, 16, 19, 17, 14, 16. Consider,…

Q: The Pizza Place recorded the number of extra toppings added to each pizza. Compute the mean and…

A:

Q: Find the Absolute Quartile Deviation for the following data, In the dashed line put your…

A: Dispersion is a statistical term that describes the size of the distribution of values expected for…

Q: . The following readings were taken with a meter stick for the length of a cylinder: 5.5 cm, 5.3 cm,…

A: Given, the readings of the length of a cylinder, taken with the help of a meter stick as follows:…

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

A: The value of sample mean is,

Q: The bank of America's VP feels that each saving account customer has, on average, 3 credit cards.…

A: The bank of America's VP feels that each saving account customer has, on average, 3 credit cards.…

Q: Below is a list of number of dogs owned by families, in a particular neighborhood, find the mean and…

A: According to the given information, it is required to determine the mean and standard deviation.

Q: Find the sample standard deviation to the nearest hundredth for the following dat 102, 115, 120,…

A: Given data set, 102,115,120,122,135,136,142,144,144 Sample standard deviation=?

Q: After examining a child at his​ 2-year checkup, the​ boy's pediatrician said that the​ z-score for…

A: The z score is given by Z = 1.31

Q: (a) How many reams should the manager expect to use each day? (b) What is the standard deviation of…

A: here given Discrete probability Distribution of X  X=  no of reams of paper Used

Q: In the Philippines, most of the registered nurses goes abroad for work after years of working…

A: Since you have posted a question with multiple sub-parts, we will solve first 3 sub-parts for you.…

Q: The tourist bureau of the Caribbean Island surveyed a sample of 6 United states tourists as they…

A:

Q: In designing a work desk, it is found that males have sitting knee heights with a mean of 21.2 in,…

A: From the provided information, Mean (µ) = 21.1 Standard deviation (σ) = 2.2

Q: A sample of weights (in pounds) for six 12-year-olds is given below:   97 75 91 83 80 96   Find…

A:

Q: In Pittsburgh, Pennsylvania, about 56% of the days in a year are cloudy. Find the mean, variance,…

A: Given, In a year 56% of days are cloudy. Now during June month 30 days. Each day is independent of…

Q: Compute the mean and standard deviation for the sample below, rounding each to the nearest…

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

Q: Given the data: 47, 55, 57, 63, 73. Find the standard deviation. Round the final answer to the…

A:

Q: Find the Absolute Quartile Deviation for the following data. 042, 384, 591, 407, 672, 522, 777, 733,…

A: The first and the third quartile, obtained in excel using "QUANTILE.EXC()", is  Q1 = 401.25 Q3 =…

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

A:

Q: What is the average score for those who are willing to rise to the challenege with the standard…

A: Here X takes values 1, 2, 3, 4, 5 with following frequencies The average score is calculated using…

Q: Find the standard deviation (s) for the following: 8, 9, 8, 5, 6

A: The mean of the given numbers is obtained as follows:

Q: The ages of employees in a certain company were bell-shaped with mean 28 and standard deviation 5.…

A:

Q: The following data values represent the daily amount spent by your family during a seven day summer…

A: Standard deviation= √E(X2)-((E(X))2 E(X)= (summation Xi)/n E(X2)= (summation Xi2)/n Sample size is…

Q: An accountant is studying the attendance levels at the concerts of a touring rock band. She finds…

A: Let x¯ be the mean number of attendees at a performance in her study for 62 performances which…

Q: In a job fair, 3000 applicants applied for a job. Their mean age was found to be 28 with a standard…

A: The mean is 28 and the standard deviation is 4.

Q: You are an educational researcher at McMaster University. Suppose you know that 22.7% of the entire…

A:

Q: 6.)  A survey found that 21% of Americans watch the fireworks on the 4th of July from their TV.  If…

A: n = 80 p = 0.21   Mean = np = 0.21 x 80 = 16.8   The standard deviation is given by σ = npq σ = 80 x…

Q: The Population of the New England states are given below¹. What are the mean and standard deviation…

A:

Q: An upscale women's clothing boutique in Laguna Beach, on average, has daily sales of $28,176.44. The…

A:

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

A:

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

A: Solution: The given data is

Q: A manager is interested in finding the average number of sales per day at a sporting goods store. If…

A: Obtain the sample size. The sample size is obtained below as follows: The formula of sample size is,…

Q: In a statistics class, 10 scores were randomly selected, and the following results were obtained:…

A: Mean: It is the sum of the total observations divided by the total number of observations. Range: It…

Q: The following data set represents performance scores from a sample of participants in a psychology…

A: The formula to find sample standard deviation is as follows,  s = ∑ x2-∑x2nn-1

Q: The following grades, Table 1(g), were given for a student assignment, compute the mean, x, the mode…

A: Introduction: When observed data are not in grouped format, they are referred to as ungrouped data.…

Q: Find the standard deviation for the following data set. ​2, 2,​ 2, 5,​ 5, 6,​ 6, 8,​ 8, 9   A. 2.49…

A:

Q: See picture for questions.   Explanation On their website, a property management company states…

A: Givensample size(n)=10Mean(x)=660standard deviation(s)=25α=0.10

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

A: Explanation and solutions is given below....

Q: The following data gives the number of books taken in a school library in 7 days find the standard…

A:

Q: d) What is the standard deviation for the number of adult Americans out of the 20 we would expect to…

A: We have given that,  X be the random variable from Binomial distribution with probability of success…

Q: Use the range rule of thumb to approximate the standard deviation. 22, 29, 21, 24, 27, 28, 25, 36 O…

A: The given data is listed below. 22, 29, 21, 24, 27, 28, 25, 36. The objective is to find the…

Q: Find the mean and standard deviation of the following numbers:  35,18,12,32,35,75,32,26,18

A: Obtain the value of the mean. The value of the mean is obtained below: Mean: From the information,…

Q: The weekly mean sale of a certain store is 3,884 pesos. When the measurements are reviewed it was…

A: Given : x¯ = 3884 ∑x = 3884×7 ∑x = 27188 Now after correction, ∑x = 27188 - 2321 + 3221 ∑x = 28088

Q: The tourist bureau of the Caribbean Island survey a sample of 6 United States tourists as they left…

A: The mean number of days spent on the visit can be calculated as:

Q: A financial researcher in Malaysia found that the monthly expenditure for a household staying in…

A: Since you have posted a question with multiple sub-parts, we will solve first three sub-parts for…

Q: For the following situation, find the mean and standard deviation Find the mean and standard…

A:

Q: For the following data in the sample:     0,    6,    8,    6,    5 Find the mean and the standard…

A: The data is given as 0, 6, 8, 6, 5.

Q: A greenhouse full of tomato plants is being looked after by a farmer. He measures each of the plants…

A: The frequency distribution for heights of tomato plants is given below : For computing the…

Q: The mean, µ, is (Round to the nearest tenth as needed.) The variance, o², is| (Round to the nearest…

A: Given : The distribution is binomial distribution  and  n = 50 , p = 0.2

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.