A college placement office sent a questionnaire to a sample of business school graduates requesting information on monthly starting salaries. The data consists on values 3450, 3490, 3550, 3730, 3650, 3540, 3480, 3925, 3355, 3520, 3310, 3480. Find variance for starting salary for the sample of 12 business college graduates

Q: One researcher collected a sample of expenses for advertisement from 5 companies as follows: 50, 60,…

A: The sample mean is, x¯=∑xn=50+60+55+58+725=2955=59 The sample mean is 59.

Q: A: 16,17, 25, 26, 32, 34, 38, 40, 42, B: 14,16,24,28, 32, 35, 37, 42, 43, 45, 47 Test whether two…

A: Hypothesis testing is a statistical test to check whether the claim about the population parameter…

Q: Calculate the coefficient of variation for products sold per store using this sample data 0, 77, 38,…

A: From the provided information, The data values are as follow: 0, 77, 38, -5, 44, 62

Q: 3. 157, 133, 232, 267, 289, 274, 321, 348, 188, 432

A: We have given that,  The data set is,  157,133,232,267,289,274,321,348,188,432 Then,  We will find…

Q: Hello, How do you set up and solve? Thank You!

A: Variance of the sampling distribution of the proportions:Consider p-hat as the sample proportion and…

Q: Consider the data: 85, 40, 110, 122, 90, 146, 113, 63, 131, 92, 78Find the first, second and third…

A:

Q: In a recent survey of 100 new vegetarians, 74 said that their new

A: Given information: The sample size is 100. Out of 100 new vegetarians, 74 said that their new…

Q: calculate the mean of the two samples: sample 1: 10, 11, 11, 9, 8 sample 2: 17, 12, 14, 18, 14

A: Mean comes under measure of central tendency.

Q: Calculate the variance products sold per store using this sample data 0, 77, 38, -5, 44, 62

A: Given data is,0, 77, 38, -5 , 44,  62sample size(n)=6

Q: A population of a certain LGBTQ+ community is consist of six (6) measurements 2,3,6,9,11 and 5…

A: Given: population 2 3 6 9 11 5

Q: Find the variance for the given sample data. 18, 18, 18, 9, 15, 5, 10, 5, 15,10,15

A: The sample mean is, x¯=∑iXn=18+18+18+9+15+5+10+5+15+10+1511=13811=12.5455 The sample mean is…

Q: Find the variance of the number of storms in August.

A: X: Number of thunderstorms in August.

Q: ) If the probability of a student receiving financial aid is 0.72, find the mean and variance of the…

A: Given: probability of a student receiving financial aid is 0.72 p=0.72 number of students(n)=40000

Q: find variance for sample collected     10,15,18,19,0,21,21,25,30

A: xx2101001522518324193610021441214412562530900∑x=159∑x2=3417

Q: List two ways to identify a simple random sample.

A: Definition: Simple random sampling is defined as a sampling technique where every item in the…

Q: The amount spent on textbooks for the fall term was recorded for a sample of five university…

A: According to the provided information, the data are $400, $350, $600, $525, and $450

Q: What is the variance using this equation, with the following data: 76, 88, 67, 80, 44, 65, 50, 98,…

A: Sol: Given data, 76, 88, 67, 80, 44, 65, 50, 98, 55, 45, 23, 44, 65, 78, 66, 56, 89, 76, 87, 29

Q: A nationwide job recruiting firm wants to compare the annual incomes for childcare workers in Texas…

A: The independent sample z test, compares the mean difference between two independent population…

Q: find sample variance  for given data 12,15,4,69,85,63,34,75,62,69,56,52,85

A:

Q: Find the 5th and 95th percentiles for average temperatures from a group of 106 people using the…

A: The pth percentile of a set of observations is the value below which, p% or (p/100) proportion of…

Q: what is the  z score of 128,101,116,119,131 when the mean is 119 and variance is 36

A: It is given that  Mean, μ = 119 Variance, σ2 = 36 Standard deviation, σ = 6 Z-Score, Z = ( X - μ )/σ

Q: Find the variance and standard deviation of the set. {68, 48, 65, 38, 52, 71, 41, 46, 54, 67, 44,…

A:

Q: Compute for Quartile Deviation, Variance, and Coefficient of Variation 12, 24, 25, 25, 19, 19, 24,…

A:

Q: For a sample of n=15 scores, how many scores are used to calculate the sample variance ?

A: Given that : For a sample of n=15 scores, how many scores are used to calculate the sample variance…

Q: for givendata   2.12,3.45,6.15,2.54,1.23,5.02,4.05,5.20,3.25,4.25

A: The given data is 1.23, 2.12, 2.54, 3.25, 3.45, 4.05, 4.25, 5.02, 5.20, 6.15

Q: Compute the sample variance of the following data: 3, 4, 23, 52, 55, 64, 65, 65, 67, 67, 68, 72,…

A: Answer - Compute the sample variance of the following data: 3, 4, 23, 52, 55, 64, 65, 65, 67, 67,…

Q: find population variance for given data  12,89,77,56,95,42,63,8,5,99

A:

Q: find sample variance for given data 12,15,4,69,85,6,56,89,6,47

A:

Q: Indicate whether the five number summary corresponds most likely to a distribution that is skewed to…

A: From the information, the five number summary is given below:Minimum is 100, Q1 is 110, median is…

Q: Get the variance of the sampling distribution

A: The sample mean is given by 87.8 and we have to calculate the sample variance.

Q: Compute the sample variance for y = {2,26,24,40,-12,-6,10,28}

A:

Q: Seventy-four percent of Americans favor spending government money to develop alternative sources of…

A: According to the provided information, Sample size (n) = 120 Probability (p) = 0.74

Q: find sample variance for given data  89,78,7,51,36,56,45,78,85,21,96,68

A:

Q: A government agency computed the proportion of U.S. residents who lived in each of four geographic…

A: Claim : The proportions of people living in the various regions changed between the current year and…

Q: Among 1815 randomly selected high school students surveyed by the Centers for Diseases Control, 300…

A: The sampling distribution of sample proportion is generated using the sample proportions of repeated…

Q: Find the Variance and standard Deviation of 70,12,42,45,50,51,60,69,8,40,18

A:

Q: A telecommunications company knows that 90% of their customers own smart phones. Ten customers are…

A: Let "X" be the customers who own smartphones. The variance of the binomial distribution is given by

Q: Find the variance and standard deviation of the set. {43, 56, 40, 66, 53, 68, 50, 52, 61, 49, 39,…

A:

Q: Espaí A nationwide job recruiting firm wants to compare the annual incomes for childcare workers in…

A:

Q: In a survey,  55% of the voters support a particular referendum. If 40 voters are chosen at random,…

A: Given that, 55% of the voters support a particular referendum.  Sample size = 40

Q: rcher asked a random sample of students at the library on a Friday night, “How many hours a week do…

A: If the selected sample or data for analysis is selected in such a way that randomization is not…

Q: A college placement office sent a questionnaire to a sample of business school graduates requesting…

A: mean x=sum of observation total number of observation =∑xin variance σ2 =∑(xi-x)2n-1

Q: . Suppose the proportion of American adults who work at home is 40%. For a random sample of 100…

A: Solution-: Given: n=100, P=0.40 (Population proportion) Let, p^- be the sample proportion

Q: In order to compare the real estate markets in Pittsburgh and Philadelphia, a realtor selected a…

A: n order to compare the real estate markets in Pittsburgh and Philadelphia,

Q: pooled variance is 135.

A:

Q: Ten students took their practical exam in Science. Out of 50 items ,they obtained the following…

A: Given : scores(x):  44, 49, 42 , 25 , 29 , 21 , 39 , 40, 47 , 45

Q: Calculate the variance of a sample for which n=5, sigmax^2=1320, sigmax=80

A: Given data n=5∑x2=1320∑x=80

Q: Consider a sample with data values of 53, 55, 70, 58, 64, 57, 53, 69, 57, 68, and 53. Computethe…

A: Given data : 53, 55, 70, 58, 64, 57, 53, 69, 57, 68, 53

Q: Define random variations?

A: The question is about time series analysis Introduction : Time Series : It is a statistical…

Q: Miss Mathica Kumpleto (MMK), a SHS Math teacher in Mathalino National High School would like to find…

A: (1)The population mean is calculated with the following formula below. \mu=\dfrac{1}{N}\sum…