find the standard deviation and variance

Q: assumptions are required to perform an analysis of variance.

A: What is Analysis of Variance (ANOVA)? Analysis of variance (ANOVA) is an analysis tool used in…

Q: At another park, at a random selected time, there were 80 individuals having a picnic. It was found…

A: From the provided information, Sample size (n) = 80 40% of them were fully vaccinated that is p =…

Q: Fourty six percent of the students in a class of 150 are planning to graduate school, Find the…

A: Answer: From the given data, Sample size(n) = 150 Forty six percent of the students are planning to…

Q: Compute the (sample) variance and standard deviation of the data sample. (Round your answers to two…

A: The data set is2, −3.4, 3.9, −0.8, −0.8Sample size(n)=5

Q: The Analysis of Variance (ANOVA) is used to determine if there is a difference between a selected…

A: ANOVA, the analysis of variance is the technique used to check if there is significant difference…

Q: How do you find the Homogeneity of Variance met? How do you know?

A: Homogeneity of variance is an assumption in statistics used both for t and F tests, especially in…

Q: Compute the (sample) variance and standard deviation of the data sample. (Round your answers to two…

A: To compute sample variance and standard deviation of the data sample. 1.9, -4.9, 3.3, -0.2, -0.2…

Q: If   n =41  and    p=0.6  then the variance of the binomial distribution is

A: X~B(n,p)P(X=x)=nxpx(1-p)n-x                     x=0,1,2,3,...,nE(x)=mean=npvariance=np(1-p)

Q: A fair coin is tossed three times (consecutively). If X is the number of heads of the first shot and…

A: It is an important part of statistics . It is widely used .

Q: The probability of a defective product produced in a production process is 0.26. What is the…

A: From the provided information, The probability of a defective product produced in a production…

Q: To obtain a maximum amount of variance, an item ought to have a degree of difficulty of what?

A: To obtain a maximum amount of variance an item ought to have a degree of difficulty is the number of…

Q: Find the standard error,  t statics Sample variance = .67 Sample size = 30 Population  size = 60…

A: Given information- Sample variance, s2 = .67 So, sample standard deviation, s = 0.819 Sample size, n…

Q: 1 example of mean and variance

A:

Q: The variance statistic is an unbiased estimator of the population variance.

A: here  ,  suppose population variance is σ2 sample variance is s2

Q: Test the Variances. Assume both populations are normally distributed HA:0 > o (Claim) si = 5.7, s =…

A: Given : H0:σ12≤σ22H1:σ12>σ22   Claim s12=5.7  ,  s22=3.1n1=5  ,       n2=26α=0.01

Q: Find the variance of the weight of all the beans in a box. Please provide where did you get the…

A: Farmula used V(nY)=n2V(Y)

Q: variance standard deviation

A: here given , sample data -4,4,4,6,10

Q: Derive the variance of the Student’s t distribution , show complete and detailes solution

A: Objective of this question is that, drive the variance of T distribution. Given  T~t distribution…

Q: An alternative hypothesis must include the anticipated direction of variance. True  False

A: We have given statement  "An alternative hypothesis must include the anticipated direction of…

Q: The sum of the squared deviation scores is SS = 20 for a sample of n = 6 scores. What is the…

A: The variance of the sample can be calculated as:

Q: What is the expression for PROPORTION OF EXPLAINED VARIANCE, η2 (ONE-FACTOR ANOVA)?

A: The proportion of explained variance is known as the coefficient of determination. It is the ratio…

Q: If the F-statistic is large, then they variance ___ is much larger than the variance ___.

A: We have given that,  If the F-statistic is large, then they variance ___ is much larger than the…

Q: What's the variance i dont under stand

A: Given information X~Bin(n,p) q=1-p Mean=np and Variance=np(1-p)

Q: What is the quare root of variance?

A: Given : Variance (σ2) is given

Q: How do you find variance with only the standard deviation and number of values?How do you find…

A: Variance is square of standard deviation. So, if you are given standard deviation, then simply…

Q: Here is the amount of soda in fluid ounces in a simple random sample of 11 cans. 31  35  33  31  30…

A:

Q: ? Estimates of variance can be used to test a hypothesis because?

A: These estimates are formulated to interpret the means and also to discuss whether the sample means,…

Q: The formula for total variance (SST) is

A: Solution:-

Q: The number of people in a car that crosses a certain bridge is a random variable x. The toll on the…

A: Given  The random variable X denotes the number of people in a car  The toll charges: $ 5 per car…

Q: How to Reconstruct the Variance step by step?

A:

Q: How to find the variance of a set of numbers

A: Variance:- The amount of data values spread from the mean is known as variance.

Q: Find the value of variance in the Binomial distribution where there are 5 samples and p=0.3.

A: The formula of the variance for binomial distribution is,where,n denotes the sample sizep denotes…

Q: ANOVA looks at both between subjects and within subjects variance. Looking at variance in one…

A: We have given that ANOVA looks at both between-subjects and within-subjects variance. We have to…

Q: What does it mean that the variance (computed by dividing by N) is a biased statistic?

A:

Q: Cell Phone Lifetimes A recent study of the lifetimes of cell phones found the average is 23.2…

A: