a. Expecte:d Value b. Variance

Q: 7. A/n is the difference between an obser model being studied and contains information abe B. Range…

A: Answer : A Residual is a difference between an observation (yi,j) and its estimated value from the…

Q: The appropriate statistical tool for predicting the value of a random variable based on the values…

A:

Q: Which is the correct answer? The role of the covariate is to:  a.  Compare variables of interest…

A: Covariate: Covariates aredefined as the participants in an experiment. It is an independent…

Q: What is the variance? 3.7 4.1 3.2 4 3.8 3.6 3.7 3.4

A: Given:The data values are as follow:3.7, 4.1, 3.2, 4, 3.8, 3.6, 3.7, 3.4

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 variance for the following data set.  State your result as a decimal value with two…

A: The values are 1, 2, 3, 4, 5, 6. Variance can be calculated using the formula.

Q: Given a binomial variable with a mean of 30 and a variance of 21, what is p?

A: X~Binomial(n , p) Mean=30, Variance=21

Q: Find the mean and variance for the binomial distribution, P=0.37,n=22

A: Answer: From the given data, p = 0.37  and  q = 1 - p = 1 - 0.37 = 0.63 sample size ( n )= 22

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: need answer for expected value

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

Q: Find variance of standard deviation 278

A: GivenStandard deviation(σ) = 278

Q: A relatively new breed of cat that first appeared in China frequently suffers from joint problems.…

A:

Q: What is a statistical research tool that is used to simultaneously test the equality of multiple…

A: We are given that  A statistical research tool that is used to simultaneously test the equality of…

Q: In a project you are managing, if you estimated the optimistic(a), most likely(m) and pessimistic(b)…

A:

Q: Which of the following is (are) TRUE when variances are heterogeneous across treatments?…

A: Please find the explanation below.

Q: Find the mean and variance for the binomial distribution, P=0.56 and n= 8

A: Number of trials n=8 Success of probability p=0.56 X~binomial (n,p)

Q: Why do we take the square root of the variance to obtain the standard deviation? to make the…

A: We know that, Standard deviation: It is the positive square root of the arithmetic mean(A.M.)  of…

Q: Show that X is a sufficient estimator of the mean u of a normal population with the known variance…

A: X~N(μ,σ2)

Q: Mean = 1103° C Median = 1104° C Standard deviation (S) = Variance (S2) = = Mode (m) = 1104° C No. of…

A: According to the given information in this question We need to calculate standard deviations and…

Q: A. Mean = 1.445 %3D B. Variance = 22.603 C. Standard Deviation = %3D

A: X p(x) xp(x) (x-xbar)^2 p(x)*(x-xbar)^2 -4 0.573 -2.292 29.64803 16.98832 7 0.149 1.043 30.85803…

Q: A value of r2=.09 is considered what for the effect size test of the percentage of variance…

A: Given, r2=0.09

Q: Find the mean and variance for the Binomial distribution, P=0.36 and n = 33

A: Answer: From the given data, P = 0.36  and  n = 33

Q: compare the variance of the number of correct picks on a "take Five" ticket? compute the standard…

A:

Q: Find the mean and variance for the binomial distribution,  P=0.45 and n=12

A: Answer:- Given, Sample size, n = 12 Probability of success on a trial, p = 0.45 Using formulas,…

Q: Coefficient of variation is ascertained by: a. Standard Deviation/Mean X 100 b. Mean/Standard…

A:

Q: eck for difference in variances? To determine whether the z-table or the t-table should be used. To…

A: Given that ; I solved this question by using the assumptions of difference in means.

Q: A sample has n = 16 scores,  a mean of M = 45 and has an estimated standard error of 4 points (sM  =…

A: Given information is  A sample has n = 16 scores, a mean of M = 45 and has an estimated standard…

Q: What is the quare root of variance?

A: Given : Variance (σ2) is given

Q: What does the coefficient of determination tell you?     a.Percent of shared variance b.Effect size…

A: Identify the correct option for coefficient of determination explains. The correct option is…

Q: What is meant by the grand mean?

A:

Q: Why is the standard deviation used more frequently than the variance? Choose the correct answer…

A: The question is about measures.Introduction :Variance :1 ) It is used to measure how much amount of…

Q: In the variance analysis table given below, "*" and "?" Calculate the places indicated by,…

A: Given information: Source of variability SD KT KO Regression  1 * 12 Error     ? General 5…

Q: Discuss the reasons why the Pearson Correlation Coefficient, or "r" is also referred to as: 1.…

A: Correlation coefficient r is standardized value of covariance. It is normalized measurement of the…

Q: maria has calculated the variance for a set of data and now takes the square root of that value. she…

A: Variance is calculated by taking the summation of squared deviation of observations from their mean…

Q: Solve the problem. Assume that mountain lions' weights are normally distributed with a mean of 62.6…

A: We have given that,  X be the random variable from normal distribution with mean (μ) = 62.6 ,…

Q: Is it possible for the standard deviation of a dataset to be larger than its variance? Explain…

A: The objective is to state whether it is possible for the standard deviation of a dataset to be…

Q: The expected value of a random variable X that is denoted by u is called its a .variance b.mean C.…

A: The expected value of a random variable X that is denoted by u is called its ?

Q: Find the variance for the binomial distribution, P=0.87 and n= 32

A: Answer: From the given data, P = 0.87 n = 32 X follows binomial distribution (n,p)