A portfolio with a beta of 0.7 with market and residual variance of 10, market variance being 196 , the total risk in terms of stand

Q: A population has SS = 100 and a variance = 4. What is the value of sigma(X-mu) for the population?

A: Hello, Thanks for posting your question here.  Here it is asked to find the value of sigma(X-mu) for…

Q: 7.12 In 2009, the average charge for tax preparation by H&R Block, Inc. was $187. Assuming a normal…

A: Hi! Thank you for the question, As per the honor code, we are allowed to answer three sub-parts at a…

Q: Co 1. The average age of attendees at an amusement park is 45.8 years old. 50 randomly selected…

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Q: Question 6 The height of girls follows a normal distribution with mean u = 170 cm and the variance…

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Q: Monthly sales have a mean of $15,000 and a standard deviation of $3,000. Weekly profits are…

A: It is given that weekly profits are calculated by multiplying sales by 40% and subtracting fixed…

Q: Investors commonly use the standard deviation of the monthly percentage return for a mutual fund as…

A: Hey, since there are multiple subparts posted, we will answer first three subparts. If you want any…

Q: Question 6 The height of girls follows a normal distribution with mean u = 170 cm and the variance…

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Q: Question 6 The height of girls follows a normal distribution with mean u = 170 cm and the variance…

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Q: QUESTION 7 The weekly salaries of public health workers in one state are normally distributed, with…

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Q: A snack food manufacturer estimates that the variance of the number of grams of carbohydrates in…

A: Given  σ2=1.36, n=16, s2=1.27, ɑ=0.01

Q: he monthly incomes of recent MBA graduates in a large corporation are normally distributed with a…

A: a)Given data,Mean μ=2000sd σ=200X=2300z=?

Q: The amount of time it takes to recover physiologically from a certain kind of sudden noise is found…

A: Given DataMean =80Standard Deviation = 1050 %34% - 1 standard Deviation away from mean14% - 2…

Q: X is a normally normally distributed variable with mean μ = 30 and standard deviation σ = 4. Find a)…

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Q: QUESTION 5 A sample of 60 mutual funds was taken and the mean return in the sample was 13% with a…

A: Given  n=60 , Mean=Xbar=13% , Standard deviation=sigma=6.9% mu=11.5% Test statistics =1.68 Critical…

Q: A population of scores is normally distributed with a standard deviation equal to 7. State whether…

A: Standard error is given by- SE=σn It will increase as standard deviation will increase and decrease…

Q: A population of scores is normally distributed with a standard deviation equal to 7. State whether…

A: If the standard deviation increases then the standard error will increase and if the standard…

Q: 13 Find out the likely production corresponding to a rainfall of 40 cms. from the following data :…

A: Regression Equation: When we want to predict the value of one variable, say Y, from the given value…

Q: answer parts​ (a) through​ (e). Assume the population variances are not equal. If​ convenient, use…

A: Given Data : For Sample 1 x̄1 = 42400.0 s1 = 8400.0 n1 = 10 For Sample…

Q: A snack food manufacturer estimates that the variance of the number of grams of carbohydrates in…

A:

Q: . Using the 10% significance level, can you conclude that the mean hourly earnings of both groups…

A: Given Data : For Sample 1 x̄1 = 10.60 s1 = 1.05 n1 = 20 For Sample 2…

Q: Consider the following service system. a) The average inter-arrival time is 10 minutes, and the…

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Q: A personnel director in a particular state claims that the mean annual income is greater in one of…

A: There are two variables which are country A and country B. For this problem, we have test whether…

Q: Question 4 The average height of students in a freshman class of a certain school has been 165.24 cm…

A: Yes there is sufficient evidence to believe that the height of freshman student changed based on…

Q: A. The average age of bank managers is 40 years. Assume that the variable is normally distributed.…

A: For A given that, the average age of bank manger is 40 years. And the age of bank manager is…

Q: QUESTION 9 What is the probability of measuring the length of a projectile as 3.35 cm or less, if…

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Q: QUESTION 10 Find P(11 < X < 15) if X is normally distributed with a mean of 14 and standard…

A: Given mean μ =14standard deviation σ =2

Q: You have a portfolio of investment which consists of Stock A with a retum of A% and Stock B with a…

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Q: Question 3 Suppose that the fill amount of bottles of soft drink has been found to be normally…

A: As per our company guidelines we are supposed to answer only first 3 sub-parts. Kindly repost other…

Q: A firm knows from its past experience that its monthly average expenses (X) on advertisement are Rs…

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Q: A snack food manufacturer estmates that the variance of the number of grams of carbohydrates in…

A: Given, Random sample is 22. Sample variance is 1.08 Population variance is 1.22. a) Hypotheses:…

Q: a) If a distribution is skewed, it's better to give the median and IQR instead of the mean and…

A: HERE AS PER POLICY I SHOULD HAVE  TO CALCULATE 3 SUB PART EVEN THOUGH I HAVE CALCULATED 4 here use…

Q: 7. Sketch two normal curves on the axis below with approximately equal standard deviations, one with…

A: We have given that the equal standard deviation, one with a mean of 7 and other with a mean of 12.

Q: Question 2 Customers arrive at a bank according to a Poisson process at a rate of 100 per hour. 20%…

A: Given, customer rate= 100/h total working hours=8h Amt. of withdrawal=X~N(5000,20002) Amt. of…

Q: Given that x is a normally distributed variable with mean equal to 40 and standard deviation equal…

A: P(x ≤ 45) = 0.8413

Q: As an owner of a business, having a consistent level of sales is important. Prior to the recession…

A: From the provided information, The sample size (n) = 29 Sample standard deviation (s) = $754

Q: Heights for preschool-aged students are approximately normally distributed with a mean of 40 inches…

A: We have to find out given probability..

Q: Analyze and solve the following problems: 1. A research student is testing the growth of aloe vera…

A: Formula : Z =(X - μ)/σ

Q: A personnel director in a particular state claims that the mean annual income is greater in one of…

A: Given Information: County A: Sample size (n1) = 12 Sample mean (x¯1) = $40,800 Standard deviation…

Q: A population has a u=50 and o=10. If these scores are transformed into z- Scores, the population of…

A: Given that mean =  E(X) = 50 and SD(X) = 10, then  Var(X) = 102 = 100

Q: From a recent census, we obtain the following decomposition of the Australian population according…

A: From the provided information, The proportion of individuals who hold a postgraduate (Master and/or…

Q: QUESTION 14 An investor has decided to form a portfolio by putting 45% of his money into Google's…

A: The given statistics for the two stocks include μG=12%μA=20%σG=0.10σA=0.20 And the proportion, x,…

Q: If our data is considered to follow a Normal distribution, then we would expect to find…

A: We know that, The Empirical rule states that 95% of data observed following a normal distribution…

Q: A snack food manufacturer estimates that the variance of the number of grams of carbohydrates in…

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Q: The birth weights for twins are normally distributed with a mean of 2353 grams and a standard…

A: Given  μ=2353σ=647z=x-μσ

Q: A certain data set has a variance of 9.  Find the standard deviation of the data set.

A: Given :-   Variance (S2) =9   we have to find standard devistion.

Q: A group of six, obese adult men had their weights recorded both before and 10 months after having a…

A: Number of obese people (n) = 0.05 Given weights before and after treatment are

Q: A personnel director in a particular state claims that the mean annual income is greater in one of…

A: Note: Hey there! Thank you for the question. As you have posted a question with more than 3…