Business Weekly conducted a survey of graduates from 30 top MBA programs. On the basis of the survey, assume the mean annual salary for graduates 10 years after graduation is $120,000. Assume the standard deviation is $45,000. Suppose you take a simple random sample of 40 graduates. Round all answers to four decimal places if necessary. a. What is the distribution of X? X N( 120000 45000 b. What is the distribution of ? a N( 120000 7115 c. For a single randomly selected graduate, find the probability that her salary is between $123,027 and $131,085. d. For a simple random sample of 40 graduates, find the probability that the average salary is between $123,027 and $131,085. e. For part d), is the assumption of normal necessary? O YesO No

Q: The examination results of a large group of students in statistics are approximately normally…

A: Formula : Z =(X - μ)/σ

Q: The Bank of Connecticut issues Visa and MasterCard credit cards. It is estimated that the balances…

A: Given: μ=830σ=260

Q: Babcock and Marks (2010) review survey data from 2003-2005 and obtained an average of µ = 14 hours…

A: Null hypothesis: H0: μ = 14. Alternative hypothesis: Ha: μ ≠14 Test statistic: The test statistic…

Q: use the values on the attached table to solve problems related to normal distribution. In a…

A: Given data,μ=20000σ=4000

Q: . A population forms a normal distribution with a mean of μ = 55 and a standard deviation of σ = 12.…

A: Given: Mean μ =55 S.D σ = 12 Sample mean is given by n for  each sample M For each sample computing…

Q: Business Weekly conducted a survey of graduates from 30 top MBA programs. On the basis of the…

A: As per our guidelines we are suppose to answer three sub parts. Given,sample…

Q: The starting salaries of individuals with an MBA degree are normally distributed with a mean of…

A: The normal distribution is the most useful theoretical distribution for continuous variables.…

Q: Find the standard deviation, σ, for the binomial distribution which has the stated values of n and…

A: n = 48; p = 3/5 X ~ N(n, p) Standard deviation = npq                                = 48×35×25…

Q: n a recent​ year, the scores for the reading portion of a test were normally​ distributed, with a…

A: Given that, Mean = 22.9 Standard deviation = 6.7

Q: In a study of life expectancy in a certain region, the mean age at death was 70 years, and the…

A:

Q: Determine the standard deviation of the probability distribution: 1 3 P(x) 0.48 0.27 0.19 06 Round…

A: Given,   What is standard deviation?

Q: ma Was 20 OMR. Assume the normal distribution applies and the standard deviation is 10 OMR. A- What…

A: Given Data : Population Mean,μ = 20 Population Standard Deviation,σ = 10

Q: Assume that X, the starting salary offer for psychology majors, is normally distributed with a mean…

A: Given,mean(μ)=47,507standard deviation(σ)=5,000

Q: What is the standard deviation of the probability distribution below? x P(X = x) 10.27 20.28 30.45 O…

A: The formula of the standard deviation, σ, is given by σ=∑x-μ2·P(x) where μ is the Expected value or…

Q: A normal distribution has μ = 80 and σ = 10.  What is the probability of randomly selecting a score…

A:

Q: A study shows that the normal time that a customer occupied a table in a fine dine restaurant is 1.2…

A: Solution-: Given: μ=1.2,σ=0.4,n=25 We find, (a)  What is the value of the mean of the sample means?…

Q: Based on historical daily stock prices for the first year after an IPO, the typical rate of return…

A: Note: Hi! Thank you for the question. As you have posted multiple sub-parts, according to our…

Q: The ages Senior High students enrolled at Sta. Catalina National High School are normally…

A: The ages Senior High students enrolled at Sta. Catalina National High School are normally…

Q: In Bay field, Ontario 65% of residents read the bay-field breeze, a local online blog. Dennis wants…

A:

Q: The proportion of adult women in the United States is approximately 51%. A marketing survey…

A: Note: Hey, since multiple subparts are posted, we will answer first three subparts according to our…

Q: n a large section of a statistics​ class, the points for the final exam are normally​ distributed,…

A: Note: Since you have posted a question with multiple subparts, we will solve the first three…

Q: The time sent waiting to hear back from a particular therapist office follows a normal distribution…

A: Given:Mean μ=204 standard deviation σ=25.7 What is the probability that a randomly selected person…

Q: Use the normal distribution to the right to answer the questions.   ​(a) What percent of the scores…

A:

Q: A random sample of n = 4 scores is selected from a population with a mean of 50 and a standard…

A:

Q: The Internal Revenue Service reports that the mean federal income tax paid in a recent year was…

A: In question, The Internal Revenue Service reports that the mean federal income tax paid in a recent…

Q: A new television series is to be shown. A broadcasting executive feels that his uncertainty about…

A: Given data: Mean = 18.2 Standard deviation = 1.5 To find: According to this executive, the…

Q: Business Weekly conducted a survey of graduates from 30 top MBA programs. On the basis of the…

A:

Q: Business Weekly conducted a survey of graduates from 30 top MBA programs. On the basis of the…

A: Since you have posted question with multiple subparts,we will solve first three subparts for you.To…

Q: A USA Today poll asked a random sample of 1012 U.S. adults what they do with the milk in the bowl…

A: Given Data: n=1012 p=0.7

Q: Business Weekly conducted a survey of graduates from 30 top MBA programs. On the basis of the…

A: As per our guidelines we can solve first three subpart and rest can be reposted. Solution-: Given:…

Q: most exhibition shows open early in the morning and closes late in the evening. a study of Saturday…

A: a) The time after the doors opened will 90%of the people who are coming to the Saturday show have…

Q: The number of dogs per household in a neighborhood is given in the probability distribution. Find…

A: The table shows the number of dogs per household in a neighborhood.

Q: The time it takes for acrylic paint to dry follows a normal distribution. If the mean is 2 hours and…

A: Solution: Let X be the time it takes for acrylic paint to dry. From the given information, X follows…

Q: What is the standard deviation of the probability distribution below? x P(X = x) 10 .27 20 .28 30…

A:

Q: - The length of time it takes college students to find parking spot at Kean University library…

A: Solution

Q: 10 percent of the students in a class of 100 are planning to go to graduate school. The standard…

A: It is given that n=100 and p=0.10.

Q: Business Weekly conducted a survey of graduates from 30 top MBA programs. On the basis of the…

A: Draw the normal curve and shade the area between z=-0.3404 and z=-0.1015. The required shaded area…

Q: The annual income of residence in certain county is normally distributed with a mean of $42,000 and…

A: The probability that a randomly chosen resident has income over $52,000 is 16% and it is calculated…

Q: A sample of n = 4 scores is selected from a normal population with a mean of µ = 50 and a standard…

A: Given values, We know that,

Q: The sample mean and sample standard deviation of all San Francisco student scores on the most recent…

A:

Q: According to a survey of the top 10 employers in a major city in the Midwest, a worker spends an…

A:

Q: The mean and standard deviation of a population are 200 and 20, respectively. What is the…

A:

Q: In a Math test, the mean score is 45 and the standard deviation is 5. Assuming the scores are…

A:

Q: Business Weekly conducted a survey of graduates from 30 top MBA programs. On the basis of the…

A:

Q: Suppose you sample one value from a uniform distribution with a =0 and b= 50. a. What is the…

A: Let X be a random variable which follows uniform distribution with probability distribution function…

Q: Heneroso & Co. distributes Christmas baskets to each employee with a mean cost of 2,500 pesos and a…

A:

Q: Business Weekly conducted a survey of graduates from 30 top MBA programs. On the basis of the…

A: Given information is Mean annual salary(μ)=$178000standard deviation(σ)=$39000random sample(n)=36

Q: The salaries ofelementary school teachers are normally distributed with a mean of $32,000 and a…

A:

Q: The Weschler Intelligence Scale (IQ) for Children is approximately normally distributed with a mean…

A: Thanks for giving opportunity to serve for bartleby students,   Hey, There ! Thank you for posting…

Q: The proportion of Americans who are satisfied with the way things are going in their lives is 82%.…

A: From the given information the sample size is (n) = 100 and the proportion of Americans who re…

Percentage

A percentage is a number indicated as a fraction of 100. It is a dimensionless number often expressed using the symbol %.

Algebraic Expressions

In mathematics, an algebraic expression consists of constant(s), variable(s), and mathematical operators. It is made up of terms.

Numbers

Numbers are some measures used for counting. They can be compared one with another to know its position in the number line and determine which one is greater or lesser than the other.

Subtraction

Before we begin to understand the subtraction of algebraic expressions, we need to list out a few things that form the basis of algebra.

Addition

Before we begin to understand the addition of algebraic expressions, we need to list out a few things that form the basis of algebra.