A recent study of teacher salaries in rural areas showed that the average salary was $30,000/year with a standard deviation of $3,000. A) Using the same salary and standard deviation, find the probability that 1 teacher will earn more than $28,000/year

Q: The average age of accountants is 53 years, with a standard deviation of 5 years. If an accounting…

A: We have to find probability..

Q: At a large department store, the average number of years of service was 13.5 years with a standard…

A: The objective of this question is to find the probability that a randomly selected employee has…

Q: A Texas Instrument calculator operating life is normally distributed with a mean of 3,850 hours, and…

A: Given information- Population mean, μ = 3850 hours Population standard deviation, σ = 350 hours…

Q: A study indicates that​ 18- to​ 24- year olds spend a mean of 140 minutes watching video on their…

A:

Q: The fares received by Uber Drivers working in the City line are normally distributed with a mean of…

A: Let X be a continuous random variable of fares received by Uber Drivers working in the City line are…

Q: according to a survey conducted by wedding book, women who celebrated valentines day last year spend…

A: given data, normal distribution μ=86σ=27 probability that a randomly selected woman who celebrated…

Q: study of the amount of time it takes a mechanic to rebuild a car's transmission shows that the mean…

A: Mean=M=8.4, Standard deviation=S=1.8

Q: The credit card debt for college seniors is normally distributed with an average of $3262 and a…

A:

Q: The typical American adult eats an average of 48.5 hamburgers in a year. Assume the number of…

A: The information provided in the question are as follows :- The average number of hamburgers eaten by…

Q: Deforestation along the Sierra Madre mountains have been especially notorious. The average number of…

A: It is given that  Mean, μ = 4115 Standard deviation, σ = 610 Z-Score, Z = ( X - μ )/σ

Q: Tiger Woods hits an average driver 287.2 yards with a standard deviation of 24.6 yards. What is the…

A: The probability value is calculate by means of standard normal variate with the random variable,…

Q: Because of slight, natural variation in the manufacturing equipment, the amount of caffeine in…

A: According to the provided information, μ=80σ=0.083

Q: The salary for workers at a company are normally distributed with a mean of $60,000 and a standard…

A: Solution: Let X be the salary for workers at a company. From the given information, X follows normal…

Q: Full-time college students report spending a mean of 29 hours per week on academic​ activities, both…

A: We have given that,  Let X be the random variable from normal distribution with mean (x̄) = 29,…

Q: Suppose your customers' incomes are normally distributed with a mean of $37,500 with a standard…

A:

Q: Assume the values of accounts receivable by a corporation are distributed with a true mean of…

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Q: According to the Bureau of Labor Statistics, the average number of weeks an individual is unemployed…

A: The Z-score of a random variable X is defined as follows: Z = (X – µ)/σ. Here, µ and σ are the mean…

Q: A courier company that operates in the Tijuana metropolitan area takes an average of 36 minutes to…

A: Answer: From the given data, Let X denotes delivery time of a courier company that operates in the…

Q: According to the Advertising Age, the average base salary for men at middle management positions are…

A: “Since you have posted a question with multiple sub-parts, we will solve first three subparts for…

Q: The average number of pounds of red meat a person consumes each year is 196 with a standard…

A: We are given,μ = 196σ = 22n = 60

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

A: According to the given information in this question We need to find the probability that MBA degree…

Q: The mean cost of domestic airfares in the United States rose to an all-time high of $395 per ticket.…

A: Hey, since there are multiple sub-part questions posted, we will answer first three questions. If…

Q: In a recent year, grade 7 Maryland State public school students taking a mathematics assessment test…

A: In a recent year, grade 7 Maryland State public school students taking a mathematics assessment test…

Q: The net weight of a can of salmon is a random variable with a mean of 6.21 ounces and a standard…

A: Solution

Q: airfares in the United States rose to an all-time high of $375 per ticket. Airfares were based on…

A: Comment: As per the our company guidelines we are supposed to answer only three subparts. Kindly…

Q: Traveling between two campuses via shuttle bus takes, on average, 28 minutes with a standard…

A:

Q: The heights of athletes at a college have mean 69.5 inches and standard deviation 3.3 inches. Find…

A: From the given information,   Mean= 69.5 Standard deviation = 3.3   The objective is to find the…

Q: The average salary of recent graduates with bachelor’s degrees in chemical engineering is $53,600…

A: Population mean (μ): $53,600Population standard deviation (σ): $3,200Sample size (n): 30Sample mean…

Q: Data from the Bureau of Labor Statistics’ Consumer Expenditure Survey show that annual expenditures…

A: Given information- For the year 2001- Population mean, µ = $235 Population standard deviation, σ =…

Q: Which graph will be use to present the favourite T.V show during previous year?

A: Here, the data consist of scores of favorite television show during the previous year. This is…

Q: A manufacturing company produces electric insulators. You define the variable of interest as the…

A: Confidence Interval: Confidence interval is the interval estimate of the population parameter. It is…

Q: The weights of ice cream cartons are normally distributed with a mean weight of 10 ounces and a…

A:

Q: Suppose the average age of a Tulane undergraduate is 20 years with a standard deviation of 1.2…

A:

Estimation

A new framework of data analysis where the new statistical methods are used for interpreting the results and analyzing the data is known as estimation in statistics.