The average salary of a civil engineer is $75,000 with a standard deviation of $10,000. Find the salary ranges for unusual salaries. O Any salary less than $65,000 or greater than $85,000 O Any salary less than $55,000 or greater than $95,000 O Any salary less than $45,000 or greater than $105,000 The population is not normal so we cannot calculate the unusual salaries.

Q: The local aquarium houses sharks of various species. At the aquarium, Manolo is an adult male shark…

A: GivenManolo is an adult male shark withMean(μ)=2.67standard deviation(σ)=0.29lenght(x)=3.1Emma is an…

Q: On the planet of Mercury, 4-year-olds average 2.9 hours a day unsupervised. Most of the unsupervised…

A: Let X be amount of time spent alone and it is normally distributed. X~N2.9,1.4 , where μ=2.9and…

Q: The average temperature in Anchorage, Alaska, in January is 21'F with a standard deviation of 10°.…

A: For Anchorage, μ=21σ=10 Consider, the probability that the temperature in a January with a high of…

Q: On the planet of Mercury, 4-year-olds average 2.9 hours a day unsupervised. Most of the unsupervised…

A:

Q: John has two jobs. For daytime work at a jewelry store he is paid $15,000 per month, plus a…

A: We have given that, two jobs of John. First, daytime work at jewelry store and second one is, night…

Q: 10. Age of Senators The average age of Senators in the 108th Congress was 59.5 years. If the…

A: Given that Mean=μ=59.5 Standard deviation=σ=11.5 Find Z-score=(X-μ)/σ

Q: Brewed decaffeinated coffee contains some caffeine. VWe want to estimate the amount of caffeine in 8…

A: Obtain the 90% confidence interval for the population mean.   The 90% confidence interval for the…

Q: The price of stock A has a higher standard deviation than the price of stock B.  This tells that:…

A: We have given that the statement “The price of stock A has a higher standard deviation than the…

Q: The average salary of a male full professor at a public four-year institution offering classes at…

A: Obtain the 66th percentile salary for male professors. The 66th percentile salary for male…

Q: College and University Debt A student graduated from a 4 -year college with an outstanding loan of…

A: We have given that  For college student  X=10205 ,mu=8487,sigma=1858 And For university student…

Q: A car salesperson offers you a car at the price of $22,895. You look up the mean sales price for…

A: We have given that the random variable X that is sales price. Here, X = 22895 Mean = 21900 and…

Q: The mean annual income for people in a certain city (in thousands of dollars) is 42, with a standard…

A: The formula for mean of the Z-score is, Z=x¯-μσn Here n is the sample size, μ is the population mean…

Q: The weights of a certain type of steer follow a Normal model with a mean weight of 1165 pounds and a…

A: Mean = 1165 Standard deviation = 90 a) The required weight for a steer to be among the heaviest 10%…

Q: College and University Debt A student graduated from a 4-year college debt is $8489 with a standard…

A: formula for z-score is

Q: Major league baseball salaries averaged $3.26 million with a standard deviation of $1.2 million in a…

A: Given that  Major league baseball salaries averaged $3.26 million with a standard deviation of $1.2…

Q: College and University Debt A student graduated from a 4 year college with an outstanding loan of…

A:

Q: There is an average of 4 accidents in a week on a major highway in the city. What is the standard…

A:

Q: The average McDonald's restaurant generates $2 million in sales each year with a standard deviation…

A: Sample  (x) (x-x̄)2 1 2.6 0.1089 2 3.2 0.8649 3 2.2 0.0049 4 2.6 0.1089 5 2.2 0.0049 6…

Q: he scores of students on an exam are normally distributed with a mean of 424 and a standard…

A:

Q: World’s Smallest Mammal The world’s smallest mammal is the bumblebee bat, also known as the Kitti’s…

A: From provided information, a. Hypothesis can be constructed as: H0: bumblebee bats are having the…

Q: Lions gate produces and distributes about 30 movies per year. On average ,these movies rake in about…

A:

Q: The lifespan of a certain brand of car tires is approximately normally distributed. The car tires…

A: Given that the lifespan of a certain brand of car tires is approximately normally distributed. The…

Q: On the planet of Mercury, 4-year-olds average 3.2 hours a day unsupervised. Most of the unsupervised…

A:

Q: Brewed decaffeinated coffee contains some caffeine. We want to estimațe the amount of caffeine in 8…

A: Obtain the 90% confidence interval estimate for the true mean amount of caffeine in eight-ounce cups…

Q: Car speeds John Beale of Stanford, CA, recorded thespeeds of cars driving past his house, where the…

A:

Q: On the planet of Mercury, 4-year-olds average 3.1 hours a day unsupervised. Most of the unsupervised…

A: Given, Mean μ = 3.1Standard deviation σ = 1.3 a) Distribution X ~ N(3.1, 1.32 ) X ~ N(3.1, 1.69)

Q: For many years, a large book publisher has published an expansive series of introductory science…

A: Population: In statistical enquiry our interest lies about gathering information about some…

Q: , 4-year-olds average 3.1 hours a day unsupervised. Most of the unsupervised children live in rural…

A: Given: μ=3.1, σ=1.5 (a)As the population distribution is normal, it can be said that the…

Q: a.  What is the distribution of X? X ~ N(,) b.  Find the probability that the child spends less…

A: Hi, since the question have multiple sub-parts. As per the guidelines i am obliged to answer the…

Q: On the planet of Mercury, 4-year-olds average 3.2 hours a day unsupervised. Most of the unsupervised…

A: Given that

Q: 15. Annual Miles Driven The average miles driven annually per licensed driver in the United States…

A: a) z score for 16000 miles:

Q: The time needed to complete a final examination in a particular college course is normally…

A: Given Information: The time needed to complete a final examination is normally distributed with a…

Q: What value will be used as the point estimate for the standard deviation of endowment of all private…

A: Answer:-

Q: On the planet of Mercury, 4-year-olds average 2.8 hours a day unsupervised. Most of the unsupervised…

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

Q: On the planet of Mercury, 4-year-olds average 3.1 hours a day unsupervised. Most of the unsupervised…

A:

Q: On the planet of Mercury, 4-year-olds average 3.2 hours a day unsupervised. Most of the unsupervised…

A: Given Mean=3.2 Standard deviations=1.3

Q: On the planet of Mercury, 4-year-olds average 3.2 hours a day unsupervised. Most of the unsupervised…

A: As per the guidelines, we are only allowed to solve three subparts. Please post the remaining…

Q: On the planet of Mercury, 4-year-olds average 3.1 hours a day unsupervised. Most of the unsupervised…

A: Let X denote the amount of time child spends alone per day (a) The distribution of X is, X ~…

Q: burban Families Watched An Average Of μ = 60 Minutes Of Television Each Day. Assuming That The…

A: Given dataMean µ = 60 minStandard deviation σ = 25 minutesa) proportion of 2-year-old children watch…

Q: The weights of a certain type of steer follow a Normal model with a mean weight of 1191 pounds and a…

A: Given,  mean(μ) = 1191 standard deviation(σ) = 54

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

A: Given information- Population mean, µ = $40,000 Population standard deviation, σ = $5,000 We have to…

Q: Student loan debt is the only form of consumer debt that has grown since the peak of consumer debt…

A: We have given that.    X~N( μ , ?^2 )    μ =24350     , ? = 3000   ,n= 30   Z-score =( x - μ )/?

Q: Credit Card Debt It has been reported that the average credit card debt for college seniors at the…

A: Given problem Given that   Credit Card Debt  It has been reported that the average credit card…

Q: On the planet of Mercury, 4-year-olds average 3.1 hours a day unsupervised. Most of the unsupervised…

A:

Q: On the planet of Mercury, 4-year-olds average 2.9 hours a day unsupervised. Most of the unsupervised…

A:

Q: . Which group do you think has the larger standard deviation? OA. The Africa group should have the…

A: Given Information: No. of population=2 Name of the populations: 1. European Country.…

Q: The average teachers salary in a particular state is $54,166.If the standard deviation is…

A: According aur policy we can answer only first three subpart for remaining please repost the…

Q: survey finds that the prices paid for two-year-old Ford Fusion cars are normally distributed with a…

A: Given Mean=17500 Standard deviations=500

Q: On the planet of Mercury, 4-year-olds average 3.2 hours a day unsupervised. Most of the unsupervised…

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.