Household incomes in the city of Tampa Bay  are right-skewed with an average of 50,270 and standard deviation 8,000. Suppose a random sample of 48 households in Tampa Bay are randomly selected. Find the probability that the sample average is more than 52, 000.

Q: In the second quarter of 2015, the average movie ticket cost $8.61. In a random sample of 50 movie…

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Q: In a large population of college-educated adults, the mean IQ is 112 with standard deviation 25.…

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Q: A study of the amount of time it takes a mechanic to rebuild the transmission for a 2010…

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Q: The accountants of a known auditing firm have a mean daily salary of P850 with a standard deviation…

A: X~N(μ= 850 , σ= 82 ) μ= 850 , σ= 82 Formula for Z-score Z=(X-μ)/σ

Q: A civil engineer takes a public ride going to his firm. The average time for his trip is 24 minutes,…

A: Given Information: Population mean (u) = 24 minutes Standard Deviation (s) = 3.80 minutes Target…

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A: The normal distribution shows the probability value using the standard score or raw score. It is…

Q: Rivers Casino did an audit of all of their blackjack tables and found that the amount of money…

A: Provided information is, Rivers Casino did an audit of all of their blackjack tables and found that…

Q: Consider a gamble with a 40% chance of winning $10 and a 60% chance of losing $10. What is the…

A: Given data: The given chance of winning is P(W)=40%=0.40. The given chance of losing is…

Q: If X is a normally distributed random variable with a mean of 80 and a standard deviation of 12,…

A: Given that.   X~N( μ , ?^2 )   μ=80     , ?=12   Z-score =( x - μ )/?

Q: A study of the amount of time it takes a hiker to hike to the bottom of the Grand Canyon and back to…

A: Given: μ = 12 σ = 2.4 n = 9

Q: The director of admissions at Kinzua University in Nova Scotia estimated the distribution of student…

A: Given Observation and Calculation

Q: According to the study, the average number of hours that the student spent studying per week in the…

A: From the provided information, Mean (µ) = 56 hours Standard deviation (σ) = 14 hours X~N (56, 14)

Q: A newspaper survey found that 65% of readers found online tutorials useful. If a random sample of 9…

A: We have given that a Binomial distribution with parameters p=65% = 0.65 , q=1-p = 0.35 and sample…

Q: In 1999, the murder rates (per 100,000) for the 50 states and the District of Columbia had a mean of…

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Q: The state of California has a mean annual rainfall of 22 inches, whereas the state of New York has a…

A: For the given data Find all the required blanks

Q: average salary for a large company is $85,000 with a

A: Given Data Population Mean,μ = 85000.0 Population Standard Deviation,σ = 20000.0…

Q: For an exercise study, a large group of male distance runners walk on a treadmill for five minutes.…

A: From the given information,   Mean = 117.6 Standard deviation = 8.1   The objective is to find the…

Q: d) If they stop 30 cars during the first hour, find the mean and standard deviation of the number of…

A: Given Information: 90% of drivers do "buckle up" (wearing seat belts). (d) If they stop 30 cars…

Q: the life expectancy of 400 people in a certain geographic region, the mean age at death was 70…

A: Given, μ=70σ=5.1n=50

Q: If a random sample of size 14 is drawn from a normally distributed population with mean 43.5…

A: Let, X=the variable Given that X follows a normal distribution with mean=43.5 and standard…

Q: What is the standard deviation of the number of burglarized houses? What is the probability that…

A: Given : The probability that a house in an unban area will be burglarized is 5% . A sample of 50…

Q: a certain population of the herring, Pomolobus aestivalis, the lengths of the individual fish are…

A: Let X be a random variable which indicates the length of the fish. Here it is given that- mean(μ)=54…

Q: Suppose that the miles-per-gallon (mpg) rating of passenger cars is a normally distributed random…

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Q: Suppose the probability a patient will recover from a disease following medication is 0.7. In a…

A: Given : the probability a patient will recover from a disease following medication is 0.7.  In a…

Q: According to a government study, 15% of all children live in a household that has an income below…

A: The binomial distribution gives the probability of number of successes out of n trials in a series…

Q: 4. The average public elementary school has 468 students with a standard deviation of 87. If a…

A: Here use given step by step solution and normal distribution of sample mean

Q: Suppose in a certain primary school, the weight of boys are normally distributed with mean 28kg and…

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Q: A study at a college in the west coast reveals that, historically, 45% of their students are…

A: a) It is known that, the mean of the sampling distribution of sampling distribution, p-hat is equal…

Q: Assume the average height for all American women is 64 inches with a standard deviation of 2 inches.…

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Q: The heights of North American women are normally distributed with a mean of 64 inches and a standard…

A: Given data The heights of north American women are normally distributed with mean of 64 inches and a…

Q: A final exam in Reindeer Research Studies has a mean of 60 and a standard deviation of 5. If 25…

A: It is given that the mean is 60, the standard deviation is 5 and the sample size is 25.

Q: What is the probability of selecting a score greater than 50 from

A: Given μ= 55 and a σ=5.

Q: A quality control expert at a large factory estimates that 10% of all the batteries produced at the…

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Q: Assume you have a binomial distribution. In an experiment with 100 trials and a probability of a…

A: Given that, n=100 p=1/2 =0.5 Standard deviation=?

Q: A study of long-distance phone calls made from General Electric Corporate Headquarters in Fairfield,…

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

Q: A study of long-distance phone calls made from General Electric Corporate Headquarters in Fairfield,…

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

Q: Suppose the heights of 18 year old men are approximately normally diatributed, with mean 67 inches…

A: Mean = 67 Standard deviation = 5

Q: In a t distribution with 10 degrees of freedom, what is the probability of getting a value within…

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Q: A population of 25-28 year-old males has a mean salary of $29,321 with a standard deviation of…

A: From the information, the mean salary of $29,321 with a standard deviation of $2,120.

Q: Statisticians determined that the mortgages of homeowners in a city is normally distributed with a…

A: Given distribution is normally distributed. Mean=250000 Standard deviation=50000 X~N(μ=250000,…

Q: A recent survey taken by Adecco of 1,047 employees found that 28% of them would lay off their bosses…

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

Q: An electrical company claims that the average life of the bulbs it manufactures is 1200 hours with…

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Q: According to a study, the average number of hours of TV viewing per household per week in the…

A: To find the probability that:   a.) The sample average is more than 52 hours   b.) The sample…

Q: From past experience, it is known that the number of tickets purchased by students standing in line…

A: Given μ=2.4σ=2.0

Q: Suppose the heights of 18 year old men are approximately normally distributed, with mean 71 inches…

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

Q: For a normally distributed random variable with mean 44 and standard deviation 16, find the…

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Q: Suppose a set of 100 random numbers is normally distributed, with a mean of 50 and standard…

A: suppose a set of random numbers is normally distributed, with a mean of 50 and standard deviation 2.…

Q: Suppose that the average outstanding credit card balance for young professionals is 11,200 with a…

A: GIVEN DATA, μ=11200σ=2600If n=150P(X<12300)=?

Q: In recent years, the average movie ticket cost $7.89. In a random sample of 50 movie tickets from…

A: From the provided information, Mean (µ) = $7.89 Population standard deviation (σ) = $1.39 X~N (7.89,…

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.