In the month of July, the average electrical Eversource bill in Amherst Massachusetts is $72 with a standard deviation of $6. Suppose that the electrical bills are normally distributed, what is the probability that the average electrical bill in Amherst for 15 residents is less than $75? Select one: A. 78.45% B. 23.27% C. 97.38% D. 31.21%

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Q: Your company makes lamps. 96% pass final inspection (and 4% fail and need to be fixed). a) If we…

A: Given,n=20p=0.96Let X=no.of lamps pass final inspection.X~Binomial(n=20 , p=0.96)P(X=x)=cxn…

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Q: The mean admission charge for a movie is RM5.80. The distribution of movie admission charges is…

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Q: The Virginia Cooperative Extension reports that the population mean weight of yearling Angus steers…

A: Given,Mean μ = 1152Standard deviation σ = 84Let X denote the weight of a randomly selected yearling…

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Q: Given that the length an athlete throws a hammer is a normal random variable with mean 50 feet and…

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Q: 2. A study by Quadrant Information Services commissioned by Insure.com calculated auto insurance…

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Q: In a region the energy consumption for a family per month averages 1145 kWh and one standard…

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Q: The Bank of Hawaii reports that 7% of its credit card holders will default at some time in their…

A: It is a binomial distribution, as either the cardholder will default, or it won't, and the…

Q: A survey showed the following probabilities of having X number of dogs per household X = number 1 3…

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Q: 5. The average number of acres burned by forest and range fires in a large New Mexico county is…

A: 5) Given Information: Mean μ=4300 Standard deviation σ=750

Q: mally distributed with a mean of $2.39 and a standard deviation of $0.15. 1. What is the…

A: Given: Population mean μ=2.39 Population standard deviation σ=0.15 Let X ~ N (2.39, 0.152)

Q: Given the following data for an imaginary superhero universe: Flying Telepathy Super Strength Female…

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Q: A survey sponsored by the Vision Council shows that 79% of adults need correction for their…

A: The type of distribution is used in this problem is binomial distribution Reason: There are two…

Q: State Farm Insurance studies show that in Colorado, 60% of the auto insurance claims submitted for…

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Q: The meat department at a local grocery store specifically prepares their “1 pound” packages of…

A: Given that: The meat department at a local grocery  store specifically prepares their "1 pound"…

Q: On average a supermarket sells 500 litres of milk a day with a standard deviation of 50 litres. If…

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Q: A bank vice president feels that each savings account customer has, on average, three credit cards.…

A: a) Mean =E(X) =0(0.2)+1(0.3)+2(0.01)+3(0.09)+4(0.4) =2.19

Q: find the probability

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Q: Need help with this one please.

A: Given that ; Mean = 7.2 inches S. D. = 1.3 inches P[ x<   1.3]     =  ?????  By using standard…

Q: what is the probability that the total duration of your 32 jobs is more than 34 hours? b) What is…

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Q: Newborn elephant calves usually weigh between 200 and 250 pounds-until October 2006, that is. If,…

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Q: Following safety protocols, Starburst serves its customers with a mean time of 7.5 minutes which…

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Q: 4. The weights of male basketball players on a certain collegiate basketball league are normally…

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Q: It is known that the distribution of the Wechsler Adult Intelligence test is n 130, and the standard…

A: Given, Mean (μ)= 130 Standard deviation (σ)=15

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Q: 4. Rochester, NY averages u=22.2 inches of snow for the month of December. The distribution of…

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Q: You were told that the amount of time lapsed between consecutive trades on the New York Stock…

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Q: Newborn Elephant Weights Newborn elephant calves usually weigh between 200 and 250 pounds-until…

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Q: According to a PEW Research Center survey, the mean student loan at graduation is $25,000. Suppose…

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Q: 1. A study shows that the cost of new textbook is approximately normally distributed with a mean…

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Q: a) No more than two of them dislike their mother in law? c) What is the expected number of women ()…

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Q: Newborn Elephant Weights Newborn elephant calves usually weigh between 200 and 250 pounds-until…

A: Let X is the weight of newborn elephant. X~Normalμ=225,σ2=452

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.