TV set: a Nielson company report states that the mean number of tv sets in a U.S household is 2.24. assume the standard deviation is 1.2. a sample of 85 households is drawn. what is the probability that the sample mean number of tv sets is greater than 2?

Q: The mean preparation fee H&R Block charged retail customers last year was $183(the Wall Street…

A: Solution: Note: Hello! As you have posted more than 3 sub parts, we are answering the first 3…

Q: The number of miles a certain brand of tires lasts is normally distributed with a mean of 30,000…

A: The mean of the certain brand of tires lasts is 30,000 miles. The standard deviation of the certain…

Q: The mean selling price of senior condominiums in Green Valley over a year was $215,000. The…

A: Note: Thank you for the question. Since multiple subparts are posted, according to our policy, we…

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…

Q: 8. The reading speed of sixth-grade students is approximately normal, with a mean speed of 135 words…

A:

Q: The mean preparation fee H&R Block charged retail customers last year was $183(the Wall Street…

A:

Q: Calculate the standard deviation value by finding the value a in the table so that the random…

A: From the given information, x 0 1 3 4 f(x) 2/5 a 3/20 7/20 The value of a is obtained…

Q: "Ch6. Traveling between University of Santo Tomas and Rizal Park, Manila via shuttle bus takes, on…

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Q: A town has 500 real estate agents. The mean value of the properties sold in a year by these agents…

A: Note: (1). According to Bartleby expert guidelines, we can answer only first question with their…

Q: A road averages 2,785 vehicles per day with a standard deviation of 585 vehicles per day. A traffic…

A: Let X be the random variable from normal distribution with average or mean (μ) = 2785, standard…

Q: amounts of money requested on home loan applications at an office of savings follow the normal…

A: Given, μ=780000σ=20000

Q: A citrus farmer has observed the following distribution for the number of oranges per tree. ​ (1)…

A:

Q: inversecdf(normaldist (μ,o)p) The length of wear on Spinning Tires is normally distributed with a…

A: Given data: μ = 60000 σ = 5000   Formula Used: Z-score = X-μσ

Q: A municipality is planning a new residential area with 3,000 households. The municipal executive…

A: Hello! As you have posted more than 3 sub parts, we are answering the first 3 sub-parts.  In case…

Q: What is the standard deviation of the following probability distribution? Round to tenths place.

A: Expectation: Second raw moment:

Q: 1.) A bottling company uses a filling machine to fill plastic bottles with cola. The bottles are…

A: (a) The content of a bottles follows normal distribution with mean μ = 298 ml and standard deviation…

Q: York Corporation manufactures an Al car that requires three AA batteries. The mean life of these…

A:

Q: Rochester, NY averages m=21.9 inches of snow for the month of December. The distribution of snowfall…

A: Let X represents the amount of snowfall, then we are given the information that  X follows normal…

Q: Webrooming, researching products online before buying them in-store, has become the new norm for…

A: (A) The probability that a male spent less than $224 online before deciding to visit a​ store is,

Q: The mean preparation fee H&R Block charged retail customers last year was $183(the Wall Street…

A: a) The mean is 183 and standard deviation is 50. The sample size is 30. The required probability is…

Q: a. What is the mean of the time interval? b. What is the standard deviation of the time interval? c.…

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Q: The average GPA at the University of North Carolina is 3.2, with a standard deviation of 0.3. Assume…

A: According to the provided information, Mean (μ) = 3.2 Standard Deviation (σ) = 0.3

Q: After deducting grants based on need, the average cost to attend the University of…

A:

Q: In its Fuel Economy Guide, the Environmental Protection Agency gives a variety of data on 2016 model…

A: Note: Hey, since there are multiple subparts are posted, we will answer first three subparts for…

Q: find the probability

A:

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

A: Solution : Given that, The mean weight for newborn elephant calves is 225 pounds and Standard…

Q: 10 Newborn Elephant Weights Newborn elephant calves usually weigh between 200 and 250 pounds-until…

A:

Q: Compute the mean, variance, and standard deviation of the probability distribution given on the…

A: Given, Probability distribution table is

Q: After deducting grants based on need, the average cost to attend the University of Southern…

A: Given information- Population mean, μ = $25,575 Population standard deviation, σ = $7200 a) Sample…

Q: Aaliyah is 74 years old. Based on a normal distribution with mean 47.8 years and standard deviation…

A: Formula : Z =(X - μ)/σ

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

A: Hi! Thank you for the question, As per the honor code, we are allowed to answer three sub-parts at a…

Q: 7. The Real Estate Group NY reports that the mean monthly rent for a one-bedroom apartment without a…

A: Given: μ=2631σ=500n=100

Q: ed for évents held at City- Community theatre are believed to be normally distributed with a mean of…

A: Given data, μ=12,000σ=1000

Q: (a) What is the probability that the amount of collagen is greater than 66 grams per mililiter?…

A: Mean (µ) = 76 grams per mililiter Standard deviation (σ) = 6.9 grams per mililiter Let X be a random…

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: Five hundred children participated in a field demonstration. Their heights averaged 110cm with a…

A:

Q: Weekly Income of Private Industry Information Workers The average weekly income of information…

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Q: The lengths of lumber a machine cuts are normally distributed with a mean of 92inches and a standard…

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Q: Ryanair charges a mean base fare of $59. In addition, the airline charges for checking in at the…

A:

Q: Prices of homes in Raleigh, North Carolina are Normally distributed with a mean of $231,600 and a…

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: The mean preparation fee H&R Block charged retail customers last year was $183(the Wall Street…

A:

Q: an gas mileage for a hybrid car is 56 miles per gallon. Suppose that the gasoline mileage is…

A: Hello! As you have posted more than 3 sub parts, we are answering the first 3 sub-parts.  In case…

Q: The mean annual cost of automobile insurance is $939 (CNBC, February 23, 2006). Assume that the…

A: Given that mean =939 , s.d = 245

Q: A university has 1,000 computers available for students to use. Each computer has a 250-gigabyte…

A: a). Given: Mean=x¯=15Stanadrd deviation=s=20Sample size=n=100 The formula of standard error is…

Q: The average starting salary for new college graduates in business administration is $47,500. Assume…

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Q: Records of a health insurance company show that 30% of its policyholders over 50 submit a claim…

A: 30% of the policyholders over 50 submit a claim during the year. So, the probability that a…

Q: Cans of regular Coke are labeled as containing 12 oz. Statistics students weighed the contents of 8…

A: Given,sample size(n)=8mean(μ)=12standard deviation(σ)=0.11

Q: The amount of cereal in a carton is listed as 18 ounces. The cartons are filled by a machine, and…

A:

Q: After deducting grants based on need, the average cost to attend the University of…

A: It is given that the mean is 27,175 and the standard deviation is 7,400.

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.