The salaries of elementary echool teachere are normally dietributed with a mean of $32,000 and a standard deviation of $3000. If a teacher is selected at random, find the probability that he or she makes less than $ 36,000. Select one: a. 0.1667 b. 0.9082 c. 0.8213 O d. 0.185

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Q: The average credit card debt for college seniors is $3000. If the debt is normally distibuted with a…

A: A) The senior owes at least $1200

Q: The mean weight of newborn infants at a community hospital is 6.6 pounds. A sample of seven infants…

A: Sample points are 9.0,7.3,6.0,8.8,6.8,8.4,6.6. Sample size = n = 7.

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Q: A quart of Parker's milk contains a mean of 39 grams of butterfat, with a standard deviation of 2…

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A:

Q: A manufacturer knows that their items have a normally distributed length, with a mean of 9.6 inches,…

A: Given : Let X be a r.v X : Length of items (in inches)  Mean (μ) = 9.6 S.D (σ) = 1.8

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Q: The cafeteria records that 67% of students buy pizza with a standard deviation of .03 If you took a…

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Q: A laptop producer has been getting complaints on the batteries they install. Particularly, the…

A: probability of overheating =P =9/20 =0.45 Let x be the random variable denoting the number of…

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Q: has averaged 7.48 mg/L with a standard deviation of 1.6 mg/L. If 10 students measure the sulfate in…

A: Given: sample size, n = 10Mean, μ =7.48std. deviation, σ = 1.6

Q: Regardless of the kind of workout a gym goer does, the mean time spent on the treadmill is 44…

A:

Q: Regardless of the kind of workout a gym goer does, the mean time spent on the treadmill is 45…

A: According to the given information, we have Mean = 45 Standard deviation = 15 Sample size, n = 36

Q: The probabilities that a person is receiving a chat message 0, 1, 2, 3, 4, or 5 per day are the…

A: Let X be the random variable having probability distribution is,  X 0 1 2 3 4 5 P(x)  0.08 0.19…

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Q: The heights of strawberry plants are Normally distributed with a mean of 12 inches and a standard…

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Q: The time it takes for acrylic paint to dry follows a normal distribution. If the mean is 2 hours and…

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A: GivenMean(μ)=57standard deviation(σ)=9.25

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A: It is given that:

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Q: A study found that the heights of college males follow a normal distribution with a mean of 70…

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Q: A banks loan officer rates application for credit. Their ratings are normally distributed with a…

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Q: c. What is the probability that exactly ten of the 45 luxury cars sold are silver? d. What is the…

A: It is given that n=45 and p=0.191.

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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.