At one point the average price of regular unleaded gasoline was ​$3.48 per gallon. Assume that the standard deviation price per gallon is ​$0.09 per gallon and use​ Chebyshev's inequality to answer the following. ​(a) What percentage of gasoline stations had prices within 3 standard deviations of the​ mean? ​(b) What percentage of gasoline stations had prices within 2.5 standard deviations of the​ mean? ​(a) At least nothing​% of gasoline stations had prices within 3 standard deviations of the mean. ​(Round to two decimal places as​ needed.)   ​(b) At least nothing​% of gasoline stations had prices within 2.5 standard deviations of the mean. ​(Round to two decimal places as​ needed.)

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A:

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A: Given : p₀ = 0.5 , n= 400

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Q: A researcher wants to investigate the effects of environmental factors on IQ scores. For an initial…

A: Z= p^ -μp^σp^~ N(0,1)

Q: At one point the average price of regular unleaded gasoline was ​$3.44 per gallon. Assume that the…

A: From the question, it is given thatAverage prFrom the question, it is given thatAverage price of…

Q: Twelve percent of the world's population is left-handed. A researcher daims that left-handed…

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Q: At one point the average price of regular unleaded gasoline was ​$3.75 per gallon. Assume that the…

A: a) Suppose a random variable X defines the price of regular unleaded gasoline.

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A: The median is the middlemost item.

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A:

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A:

Q: The graph illustrates the distribution of test scores taken by College Algebra students. The maximum…

A: QUESTION 1 SOLUTION: (less than 54) Step 1: Convert to z-score Formula:z=σx−μ​where;x = raw scoreμ =…

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A: List of formulae : Test statistic : t =rn-21-r2 Where , r is correlation coefficient. r =…

Q: A researcher wants to investigate the effects of environmental factors on IQ scores. For an initial…

A:

Q: The graph illustrates the distribution of test scores taken by College Algebra students. The maximum…

A:

Q: A researcher wants to investigate the effects of environmental factors on IQ scores. For an initial…

A: The sample size n is 400.

Q: student of the ninth grade with a total s, scored 75 in an exam in which the m E all students was 70…

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Q: Consider two completely different data sets: price per gallon of gas in Fort Pierce and SAT scores…

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Q: A researcher wants to investigate the effects of environmental factors on IQ scores. For an initial…

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Q: At one point the average price of regular unleaded gasoline was ​$3.65 per gallon. Assume that the…

A: We have to find givén values...

Q: At one point the average price of regular unleaded gasoline was ​$3.44 per gallon. Assume that the…

A: given that mean =3.44

Q: the mean for the Verbal Reasoning section was 151 with a standard deviation of 9, and the mean score…

A: Note: According to bartleby experts question answers guidelines an expert can solve only first three…

Q: Consider two completely different data sets: price per gallon of gas in Fort Pierce and SAT scores…

A:

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Q: A researcher wants to investigate the effects of environmental factors on IQ scores. For an initial…

A:

Q: At one point the average price of regular unleaded gasoline was ​$3.54 per gallon. Assume that the…

A: The question is about Chebyshev's inequality.Introduction :At least  % of the data lie within k…

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Q: Prove that the sum of deviations from mean is zero.

A: Statement: The sum of deviations from mean is zero.

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A: Hello there! there are more than 3 subparts in the question. According to our policies cannot answer…

Q: (a) Find the mean of p, wherep is the proportion of left-handed individuals in a random sample of…

A: Let p be the proportion of left-handed people. Given that p = 12 % = 0.12 Sample size is n = 1650.

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A:

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Q: Suppose a normally distributed set of stock prices with 4100 observations has a mean of 114 and a…

A: Given data  Normal distribution μ = 114σ = 16 N = 4100 empirical rule : approximately  68 -95- 99.7…

Q: At one point the average price of regular unleaded gasoline was ​$3.61 per gallon. Assume that the…

A: Given Information: Mean μ=$3.61 Standard deviation σ=$0.05 Chebyshev's inequality states that at…

Q: A researcher wants to investigate the effects of environmental factors on IQ scores. For an initial…

A: Solution: From the given information, n = 400, p-hat = 0.515 and p = 0.50.

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.