A person must score in the upper 2% of the population on an IQ test to qualify for membership in Mensa, the international high IQ society. There are 110,000 Mensa members in 100 countries throughout the world. If IQ scores are normally distributed with a mean of 100 and a standard deviation of 15, what score must a person have to qualify for Mensa? 22. TV viewing reached a new high when the Nielson Company reported a mean daily viewing time of 8.35 hours per household. Use a normal probability distribution with a standard deviation of 2.5 hours to answer the following questions about daily TV viewing per household. a. What is the possibility of a house viewing between 5 -10 hours a day? b. How many hours of TV viewing must a household have in order to be in the top 3% of all TV viewing households? c. What is the probability that a household views more than 3 hours of TV a day?

Q: Consider the following 10 exam scores: 28, 57, 58, 64, 69, 74, 79, 80, 83, and 85 Find the…

A: According to the provided information, the exam score is as follows: 28, 57, 58, 64, 69, 74, 79, 80,…

Q: The mean value of land and buildings per acre from a sample of farms is $1500, with a standard…

A: The mean is 1500 and the standard deviation is 300.

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Q: In the 1992 presidential election, Alaska's 40 election districts averaged 2023 votes per district…

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

Q: Suppose ACT Reading scores are normally distributed with a mean of 21.3 and a standard deviation of…

A: Mean()=21.3standard deviation()=6

Q: In the 1992 presidential election, Alaska's 40 election districts averaged 2065 votes per district…

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A:

Q: minutes. What percentage of his commutes will be between 13 and 26 minutes, to the nearest tenth?

A: Let X be the random variable that amount of time to arrive. Given that, X~N(μ=23,σ=5)

Q: Find the mean and standard deviation for the given data set, 34,56,23,11,76,85,94,54,66,10

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Q: Researchers measured the data speeds for a particular smartphone carrier at 50 airports. The highest…

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Q: Researchers measured the data speeds for a particular smartphone carrier at 50 airports. The highest…

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Q: A particular fruit's weights are normally distributed, with a mean of 772 grams and a standard…

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Q: Americans spend nearly $7 billion on Halloween costumes and decorations. Sample data showing the…

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Q: Suppose ACT Reading scores are normally distributed with

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Q: Assume that the mathematics scores on the SAT are normally distributed with a mean of 500 and a…

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Q: The Wechsler Intelligence Scale for Children is used, in several languages, in the United States and…

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Q: In the 1992 presidential election, Alaska's 40 election districts averaged 2031 votes per district…

A: Given: μ=2031,σ=570

Q: A standardized test has a pop. mean of 152 and a standard deviation of 16. Molly scores at the 91st…

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Q: As of 2020, 83 pitchers have been inducted into the Major League Baseball Hall of Fame. The…

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Q: Assume that the mathematics scores on the SAT are normally distributed with a mean of 500 and a…

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Q: The average travel time to work for a person living in Kokoma, Indiana, is 17  minutes.  Suppose the…

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Q: marketing analyst’s sample of six companies’ social media apps value were$25, $7, $22, $33, $18,…

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Q: 95% of 80 night students scored between 70% and 80% on a quiz. If this data is normally distributed,…

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Q: Suppose ACT Reading scores are normally distributed with a mean of 21.3 and a standard deviation of…

A:

Q: Assume that the mathematics scores on the SAT are normally distributed with a mean of 500 and a…

A: normal distributionμ = 500σ = 100P(570<x<640) = ?

Q: Suppose ACT Reading scores are normally distributed with a mean of 21.3 and a standard deviation of…

A: Given DataMean = 21.3Standard Deviation = 6Top 5 % is given by Finding the Z-value corresponding to…

Q: Find the standard deviation of the following data: 13,18,13,14,13,16,14,21,13

A: Given data is13, 18, 13, 14, 13, 16, 14, 21, 13Sample size(n)=9

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Q: Give the TI commands to find the mean, median, and standard deviation and compare to the original…

A: TI Calculator

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Q: Assume that the mathematics scores on the SAT are normally distributed with a mean of 500 and a…

A: normally distributed with a mean of  500μ=500 standard deviation of  100σ=100we have to find out…

Q: Find the standard deviation of the following data : 49,63,46,58,52,60,54

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Q: A sample of data is given as below:3, 5, 7. What is the standard deviation

A: The formula for sample standard deviation is,

Confidence Intervals

When we calculate intervals in probability and statistics, it can be simply termed as finding out a confidence interval. The confidence interval is usually calculated from the data set which is observed. The value of the parameter that needs to be calculated is present here only.