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?

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A: Bar chart is given here. Error bars gives the information about how the data is spread around the…

Q: Suppose you know the population average wage in the manufacturing industry in the U.S. is $26.72 per…

A: Type II error = P( Fail to reject Ho| When mu = 25)

Q: What

A: Explanation and solutions is given below....

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A: Note: Hi there! Thank you for posting the question. As there are multiple sub parts, according to…

Q: In the 1992 presidential election, Alaska's 40 election districts averaged 2118 votes per district…

A: Note: Thank you for the question. Since multiple subparts 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

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Q: The following data represent the number of people aged 25 to 64 years covered by health insurance​…

A: Solution Age Number (f) Midpoint (x) f*x x2 f*x2 25-34 27.3 29.5 805.35 870.25 23757.825…

Q: Psychological and educational tests, including MMPI are often designed so they have a mean of 50 and…

A: Given that  They have a mean of 50 and a standard deviation of 10.

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A: Given data, 12, 15, 16, 20, 20, 27 Sort the data in ascending order. 12,15,16,20,20,27

Q: Suppose you know the population average wage in the manufacturing industry in the U.S. is $26.72 per…

A: true mean value = 25 mu = 26.72 s = 2.6

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A: The given data set is, 10,71,21,64,35,35,34,45,54,17,11,95,42,33,66,29 Here, we have to construct a…

Q: Suppose ACT Reading scores are normally distributed with

A: From the given information, μ=21.3σ=6 A university plans to award scholarships to students whose…

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Q: TRUE OR FALSE: A z-score indicates the number of standard deviations a data value is ab below the…

A: Standardized z-score: The standardized z-score represents the number of standard deviations the data…

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A: The given data is - Standard deviation (σ)=2 Mean(x)=6.2 Sample size(n)=186

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A:

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

A:

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A: Hey, since there are multiple subparts posted, we will answer first three subparts. If you want any…

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

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A:

Q: Given the following data: 8,5,6,10,8,3,6 find the A. Median B.Sample Mean C.Sample standard…

A: Given data, 8,5,6,10,8,3,6   Sort the data in ascending order. 3,5,6,6,8,8,10

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Q: According to the US Bureau of Labor Statistics, the average American consumer in 2018 spent $7,923…

A: mean = 7923 s = 1592 z-value = 1.282

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A: Given Mean=45 Standard deviations=5.25

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.