A group of 500 volunteers recorded an average age of 21.5 years and standard deviation of 9.6 years. Assumed the distribution is normally distributed. a. Find the number of volunteers with ages less than 20 years. b. Find the number of volunteers with ages greater than 22 years.

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A: a).The sample mean is given as 52.3.The sample standard deviation is 6.8The sample size, n is 6.The…

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A: Note: Hi, thank you for the question. As per our company guideline we are supposed to answer only…

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Q: A packing machine is programmed to fill a cardboard box with 16.1 ounces of cereal on average.…

A: GivenMean(μ)=16.1 ouncesstandard deviation(σ)= 1.13 grams = 0.03985958 ounces

Q: The weights for newborn babies is approximately normally distributed with a mean of 6.2 pounds and a…

A: GivenMean(μ)=6.2standard deviation(σ)=2.1Group of Newborn babies=900

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A:

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A:

Q: According to survey data, the distribution of arm spans for females is approximately Normal with a…

A: According to the given information in this question We need to answer subpart

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A:

Q: The systolic blood pressure of adults in the USA is nearly normally distributed with a mean of 120…

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A: Let X denote the systolic blood pressure of adults in the USA is nearly normally distributed with a…

Q: The systolic blood pressure of adults in the USA is nearly normally distributed with a mean of 120…

A:

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A:

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A: Given Mean=65 Standard deviations=7

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A: Given,mean(μ)=268standard deviation(σ)=15

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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.