The ages of employees in a certain company were bell-shaped with mean 28 and standard deviation 5. What is the percentage of employees whose ages are between 28 and 33? Select one: O a. Approximately 100% O b. Approximately 47.5% O C. Approximately 95% d. Approximately 68% e. Approximately 34%

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A:

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A: Given data: Sample size = 100 Population mean = 165 Population standard deviation = 5.9

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Q: G iven:  mean =85    s=12     n =3500 What % of scores are between 97 to 109 ?

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Q: U. What is tne probablity that a sample mean of 35 players will bê bêtwéén 69 and 70.5 in.? E Click…

A: A

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A: Hi! Thank you for the question. As per the honor code, we are allowed to answer three sub-parts at a…

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A: Solution: Let X be the marks of students. The data for X is 50, 61, 62, 85, 83, 77, 79, 70

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Q: The scores on the Wechsler Adult Intelligence Scale are approximately Normal, with  = 100 and  = 11.…

A: The scores on the Wechsler Adult Intelligence Scale are approximately Normal

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A: Explained below

Q: If the shaded area corresponds to z=-0.90, what proportion of the distribution corresponds to z >…

A: We have given that the shaded area correspond to z = -0.90.

Q: ? a. z = 0.91 b. z = -0.91 c. z = 0.43 d. z = -0.43

A: Solution

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A: Given

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Q: 1. Given the data set which represents quiz scores in your math class: 12, 15, 16, 16, 17, 22 find…

A: Note: Hi! Thanks for posting the question. Since there are more than three sub-part questions, we…

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

A: Let X be the number of winning games played. Here, X~N( 250, 832) X~N(250,832)⇒Z=X-25083~N(0,1) a.)…

Q: University Salary ($1,000) A 53 B 44 C 68 D 47 E 62 F 64 G 53 H 100  For the above…

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Q: The number of regular season wins for 10 college football teams in a given season are given below:…

A: x x2 2 4 10 100 15 225 5 25 13 169 10 100 15 225 9 81 7 49 4 16     ∑x=90…

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A: The level of measurement is Ordinal Scale. The ordinal type of measurement allows for rank order by…

Q: His .A Mean of population .B Mean of sample .C mode I need answer within 3 minutes with my best…

A: The solution is given below.

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Q: You have a piggy bank containing approximately $1000.00, all in loonies, and you ask a large number…

A: Mean()=975Standard deviation()=15

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A: The formula of the margin of error is, Where, UCL denotes the upper control limit   LCL denotes the…

Q: The scores on the Wechsler Adult Intelligence Scale are approximately Normal, with ?=100 and ?=15 .…

A: From the given information,  Consider, X be scores on the Wechsler Adult Intelligence Scale are…

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A: To find :  Distribution  are less than the third  quartile.

Q: The IQs of individuals form a normal distribution with mean = 100 and s = 15. A. What percentage of…

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Q: Calculate the mean (average).  Select one: 70.05 73.10 73.24 74.05 74.95

A: Consider the below table:

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Q: C2. GSS 2014 and GSS 2018 respondents were asked their opinion on whether homosexuals should have…

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Q: Given the data set: 194,219,93,299,191, calculate the deviation score associated with 93. Enter your…

A: The mean is calculated as follows: μ=∑xN  =194+219+93+299+1915  =199.2 The mean is 199.2.

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Q: The percentile is the:   Question 5 options:   same thing as a percentage.   percentage of scores…

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Q: What symbol is used for the standard deviation of a population? O a. X-bar O b.H O C. S O d. o

A: Standard deviation: The positive square root of the mean square of the deviations taken from the…

Q: 1. A class had a quiz in Statistics. The scores of the students has a mean of 87 and standard…

A: Given,mean(μ)=87standard deviation(σ)=3

Q: Of the 200 American film enthusiasts, the average age is: 30 years, while the standard deviation is…

A: The normal distribution in the center is generally denser and basically less dense at tails. There…