particular group of men have heights with a mean of 181 cm and a standard deviation of 8 cm. Richard had a height of 193 cm. Convert Richard's height to a z score. The z score is

Q: the variance and standard deviation are based on the________________?

A: Variance, standard deviation and mean deviation:Variance is the average of squared difference of…

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A: The mean and standard deviation of daily sales is : x=$28372.72s=$2000 For Tuesday, the sales were…

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Q: if heights of 3rd graders follow a normal distribution with a mean of 52 inches and a standard…

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Q: Given a distribution with a mean of 60 and standard deviation of 21, find a value with a z-score of…

A: Introduction:Consider X as a normally distributed random variable, with mean μ and standard…

Q: The heights of adult men in America are normally distributed, with a mean of 69.1 inches and a…

A: Given that,For adult men,Mean = 69.1Standard deviation = 2.67And,For adult women,Mean = 64.1Standard…

Q: A set of test papers is normally distributed with a standard deviation of 5. If Riley scored an 83…

A:

Q: The heights of adult men in America are normally distributed, with a mean of 69.5 inches and a…

A: Solution: Let X be the height of adult men in America. From the given information, X follows normal…

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A: From the given Information, Let X represent the length of pregnancies in a small rural village and…

Q: . Given a distribution with a mean of 60 and standard deviation of 21, find a value with a z-score…

A:

Q: Students at Arrowhead High School took a Math test with a mean of 120 and a standard deviation of…

A: Let X be the random variable of normal distribution with mean 120 and standard deviation 25 Let Z be…

Q: 2. The mean height for men is 70 inches with a standard deviation of 5 inches. Find the z- score of…

A: For the first question there is no data of 12 adult males in an office. So, iam answering for the…

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A: Let X be a random variable of normal distribution with mean 120 and standard deviation 25.  Let Z be…

Q: 1.A particular leg bone for dinosaur fossils has a mean length of 5 feet with a standard deviation…

A: Note: Please repost 2nd question as i can answer only 1 question as per my policy. 1) Given…

Q: A set of data items is normally distributed with a mean of 80 and a standard deviation of 9 .…

A: Given A set of data is normally distributed with mean of 80 and standard deviation of 9 and x=71.so,…

Q: For a population with a standard deviation of σ = 6, what is the z-score corresponding to a score…

A: We are given:

Q: For a population with a standard deviation of 20, what is the zscore corresponding to a score that…

A: The population standard deviation is 20. The z-score corresponding to a score that is 5 points below…

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A:

Q: A group of male basketball players has a mean height of 79 inches and a standard deviation of 1.7…

A: Introduction: Denote X as the height of a randomly chosen male basketball player. A group or sample…

Q: The monthly income from a particular occupation is normally distributed, with a mean of 3800 dollars…

A: Given,mean(μ)=3800standard deviation(σ)=500

Q: Given a distribution with a mean of 70 and a standard deviation of 62, find a value with a z-score…

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Q: The heights of students are normally distributed with a mean of 59 inches and a standard deviation…

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Q: A set of data items is normally distributed with a mean of 60. Convert the data item to a z -score,…

A: Solution: z-score for given data item is 1.

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A: We have given that,  Let X be the random variable from normal distribution with mean (μ) = 241 and…

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Q: All the houses in Stanton county have a mean size of 1650 square feet with a standard deviation of…

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Q: The heights of 18 year old men are normally distributed with a mean of 67 inches and a standard…

A: Given information- Population mean, µ = 67 inches Population standard deviation, σ = 3 inches We…

Q: The heights of adult men in America are normally distributed, with a mean of 69.8 inches and a…

A: Givendata for adult men Mean(μ)=69.8standard devaition(σ)=2.62data for adult…

Q: At Pacific Freight Lines, bonuses are given to billing clerks when they complete 300 or more freight…

A: Given information Mean µ = 270 Standard deviation σ = 16 proportion of the time should a randomly…

Q: A set of data items is normally distributed with a mean of 60. Convert the data item of 55 to a…

A: Given that: Mean = 60Standard deviation = 5Data item = 55

Q: The lengths of pregnancies in a small rural village are normally distributed with a mean of 262 days…

A: Let X be the lengths of pregnancies in a small rural village x¯=262sd=16 X~ Normal (262, 162)   For…

Q: Suppose that water usages in American showers are normally distributed, with an average shower using…

A: Given Information: μ=20 and σ=3.2 (b) To estimate the percentage of showers that used more than 26.4…

Q: The lengths of pregnancies in a small rural village are normally distributed with a mean of 263 days…

A: Solution-: Given: μ=263 days, σ=13 days We want to find what range would you expect to find the…

Q: On an exam, Tom scored 8 points above the mean and had a z-score of +2.00. The standard deviation…

A: Given: z-score=2 Score above the mean=8

Q: The average score of the students of a certain class in a 100-item quiz is 83 with a standard…

A:

Q: A set of data items is normally distributed with a mean of 40 and a standard deviation of 8. Convert…

A: Given:  Random variable x follow normal distribution with mean mu=40 ,sd=8  Then z score:…

Q: The heights of male students are normally distributed with a mean of 170 cm and a standard deviation…

A: The heights of male students are normally distributed with a mean of 170 cm and a standard deviation…

Q: For a recent 10k​ run, the finishers are normally distributed with mean of 56 minutes and a standard…

A: Given data,μ=56σ=13P(45<X<70)=?

Q: A particular fruits weights are normally distributed, with a mean of 797 grams and a standard…

A: Let us assume X= weight of a particular fruit Given that X follows a normal distribution with mean=…

Q: The heights of adult men in America are normally distributed, with a mean of 69.7 inches and a…

A:

Q: Assume that males have a mean hieght of 69.1 in. with a standard deviation of 2.9 in., and females…

A: Given  that  males have a mean height of 69.1 in. with a standard deviation of 2.9 in. and  female…

Q: A farmer claims that the average fat content in his chickens is 29 g. A researcher tested 36…

A: From the provided information, Sample size (n) = 36 Sample mean (x̅) = 30.1 g Sample standard…

Q: A lawyer commutes daily from his suburban home to his midtown office. The average time for a​…

A: The Z-score of a random variable X is defined as follows: Z = (X – µ)/σ. Here, µ and σ are the mean…

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A: The normal distribution: A continuous random variable X is said to follow normal distribution with…

Q: a data set has a mean of 210 and a standard deviation of 40, what is the z- Score for a ralue of140…

A: We have given that  Mean =mu=210 , standard deviation(sigma)=40 and x=140 X~N(mu,sigma^2)…

Q: A set of data items is normally distributed with a mean of 40 and a standard deviation of 6. Convert…

A: Given set of data is normally distributed with mean = 40Standard deviation = 6The Z score for any…

Q: If a raw score is 28 in a distribution in which the mean is 20 and the standard deviation is 2, what…

A: Given information- Population mean, µ = 20 Population standard deviation, σ = 2 We have to find the…

Q: Suppose a class average on a test is 75 and the standard deviation is 10. if joe scores 80 on the…

A:

Q: A set of data items is normally distributed with a mean of 60 and a standard deviation of 9. Convert…

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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.