The mean height of 790 students in a school is 151 cm and the standard deviation is 15 cm. Assume that the heights are normally distributed. How many students have heights between 119.5 cm and 155.5 cm? Select one: O a. 474 students b. 381 students c. 316 students d. 93 students e. 395 students

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Q: On a standard measure of hearing ability, the mean is 300 and the standard deviation is 20. Give the…

A: Given data ,Mean u=300S.D σ=20

Q: The average travel time to work for a person living and working in Kokomo, Indiana is 17 minutes. I…

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Q: In a departamental examination in  statistics given to 500 students, the mean score was 75 with a…

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Q: An instructor in a large lecture class found, at the end of the semester, that the total point…

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Q: A random sample of 40 students has a mean annual earnings of $3120 and assume that the population…

A: The margin of Error (MoR): It is the Range of values that has the sample statistics in the…

Q: Given that the mean for a data set is 24.8 and the standard deviation is 2.3, find the z-score of…

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Q: Compute the standard deviation of the sampled proportions if p=.4 and n=500. Round to three places.

A: We want to find standard deviation  X~Binomial(n=500,p=0.4)

Q: Suppose that the scores on a statewide standardized test have a bell shape distribution with a mean…

A: Given that Mean = 79,s.d=6 (b) P(X>97 )=? (c) P(X<73) =? (d)P(61<x<85) =?

Q: A distance is measured as 27.3 inches and 15.6 inches with the standard deviation (error) of 0.16…

A: Given information- We have given the mean and the standard deviation. E(X) = 27.3 inches E(Y) = 15.6…

Q: In a mango farm of 250 trees, the mean harvest is 96.5 kilos of fruit per tree with a standard…

A: Given,sample size(n)=250mean(μ)=96.5standard deviation(σ)=8.4

Q: If the weights of 8000 men follows a normal distribution with mean 67 kg. and the standard deviation…

A: Disclaimer: Since you have asked multiple questions, we will solve the first question for you. If…

Q: The diameters of watermelons at a local supermarket are normally distributed with a mean of 10…

A: Let X denote diameters of watermelons at a local supermarket. Given that X follows Normal(mean = 10,…

Q: The following data show the weights (in pounds) of 20 students in a class. Find the standard…

A: Given that data The weights of 20 students in a class. Number of data values (n) = 20 Sum of all…

Q: Given that the mean weight of senior high school students is 65kg with a standard deviation of 10kg.…

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Q: "The weights of 1,000 children, in average, is 64kg with standard deviation of 18kg. Suppose the…

A: Given that n=1000, mu =64 ,s.d =18 ,p(x<59 ) =?

Q: A group of students take a Statistics Exam where the average was M = 90 and the standard deviation…

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Q: Steel rods are manufactured with a mean length of 27 centimeter​ (cm). Because of variability in the…

A: Given,mean(μ)=27standard deviation(σ)=0.06

Q: (c) If the standard deviation remains at 0.5 ounce, what must the mean weight be for the company to…

A: Givenstandard deviation(σ)=0.5x=13 ounces

Q: For a certain species of snake, the mean length of an adult is 63.4 cm with a standard deviation of…

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Q: The mean weight of 500 male students at a certain college is 158lb and the standard deviation is 16…

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Q: Determine the difference X - Y for each matched-pair, then compute the mean and standard deviation…

A: X: 25,26,16,21,15Y: 28,31,30,22,29

Q: For a random sample of 10 men, the mean head circumference is x-bar= 57.3 cm and the sample standard…

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Q: Given a scenario where n=100 and p=0.8, find the standard deviation.

A: In this case the sample size is n = 100 and p = 0.8.

Q: On a measure of artistic ability, the men for college students in new zealand is 150 and tthe…

A: Given mean = 150Standard deviation = 25The Z score is calculated using the below mentioned formula…

Q: а. How many of the women have a height that is within 1 standard deviation of the mean? b. How many…

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Q: Given a normally distributed set of scores with mean = 86.5 and standard deviation a = 11.4,…

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A: Consider the equation

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A: 3.  Assume that the heights of 400 basketball players are normally distributed with a mean of 175 cm…

Q: The standard deviation of the given data is A. 1.4495 B. 1.4597 C. 2.1011 D. 2.1307

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Q: On a construction site, the amount of dirt scooped by a forklift machine is normally distributed…

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Q: "The weights of 1,000 children, in average, is 46kg with standard deviation of 11kg. Suppose the…

A: Consider that the mean and standard deviation of a random variable X are µ and σ, respectively.…

Q: In a class of twenty-five 15-year old girls the average height is M = 62.60 inches. The national…

A: It is given that M=62.6, μ=63.8 and σ=2.66. The z-statistic is calculated asz=M-μσ/nwhere M is the…

Q: (Q2) A store room measured in length equal to (5m + 3 cm), measured width equal to (4m 2cm) measured…

A: Given, Length =5m +3cm=500+3=503cm, Width =4m+2cm=(400+2)cm=402cm Height =3m+4cm=(300+4)cm=304cm.…

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Q: Suppose the heights of the members of a population follow a normal distribution. If the mean height…

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Q: The mean of a distribution is 50 and the standard deviation is 6. Using the empirical rule, find the…

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Q: The ratio of weight of the students is as follows in table - 1. Find the standard deviation of the…

A: Standard deviation of ungrouped data is σ=1n∑n=1nxi-x2.

Q: suppose the average time to fill a routine prescription at a local pharmacy is 35 minutes based on…

A: Given data,Mean μ=35sd    σ=11x=48z=?

Q: Assuming that the heights of college women are normally distributed with mean 62 inches and standard…

A: If Xis a normal variate with mean=μ, S.D=σ, then Z=x-μσ is a standard normal variate. That is, If…

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A: We have to calculate the mean and SD for the given frequency distribution of customer ratings.

Q: John beale of stanford, ca, recorded the speeds of car driving past his house, where the speed limit…

A: Given: μ=23.84σ=3.56 a) The Z score is obtained as below: z=x-μσ=20-23.843.56=-3.843.56=-1.08 Thus,…

Q: For a population that has a standard deviation of 22​, figure the standard deviation of the…

A: Population standard deviation = 22 We know that standard deviation of the distribution of means = σn

Q: Write down the formulas for the standard deviation of p.

A: Let sample size = n Sample proportion = p̄

Q: Suppose that the mean cranial capacity for men is 1040 cc (cubic centimeters) and that the standard…

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Q: The mean weight of 1000 students at a certain high school is 140 pounds and the standard deviation…

A: Assuming that the weights are normally distributed.

Q: the heights of 200 plants in a garden follow a normal distribution with mean of 72.3 cm with a…

A: Formula : Z =(X - μ)/σ

Q: A biologist found the wing span of a group of MONARY butterflies to be normally distributed with a…

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Q: Suppose the measurement of 800 items are normally distributed with mean 66 cm and standard deviation…

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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.