Illustrate the probability histogram of the sampling distribution ofthe means. There are total of 150 track and field athletes at the oval who can finish the 1 lap with anaverage time of 15 minutes, with a standard deviation of 6 minutes. If 56 athletes are chosen at arandom, wh

Q: One prominent physician claims that 80% of those with lung cancer are chain smokers. Compute the…

A: Here, we can consider that it is Binomial distribution because  80% of people has lung cancer and…

Q: STATISTICS 1 100 1 1 Played Win % Current Маx Streak Streak GUESS DISTRIBUTION 1 0 2 0 3 0 4 1 5 0 6…

A:

Q: You are to write down on a piece of paper the number of credits you are taking this semester. Your…

A: Give the general format for solving this problem as below. Summarize the recorded date of number of…

Q: Suppose the mean height in inches of all 9th grade students at one high school is estimated. The…

A: Given that  Sample size n =9 Population standard deviation =3

Q: The National Health and Nutrition Examination Survey (NHANES) reported that in a recent year, the…

A:

Q: The standard deviation of the scores on a skill evaluation test is 354 points with a mean of 1458…

A: Given that  Mean = 1458 , Standard deviation = 354 , Sample size = 313

Q: Suppose that the distribution of touchdowns (in football) is normally distributed with a mean of 250…

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

Q: Would it be unusual for a data value to be more extreme than 4.76 standard deviations from the mean?…

A: In a normal distribution, data values that lie more than 4.76 standard deviations from the mean are…

Q: Scores for a standardized test are normally distributed with a mean of 1200 and a standard…

A: given data μ = 1200σ = 60 normal distributionn = 64P(1200<x¯<1214) = ?

Q: The amount a household spends on groceries per week is normally distributed with a mean of $250 and…

A: given data, normal distributionμ=250σ=45n=121probability the sample mean spent on groceries per week…

Q: statistics professor reported that the mean score in a recent quiz is 72 and the standard deviation…

A: Solution

Q: A history class has 95 members. If there is a 22% absentee rate per class meeting , find the mean…

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Q: M. ..... Could the graph represent a normal curve? Select all that apply. A. No, because the graph…

A: A graph is given and give the correct answer according to this graph.  Here we use the normal curve…

Q: A gym class is taking a fitness test. The gym teacher is recording how many sit-ups the participants…

A:

Q: Suppose the mean height in inches of all 9th grade students at one high school is estimated.

A: Population standard deviation, σ =3 inches Sample size n=6

Q: Determine the number of standard deviations from the mean (z-score). In the United States, the…

A: Given mean female height = 64 inches and standard devaiton = 3 inches.The distance of a data point…

Q: The average score of all golfers for a particular course has a mean of 76 and a standard deviation…

A: We have given information with the usual notation, Let X denote the score of golfers for a…

Q: The scores on a test are normally distributed with an average (mean) of 72 and a standard  deviation…

A: As per our guidelines we are suppose to answer only three sub parts . Mean(μ)=72Standard…

Q: The average score of this quiz is 24 points with a standard deviation of 1.5 points. What is the…

A: Let us assume that X=score of a quizX follows a normal distribution with mean=24 and standard…

Q: The mean of a test is 400 and the standard deviation is 75. It is normally distributed. A sample of…

A: 1] Mean μ=400 2] standard deviation σ=75 3] n=25 4] μx¯=400σx¯=σn=7525=15

Q: at you wanted to figure out your average winnings during a trip to Las Vegas. You know that the…

A: We use z-interval or confidence interval by using the z -distribution if the value of population…

Q: students has an average of 300 dollars and a standard deviation of 1,000. Suppose that we take a…

A: It is given that the random variable X i.e, the amount of money in savings accounts follow normal…

Q: When Lauren runs the 400 meter dash, her finishing times are normally distributed with a mean of 88…

A:

Q: The IQ score that separates the bottom 15% from the top 85% is P,5 =. (Round to the nearest…

A:

Q: The National Health and Nutrition Examination Survey (NHANES) reported that in a recent year, the…

A: Solution: Let X be the cholesterol level. From the given information, µ=202 and σ=42.

Q: When Christian runs the 400 meter dash, his finishing times are normally distributed with a mean of…

A:

Q: A doctor is researching the effects of "too much text messaging" on a group of teenagers. He has…

A: It is given that the mean is 312 and standard deviation is 125.

Q: Refer to the accompanying table, which describes results from groups of 8 births from 8 different…

A: xP(x)00.00310.02620.11830.21240.27450.22760.10870.02780.005

Q: A large chemistry course took their final exam. The mean was 75 with a standard deviation of 8. What…

A: Given Information:  Mean (u) = 75  Standard Deviation (s) = 8  To find: Exam scores that separates…

Q: amount of money an American spends on Holiday presents is normally distributed with a mean of $650…

A: given data, normal distributionμ=$650σ=$80probability that a randomly selected American spends less…

Q: he accompanying​ table, which describes the number of adults in groups of five who reported…

A: x p(x) xp(x) (x-xbar)^2 p(X)*(x-xbar)^2 0 0.192 0 2.027776 0.389333 1 0.367 0.367 0.179776…

Q: A soft drink machine outputs a mean of 26 ounces per cup. The machine's output is normally…

A: From the provided information,

Q: A mandatory competency test for high school sophomores has a normal distribution with a mean of 470…

A:

Q: The amount of money an American spends on Holiday presents is normally distributed with a mean of…

A: Given Mean=650 Standard deviations=80

Q: The mean is μ = girl(s). (Round to one decimal place as needed.) The standard deviation is o =…

A: Number of girls xP(x)00.00310.03220.11430.22740.26650.21460.11270.02980.003

Q: The lengths of pregnancies are normally distributed with a mean of 270 days and a standard deviation…

A: We have given that.  Mean = 270 , Standard deviation = 15 , We need , Part (a): p(x greater than…

Q: The standard deviation of the scores on a skill evaluation test is 290 points with a mean of 1286…

A: We have to find given Probability.

Q: The ACT math scores of a particular high school in New Jersey are approximately normally…

A: Given data, σ=100P(200<X<800)=0.997By using emperical formula99.7% of data lies within μ-3σ…

Q: Brenda has collected data to find that the finishing times for cyclists in a race has a normal…

A: Given the finishing time for cyclists in a race has normal distribution with mean 143 minutes and…

Q: The average person uses 130 gallons of water daily. If the standard deviation is 35 gallons , find…

A: Given that, Mean = 130 Standard deviation = 35 Sample size = 25

Q: On the SAT, the average Writing score is 490 points and the average Math score is 547 points. The…

A: From the provided information, Average Math score (µ) = 547 points Standard deviation (σ) = 89…

Q: Pearson publishes textbooks each semester and the mean number of textbook pages published by Pearson…

A: Given data,μ=568σ=150P(X>733)=?