The Sky Train from the terminal to the rental car and long-term parking center is supposed to arrive every 6 minutes. The waiting times for the train are known to follow a uniform distribution. Find the 60th percentile for the waiting times (in minutes).  min

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A: Obtain the time that represents the 70th percentile of this distribution. The time that represents…

Q: The median has a sampling distribution. Explain why or why not?

A:

Q: For any distribution what is the score that separates the highest 10% from the rest called?

A:

Q: 2. Find the 90" percentile using interpolation.

A: The 90th percentile group can be calculated as: mN100=90100×70        =63

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A: Let X denote the average number of Facebook friends users. Given that X ~ N(mean=122, SD=43) Let Q3…

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A: It is an important part of statistics. It is widely used.

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A:

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A:

Q: describe the sampling distribution of the sample means in the histogram

A: A histogram of sample mean is given.

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A: Given Information: The height of women ages​ 20-29 is normally​ distributed, with a mean of μ=63.6…

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A: The formula for combination is nCr = n! / [r! (n – r)!] = [n (n – 1) … (n – r + 1)]/r!. Explanation:…

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A:

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A:

Q: The average number of cavities that thirty-year-old Americans have had in their lifetimes is 9.  Do…

A: Given data: 8,5,5,6,5,11,9,7,10,6,9,7,6,6,11,10 Sample Mean, x̄ = Σx/n = 121/16 = 7.5625 Variance,…

Q: On the SAT exam, a total of 25 minutes is allotted for students to answer 20 math questions without…

A: Test is that whether the true mean amount of time needed for all students of this school to complete…

Q: Select the z-score that is represented by the shaded region of the distribution.

A: The z-score that is represented by the shaded region of the distribution is -0.75. That is,

Q: Before the furniture store began its ad campaign, it averaged 235 customers per day. The manager is…

A:

Q: The height of women ages​ 20-29 is normally​ distributed, with a mean of 64.8 inches. Assume σ=2.7…

A: Given Data Population Mean,μ = 64.8 Population Standard Deviation,σ = 2.7

Q: The average number of cavities that thirty-year-old Americans have had in their lifetimes is 4.  Do…

A: Given data, 4, 3, 6, 6, 4, 3, 3, 3, 4, 5, 4, 4, 6, 3, 3 Sample mean: Sample mean for the given data…

Q: What is the sampling distribution in estimating the variance of a population? What are the…

A: The estimation population variance of the sampling distribution, or

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A:

Q: What are the three important characteristics of the sampling distribution of the mean?

A: Concept of sampling distribution of sample mean: Let a particular characteristic of a population is…

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A: Your calculations are correct. There is no correction needed. For sample sd always divide the square…

Q: Calculate the mean of the distribution. In

A: Here AS PER POLICY I HAVE CALCULATED FIRST MAIN QUESTION  Here given discrete probability…

Q: Estimate the mean of the distribution.

A: From the given histogram, we are considering the approximate frequency values: Class interval…

Q: Describe about the All Possible Random Samples.

A: The random samples can be selected in the following methods: Simple random sampling: If a sample of…

Q: The height of women ages​ 20-29 is normally​ distributed, with a mean of 63.6 inches. Assume σ=2.6…

A:

Q: An amusement park keeps track of the percentage of individuals with season passes according to age…

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Q: z-score that is greater

A: we can assume it to be standard normal distribution with mean = 0 standard deviation = 1

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A: Hello! As you have posted more than 3 sub parts, we are answering the first 3 sub-parts.  In case…

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A:

Q: Draw a uniform distribution graph of eating a random amount of a 7-ounce jar of salsa.

A: uniform distribution:

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A: In question,  Given that a pair of dice is rolled 36 times. Then we'll find mean Variance and…

Q: What does the sampling distribution of the mean allows determining?

A: Concept of sampling distribution of sample mean: Let a particular characteristic of a population is…

Q: Can you show me a step explanation on how to find the standard deviation for a sample proportion…

A: As per central limit theorem the formula for standard deviation for a sample proportion is,

Q: What is the z-score of the 31st percentile?

A: The z-score for the 31st percentile is the value such that 31% of the area under the standard normal…

Q: The average number of cavities that thirty-year-old Americans have had in their lifetimes is 8.  Do…

A: α = 0.01 level of significance n = 15

Q: Is this a binomial distribution? Explain.

A: Here use basic rule of binomial

Q: Sixty-three percent of U.S. households have a personal computer. In a random sample of 400…

A:

Q: An amusement park keeps track of the percentage of individuals with season passes according to age…

A: Given: n=200 Hypothesis: H0:p(child)=0.23,p(teen)=0.45,p(adult)=0.20,p(senior)=0.12. H0: The…

Q: A rowing team consists of five rowers who weigh 152, 159, 162, 150 and 156 pounds. Find all possible…

A: Given: Weights of five rowers- 152,159,162,150,156 Sample size, n=3

Q: Before the furniture store began its ad campaign, it averaged 186 customers per day. The manager is…

A: For this study we should use t-test for population mean The hypothesis to be tested here is given…

Q: Make your own example of mean and variance of a sampling distribution. Also, construct the sampling…

A: Given that We have to Make own example of mean and variance of a sampling distribution. Also,…

Q: The average number of cavities that thirty-year-old Americans have had in their lifetimes is 5. Do…

A: Given data is3,4,4,4,5,5,6,4,5,4,3,5,6,5,3from given data n=15x=4.4s=0.9856α=0.05

Q: Before the furniture store began its ad campaign, it averaged 200 customers per day. The manager is…

A:

Q: Describe the shape of both sampling distribution.

A: Given graphs:

Q: The average number of cavities that thirty-year-old Americans have had in their lifetimes is 8.  Do…

A: Given  : Claim  : twenty-year-olds have a different number of cavities

Q: what happens to the mean as the sample size increases?

A: It is given that the sample size is increasing.