O The two distributions have equal means and equal standard deviations. O The two distributions have equal means and different standard deviations. O The two distributions have equal means and standard deviations that differ by 14 units. O The two distributions have equal standard deviations and different means.

Q: (d) The distribution of means has a mean of and a standard deviation of (Type integers or decimals…

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Q: Which of the following statements is true? O Fifty percent of the scores in a distribution are…

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Q: 1. Which of the following statements is correct? The mean of the sampling distribution of the means…

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Q: Which statement below is not consistent with the distribution of sample means.     a. The…

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Q: 3 15 16 17 18 19 Age Distribution B 2 %23 15 16 17 18 19 Age # of Students # of Students 4543 210…

A: Given Information:

Q: set A set B 0 1 2 3 4. 5. 8 9 10 0 1 4 5 6 7 8 9 10 3 Which of the following statements is TRUE…

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Q: 1- Jay is a photographer who estimates that their time shooting for a cooking magazine is uniformly…

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Q: 1. Which of the following is the test statistic to use when the sample data is less than 30? a. t=…

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Q: A normal distribution has a mean of µ = 40 with σ = 10. If a vertical line is drawn through the…

A: From the provided information, Mean (µ) = 40 Standard deviation (σ) = 10 X = 55

Q: A sample of university students has an average GPA of 2.78 with a standard deviation of 0.45. If GPA…

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Q: Which of the following statements are correct when deciding whether to use the z or the t…

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Q: d) Find the standard deviation of the population o. e) Find mean of the sampling distribution of the…

A: Note: Hi, thank you for the question. As per our company guideline we are supposed to answer only 3…

Q: a. The mean of this distribution is b. The standard deviation is c. The probability that wave will…

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Q: 3 Let Y~ N (4; o?1,) with and o = 3. Y'Y (a) What is the distribution of o2 (b) Calculate the mean…

A: In

Q: If X N(49, 16), then the standard deviation of X equals

A: It is given that, X~N49,16. This, means that, the the random variable X follows a normal…

Q: Which of the following statements are true? I. The sampling distribution of a has standard deviation…

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Q: Decide which of the following statements are true.

A: here use basic of normal distribution

Q: C. The mean of this distribution is d. The standard deviation is e. Find the probability that the…

A:

Q: 5. Which of the following statements describe the concepts of empiriica rule? A. It states that the…

A: Empirical rules:1) P(μ-σ<X<μ+σ)≅68%2) P(μ-2σ<X<μ+2σ)≅95%3) P(μ-3σ<X<μ+3σ)≅99.70%

Q: llowing is not a commonly used​ practice? Choose the correct answer below.     A. If the…

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Q: 2.130 Suppose that a variable of a population has a reverse-J-shaped distribution and that two…

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Q: 24. Consider the four distributions shown here. Without calculating anything, which distribution do…

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Q: Consider the following set of three distributions, all of which are drawn to the same scale.…

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Q: A) What is the z-score of x = 3, if it is 1.1 standard deviations to the left of the mean?  B)…

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Q: Which of the following statements is incorrect? The median is the most appropriate measure of…

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Q: Which of the following statements is FALSE. A A normally distributed data has a mean equal to its…

A: According to the given information, we have The statements are given.

Q: f. The Z-scores of four students on an algebra test are given. If the mean of the test was 82 and…

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Q: Which of the following is true for most distributions?  Group of answer choices Around 50% of the…

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Q: 9. A distribution of exam scores has = 90 and  = 10.  In this distribution, Hannah’s   score is 9…

A: Exam scores are distributed with mean(μ) = 90 and standard deviation (σ)=10

Q: Which of the following statements regarding the standard deviation is FALSE? Select one: a. The…

A: Answer : Correct answer option (a)

Q: Which of the following are true statements? I. The distributions have the same mean. II. The…

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Q: d). uniform R[a;b]; e). exponential exp[µ] ; f).

A: 1) Gaussian(normal) distribution:- m=µ  Mean E(x)=∫-∞∞ x*f(x)dx     =∫xσ2π *e-1σ2*(x-µ)2dx    Put…

Q: a normal distribution has a mean of 35 and a standard deviation of 10, then   The median is 25 and…

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Q: Which of the following statements correctly explains what happens to the variability of a…

A: The Student t distribution is generally bell-shaped, but with smaller sample sizes shows increased…

Q: 4. Which of the following statements about measures of variability must always be true if the…

A: Options c and d are correct.

Q: Q2/ (A) Two water samples x and y have given the following statistical results: 50 40 X = 300, 3 y =…

A: note: Hi! Thank you for the question, As per the honor code, we are allowed to answer one question…

Q: Which of the following statements about the relationship between the population standard deviation…

A: If the sample size becomes larger, then the standard error decreases since with greater sample…

Q: Which of the following statements are true? 1. The sampling distribution of æ has standard deviation…

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Q: a. The mean of this distribution is b. The standard deviation is c. The probability that wave will…

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Q: 1. Prove the following statements: a) The standard deviation is zero if all the observations have…

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Q: 2. Suppose you are working with a data set that is normally distributed, with a mean of 200 and a…

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Q: Which of the following statements is correct?  d. The standard deviation of a constant is equal to…

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Q: O The two distributions have equal means and different standard deviatic O The two distributions…

A: Mean indicates the average value of the given observations. It is based on all observations.…

Q: 6. A distribution with a u = 55 and o = 6 is standardized so that the new mean and standard…

A: We have given that.   X~N( μ , ?^2 )   Z-score =( x - μ )/?

Q: Which of the following statements is true with respect to the sampling distribution of a proportion?…

A: The sampling distribution of the proportion is approximately normal with mean p and standard…

Q: The average GPA scored by a class is 4.76, and the standard deviation is 0.64. For a sample of 16…

A: The random variable GPA follows normal distribution. The population mean is 4.76. The population…

Q: 1) If for a normal distribution the mean is 100 and the standard deviations is 15 then find a)…

A: Given that X follows a normal distribution with mean=100 and standard deviation=15a)…