A population has mean 52 and standard deviation 8. What is the data value that has a z-score of -3 ? Write only a number as your answer. Your Answer:

Q: er has a height of 6 feet 8 inches, or 203 cm. Based on statistics from a data set, his e of 4.10.…

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Q: n a final examination in mathematics, the mean was 72 and the standard deviation was 15. Determine…

A: Given : On the final examination in Mathematics ; Mean (μ) = 72 Standard deviation (σ) = 15 Let X be…

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

A: A z score tells us where score is lies on normal distribution curve. if z score is is zero is it…

Q: The mean of a data set is 20 and the standard deviation is 2. What percentage of data value will…

A: Given  Mean=20, sigma=2 P(12<X<28)= ?

Q: A population has mean 49 and standard deviation 5. What is the data value that has a z-score of 2?…

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Q: The variance and mean for a given set of data is 25 and 64 respectively. Calculate the standard…

A: We have given that,  Variance (s^2) = 25 Mean (x-bar) = 64 Then, We will find the standard…

Q: Yearling Angus steers had a mean weight of 1152 pounds with a standard deviation of 84 pounds.…

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Q: = 6 , Σ ? = 33, Σ ?2 = 199.

A: given n = 6 ∑x = 33 ∑x2 = 199

Q: A) What percent of car sales amounts are between $11,700 and $18,900? B) 99.7% of all people paid…

A: For a normal distribution with mean μ and standard deviation σ, we have: P(x<=a) =…

Q: If a set of data has a mean of 50 and a standard deviation of 4.5, what is the z-score for a value…

A: If a set of data has a mean of 50 and the standard deviation of 4.5. We have to find the z-score for…

Q: What would be the effect on the standard deviation of the set of scores 13, 14,15, 15, 16, and 17 if…

A: We have to find effect of membres on standard deviation.

Q: A manufacturing company that produces light bulb found out that the mean life span of the bulb is…

A: Answer: Option a. 99.91%.   Explanation: A manufacturing company that produces light bulb found that…

Q: A Population has a Mean of 90 and a standard deviation of 25.  A sample of 20 college students is…

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Q: Find the mean and standard deviation of the numbers below.  3 7 5 4 5 6 7 8 6 5

A: First of all, let's arrange the data in a particular order(ascending) for further calculation. i.e…

Q: What percentile would you be in if your height is: a) O standard deviations from the mean? b) -1.645…

A: Percentile corresponding to a z score is the area to the left of the z score. Consider μ as the mean…

Q: Discussion: Students will measure the height of their 5 friends in inches and calculate the mean and…

A: The student will measure the height of n=5 friends. The sample size is n=5. Need to compute: The…

Q: What is the mode of the data?  d. What is the standard deviation of the data?

A: Given Frequency table, Class Interval Frequency Relative Frequency 1 to 5 3 3 6 to 10 4 7…

Q: If a product has a mean demand of 80 with a standard deviation of 10, if the customer holds 100…

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Q: Given the data: 47, 55, 57, 63, 73. Find the standard deviation. Round the final answer to the…

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Q: __ is a measure of speed and describes the difference between the mean and random variable?   a.…

A: In this case, one needs to fill the suitable answer.

Q: On a test the mean score is 25 and the standard deviation is 2.3.  Which score could be expected to…

A: Mean =25 s = 2.3 z-critical value at alpha 0.05 is 1.65

Q: Given a set of scores below, write down the scores one, two, and three standard deviations above the…

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Q: Which of these symbols represents population standard deviation? Obo? Ocs Od. s?

A: “Since you have asked multiple question, we will solve the first question for you. If you want any…

Q: If the coefficient of variation for a data is given as 35%, and the standard deviation for the same…

A: given data coefficient of variation = 35% so cv = 0.35 sd = 32 mean  = ?

Q: You plan to purchase a townhome and the average price of homes in the neighborhood you are looking…

A: It is given that the average price of homes in the neighbourhood is $400,000 and standard deviation…

Q: The average life of a car tire is 50,000 miles.  The standard deviation is 2,000 miles   What…

A: Normal distribution, also known as the Gaussian distribution, is a probability distribution that is…

Q: In a particular examination, the mean score is 82 and the standard deviation is 3.7. What is the Z-…

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Q: If a distribution has a mean of 35 and a standard deviation of 5, what value would be +1.5 standard…

A: Given that The value of mean of 35, Standard distribution of 5 and that correspond s to a z-score of…

Q: In a Science test, the mean is 46 and the standard deviation is 4. Assuming the scores are normally…

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Q: What is the value for a score that has a z= +1.5 from population with a mean of μ=30 and a standard…

A: Z score = +1.5 Mean = 30 Standard deviation = 6

Q: What symbol is used for the standard deviation of a population? O a. X-bar O b.H O C. S O d. o

A: Standard deviation: The positive square root of the mean square of the deviations taken from the…

Q: If the students make one more measurement using the same equipment and procedures, what is the…

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Q: 2. What percent of values of a normally distributed variable lie between the mean and two standard…

A: Given: Let X be the random variable X~ Normal ( μ, σ2)

Q: :When a distribution is bell-shaped, approximately what percentage of data values Will Fall within 3…

A: We have to find correct answer.

Q: A population has a Mean of 100 and a standard deviation of 15.  A sample of 20 college students is…

A: Given information- Population mean, µ = 100 Sample mean, x-bar = 125 Population standard deviation,…

Q: (d) If the mean score was u = 157 with standard deviation o = 19, what was the final exam score for…

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Q: Determine the class average if the standard deviation was 8% and Henry’s mark of 85% is equivalent…

A: Given that,  The standard deviation =8%, Marks of Henry's =85%, and z-score =1.30.

Q: The marks of six students in a science test are represented by the variable x. The following data…

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Q: What is the minimum percentage of data values that will come within 3.5 standard deviations from the…

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Q: The state and will spend 15 hours average a week and class and the standard deviation is 2 hours…

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Q: If some data is symmetrical and unimodal, and the mean and standard deviation are 230 and 40…

A: If the data is symmetrical and unimodal, then it is normally distributed with mean, μ=230 and…

Q: How many of the sample of families would fall above 2 standard deviations from the mean? A. 0 B. 1…

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Q: "The weights of 1,000 children, in average, is 45kg with standard deviation of 18kg. Suppose the…

A: Given : No. of children (N) = 1000 The weights of children are  normally distributed with mean 45kg…

Q: On a standardized test, Sara had a score of 93, which was exactly 2 standard deviations above the…

A: The normal distribution in the center is generally denser and basically less dense at tails. There…

Q: This list of test scores has a mean of 50. Estimate whether the standard deviation is closest to 0,…

A: To find the standard deviation, we use the following formula: where,  σ = Population standard…

Q: What is the value of the Pearson coefficient of skewness for a distribution with a mean of 27,…

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Q: Jse the range rule of thumb to identify the values that are significantly low, the values that are…

A: Solution: Given that: Mean = 19.5 Standard deviation = 4.8

Q: A standardized test has a mean of 88 and a standard deviation of 12. What is the score at the 90th…

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Q: Find the mean and standard deviation for the individualized instruction scores. Scores…

A: From the given information, Consider, X =Scores and Y = Individualized Instruction x f 50-59 2…

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

A:

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.