An engineer wishes to determine the width of a particular electronic component. If she knows that the standard deviation is 3.5 mm, how many of these components should she consider to be 99% sure of knowing the mean will be within ±0.1±0.1 mm? 35 8128 6630 91 99565

Q: The distribution of the lengths of a commercially caught fish is bell-shaped with mean 24 cm and…

A: the PDF of normal distribution is = 1/σ * √2π * e ^ -(x-u)^2/ 2σ^2standard normal distribution is a…

Q: Give the range Give the standard deviation

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Q: the data set has size 50. Approximately how many observations lie within three standard deviation to…

A: Empirical rule (68-95-99.7 rule): Approximately 68% of data lies within the first standard…

Q: A population has a mean u=87 and a standard deviation o = 12. Find the mean and standard deviation…

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Q: Identify the symbols used for each of the following: (a) sample standard deviation; (b) population…

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Q: The size of the sampling error is Select one: a.Inversely related to the sample size, i.e., the…

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Q: Sixty-one students were asked at random how much they spent for classroom textbooks this semester.…

A: Given:Margin of error(E)=7Standard deviation(s)=28.70

Q: The ages (in years) of a random sample of shoppers at a gaming store are shown. Determine the range,…

A: Given data:- 12,17,23,14,13,18,21,16,14,19Range=maximum-minimum=23-12=11Mean =…

Q: A population has a bell-shaped distribution with a mean of 90 and a standard deviation of 8. Which…

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Q: Suppose that the average reading speed of students completing a speed-reading course is 500 words…

A: Let X be the random variable from normal distribution with mean (μ) = 500 and standard deviation…

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Q: Given population parameters for two populations, population 1 has a mean of 500 and a standard…

A: The coefficient of variation of Population 1 :  8%     The coefficient of variation of Population 2…

Q: 1.Find the mean and standard deviation for the data

A: Given: No. of batteries, n=10 Time (x) 397 355 415 395 352 436 327 417 276…

Q: Making sure that the scales used by businesses in the United States are accurate is the…

A: Population mean (µ) = 1000Standard deviations (σ) = 2Sample size (n) = 47Sample mean (x̅) =…

Q: How large a sample is needed to estimate the population mean for the amount of money a person spends…

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Q: Calculate the sample standard deviation for this data set: 65, 48, 70. The formula for the sample…

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Q: ample of 12 measurements has a mean of 20 and a standard deviation of 2. Suppose that the sample is…

A: We have given that  A sample 12 has mean = 20 And standard deviation = 2

Q: A variable x has a mean, p, of 30 and a standard deviation, o, of 5. What is the standardized…

A: From the given information,   Mean = 30 Standard deviation = 5   The objective is to find the…

Q: A population has mean 35 and standard deviationa-19. Find and o- for samples of sze 100. Round your…

A: Introduction: Denote X as a randomly selected observation from the population of interest. It is…

Q: Dr. Hill, a physical therapist, compared the average length of office visits for his male and female…

A: Here, mean1 is 5.9 and mean2 is 6.3. Standard deviations are 2.2 and 1.7. Sample numbers are 7 for…

Q: A quantity surveyor was asked to study the weight of beef in a particular company. He measured 10…

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Q: These temperatures were recorded in Pasadena, California for three weeks last April 87 85 80 78 83…

A: b Median: Number of observations: 21. That is, the number of observations is odd. Therefore, the…

Q: Two machines, X and Y, produce earbuds. Let X represent the diameter of an earbud produced by…

A: Mean is the average of all the observations. It is calculated by dividing the number of observations…

Q: The number of milliseconds required for a light beam to go from A to B is given below. Find the…

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Q: Use the following information to answer questions 13 - 15. The following frequency distribution…

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Q: Suppose that resting pulse rates among healthy adults are normally distributed with a mean of 75…

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Q: Given population parameters for two populations, population 1 has a mean of 800 and a standard…

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Q: A population has a mean p = 81 and a standard deviation o = 25. Find the mean and standard deviation…

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A: Given data : sample size, n = 52 sample mean, x̄ = 2.13 sample standard…

Q: Sketch the following means and standard deviations and find the RS, 1. µ = 2.1 and o = 1.3 2. µ =…

A: Hi! Thank you for the question, As per the honor code, we are allowed to answer three sub-parts at a…

Q: Use the following information to answer Question 7 and Question 8. The marks of six students in a…

A: Since there are two 3 different questions, as per Bartleby rules I did 1st one. Please re post the…

Q: Find the standard deviation for the given data n- 48, Σίx, = 1620 , Σix? = 6640ο , ΣΧ-180 %3D O a.…

A: Given that, n = 48∑fixi=1620∑fixi2=66400∑xi=180

Q: The Shake Out Earthquake Scenario is based on a magnitude 7.8 earthquake and serve as the basis for…

A: Given that the magnitude is 7.8 Mean is μ=2.5723 standard deviation, σ=0.6505

Q: If the standard deviation of the data .S={5,20,a} is 15. Find the value of a

A: Given: SD=15.   Also, by the formula of standard deviation:SD=∑x-x2n-1

Q: A variable is normally distributed with mean 17 and standard deviation 9. Use your graphing…

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Q: The average annual precipitation in Vancouver, British Columbia is 1300 mm. Assuming that the…

A: The value of  μ=1300μ+σ=1530,   μ+σ=1070μ+2σ=1760, μ+2σ=840μ+3σ=1990, μ+3σ=610 a)  Annual…

Q: II. Given the measurements 20, 26, 40, 39, 36, 25, and 34. Compute for standard deviations. ( show…

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Q: A population has a mean u=6.9 and standard deviation o=2.6. a) Find the value that has 90% of the…

A: Given X is normal Distributed with mean µ = 6.9 and standard deviation σ = 2.6 now will use standard…

Q: Out of a sample of 100 juice bottles, 95 bottles contain between 1,476 and 1,524 mililiters of…

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Q: Suppose baby kittens' weights have a mean of 11.6 and a standard deviation of 1.5. The z-score tells…

A: Ans#- Given,          Mean μ = 11.6  and Standard deviation σ = 1.5         Use formula  z = x - μσ…

Q: Consider the following frequency table. Value Frequency 1.50 1 2.00 8 2.50 7 3.00 4 Calculate the…

A: The standard deviation is 0.42 when rounded to 2 decimal places.Explanation:To calculate the…

Q: a) What is the mean speed now? What is the new standard deviation? The new mean would be mph. The…

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Q: We know that IQ scores are normally distributed with a mean of 100 and a standard deviation of 15.…

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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.