For a mean of 70 and a standard deviation of 8, find standardized score for a value of 80. O - 1.25 1.24 1.25 O - 1.24
Q: According to the Empirical Rule, what percentage of the observations in a data set that can be…
A:
Q: The average travel time to work for a person living and working in Kokomo, Indiana is 17 minutes. I…
A:
Q: The heights of women have a symmetric distribution with a mean of 64 inches and a standard deviation…
A:
Q: Multiplying every score is a sample by a constant value will change the value of the standard…
A: Standard deviation is a measure of the amount of dispersion of a set of values. It is obtained by…
Q: The height of an adult male is known to be normally distributed with of mean of 69 inches and a…
A:
Q: A sample was done, collecting the data below. Calculate the standard deviation, to one decimal…
A: The value of sample mean is,
Q: deviation 3.2 inches, answer the following questions. (Hint: Use the figure below with mean ? and…
A: The normal distribution is a continuous distribution that has many real-life applications. A normal…
Q: Assuming that the heights of college women are normally distributed with mean 64 inches and standard…
A: Given: μ=64 inchesσ=1.8 inches We have to find 1. what percentage of women lies between 62.2 inches…
Q: A manufacturer claims that a new snowmaking machine can save money for ski resort owners. He states…
A:
Q: Q2: b) For a mean of 70 and a standard deviation of 8, find standardized score for a value of 80.…
A: Givenmean(μ)=70standard deviation(σ)=8x=80
Q: Given the following frequency distribution, determine the standard deviation. Scores Frequency 51-60…
A:
Q: Given the figure above is a normal curve, with a mean score of 100 and a standard deviation of 15, a…
A: Given that ; Mean (μ) = 100 ? = 15 The given curve follows standard normal distribution by using…
Q: use the following information for the question. The average travel time to work for a person living…
A: Let X denote the distribution of travel time and it follows normal distribution with mean of μ=17…
Q: In a recent study, the serum cholesterol levels in men were found to be normally distributed with a…
A:
Q: In designing a work desk, it is found that males have sitting knee heights with a mean of 21.2 in,…
A: From the provided information, Mean (µ) = 21.1 Standard deviation (σ) = 2.2
Q: A sample was done, collecting the data below. Calculate the standard deviation, to one decimal…
A:
Q: A normal distribution has a mean of 82 and a standard deviation of 3. Find the z-score for a data…
A: If x=82 z=?
Q: A grocery supplier believes that in a dozen eggs, the mean number of broken eggs is 0.5 with a…
A: Given : For a dozen of eggs : E(X) = 0.5 SD(X) = 0.4
Q: As of 2020, 83 pitchers have been inducted into the Major League Baseball Hall of Fame. The…
A: Let X be the number of winning games played. Here, X~N( 250, 832) X~N(250,832)⇒Z=X-25083~N(0,1) a.)…
Q: A sample was done, collecting the data below. Calculate the standard deviation, to one decimal…
A:
Q: Assuming that the heights of college women are normally distributed with mean 69 inches and standard…
A: Since you have posted multiple sub-parts of question , we will solve first 3 sub-parts of question…
Q: Assuming that the heights of college women are normally distributed with mean 61 inches and standard…
A: Since, you have you have posted a question with multiple subparts we will solve first three subparts…
Q: A sports shop records the sales of items made in India and those made in Australia. Country of…
A: The standard deviation is the measure of variability from individual data values to the mean and…
Q: Based on the graph of this normal distribution. a) The mean is _____ . b) The standard deviation…
A:
Q: The heights of women have a symmetric distribution with a mean of 63 inches and a standard deviation…
A: It is given that the heights of women follows a normal distribution with a mean 63 inches and a…
Q: An accountant is studying the attendance levels at the concerts of a touring rock band. She finds…
A: Let x¯ be the mean number of attendees at a performance in her study for 62 performances which…
Q: On a standardized exam, the scores are normally distributed with a mean of 650 and a standard…
A:
Q: The heights of students at a college are normally distributed with a mean of 175 cm and a standard…
A:
Q: A pharmacologist measured the concentration of dopamine in the brains of several rats.The mean…
A: Mean = 1269 Standard deviation = 145
Q: The scores of students on an exam are normally distributed with a mean of 335 and a standard…
A: We have to find quartiles.
Q: A nationwide survey showed that the average selling price for bookbags is $35 with a standard…
A:
Q: An upscale women's clothing boutique in Laguna Beach, on average, has daily sales of $28,176.44. The…
A:
Q: 4. Compute the average deviation on the data below Test scores X-Х bar Xi 57 60 65 70 78 s0 82 85…
A: 4. Formula for Average deviation is, Average deviation=∑x'n Where x'=x-x¯ x¯=∑xin , n=10…
Q: the number of cookies in a shipment of bags are normally distributed with a mean of 64 and a…
A: Given that. X~N( μ , ?^2 ) μ=64 , ?=4 Z-score =( x - μ )/?
Q: For a population with mean of 50 and standard deviation of 8, what is the raw score that corresponds…
A: We have given that mean = μ = 50standard deviation = σ = 8 z = 0.25
Q: A sample was done, collecting the data below. Calculate the standard deviation, to one decimal…
A: Solution: The given data is
Q: A sample was done, collecting the data below. Calculate the standard deviation, to one decimal…
A: The formula of the standard deviation is,
Q: Assume that the distribution of a college entrance exam is normal with a mean of 500 and a standard…
A: Consider the equation
Q: If a data value has a z-score of 3.00 and the mean of the distribution is 100 with a standard…
A: 1) Given data, z=3 μ=100 σ=15 X=?
Q: What percentage of a population typically lands within two standard deviations of the mean under a…
A:
Q: Assuming that the heights of college women are normally distributed with mean 65 inches and standard…
A: Given : the heights of college women are normally distributed with mean 65 inches and standard…
Q: The time spent by a teacher at work during spring holidays is normally distributed with a mean of 20…
A: Given that. X~N( μ , ?^2 ) μ=20 , ?=5 Z-score =( x - μ )/?
Q: Find the following z scores with a mean of 25 and a standard deviation of 4. a. 20 b. 32 c. 28…
A:
Q: Find the standard deviation (rounded to the nearest unit) for the data indicated. Test Score…
A: Solution: x(1) Frequency (f)(2) f⋅x(3)=(2)×(1) f⋅x2=(f⋅x)×(x)(4)=(3)×(1) 50 3 150 7500 60 6…
Q: A sample was done, collecting the data below. Calculate the standard deviation, to one decimal…
A: Explanation and solutions is given below....
Q: Assuming that the heights of college women are normally distributed with mean 61 inches and standard…
A: Disclaimer: Since you have posted a question with multiple sub-parts, we will solve the first three…
Q: Use the range rule of thumb to approximate the standard deviation. 22, 29, 21, 24, 27, 28, 25, 36 O…
A: The given data is listed below. 22, 29, 21, 24, 27, 28, 25, 36. The objective is to find the…
Q: The distribution of the number of dill pickle spears in a gallon container is approximately Normal…
A: Solution
Q: A local store has found the expected number of smooshed donuts per dozen is 0.6, with a standard…
A: Here Take RANDOM variable X = Number of smooshed donuts
Q: The average score on a test of 40 students has a mean score of 53 and a standard deviation of 6. At…
A: Answer - The average score on a test of n = 40 Student has a mean score μ = 53 and σ = 6…
Step by step
Solved in 2 steps with 1 images