Attached here is the question and answers? Scores on a standardized test are normally distributed with a mean of 100 and a standard deviation of 12. An individualʹs test score is found to be 125. Find the z-score corresponding to this value. Group of answer choices -0.48 2.08 0.48 -2.08

Q: Manager claims average sales for her shop is $1800 a day during winter months. 10 winter days…

A:

Q: Test scores for a history class had a mean of 77 with a standard deviation of 4.4. Test scores for a…

A: The z-score: The z-score of a random variable, X, with mean μ and standard deviation σ, at the point…

Q: Consider a value to be significantly low if its z score less than or equal to - 2 or consider a…

A:

Q: When a Calculus professor is determining the curve for her final exam, she finds that the mean score…

A: Z= x-μσ~N(0,1)

Q: Arandom sample of 79 eighth grade students scores on a national mathematics assessment test has a…

A: Given: n= 79.0 ,x̄= 272.0 ,σ= 32.0 µ= 270.0 ,significance level(∝)= 0.11

Q: Consider a value to be significantly low if its z score is less than or equal to −2 or consider a…

A:

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

A: as per bartleby guideline expert have to answer first three subpart only dear student please upload…

Q: Arandom sample of 90 eighth grade students' scores on a national mathematics assessment test has a…

A: From the provided information, Sample mean (x̅) = 276 Sample size (n) = 90 Population standard…

Q: Researchers collected information on the body parts of a new species of frog. The thumb length for…

A: Provided information ;  mean(μ) = 8.04 mm standard deviation(σ) = 0.54 mm x denotes thumb length for…

Q: Consider a value to be significantly low if its z score less than or equal to - 2 or consider a…

A: It is given that the mean test score is 21.5 with standard deviation of 5.1. It is given that the…

Q: IQ scores after the AlS students Division of Bohol are normally distributed with a mean of 110 and a…

A: Let 'X' be the random variable representing the IQ scores. X~N110, 10

Q: Scores on a university exam are Normally distributed with a mean of 78 and a standard deviation of…

A:

Q: ou will need ONE of the z score formulas for this question. Assume that incomes of public…

A: Solution: Let X be the incomes of public administrators are normally distributed with a mean μ=…

Q: Q scores for students at a prestigious university are normally distributed with a mean of 110 and a…

A: Solution: Let X be the IQ scores for students at a prestigious university are normally distributed…

Q: Consider a value to be significantly low if its z score less than or equal to - 2 or consider a…

A: Given information Mean µ = 19.1 Standard deviation σ = 4.7 Test score are significantly low if Value…

Q: Scores on the Wechsler Adult Intelligence Scale (a standard IQ test) are approximately normally…

A: Solution: Given information:  Let X represent the Wechsler score for the age group 20-34 X~N(μx=…

Q: The lengths of pregnancies in a small rural village are normally distributed with a mean of 260 days…

A: Solution: 6. Let X be the length of pregnancies in a small rural village. From the given…

Q: The table lists means and standard deviations. The mean is the number before the plus/minus, and the…

A: Chebyshev’s theorem is used to determine the amount of values of the variables which are expected to…

Q: Consider a value to be significantly low if its z score less than or equal to - 2 or consider a…

A:

Q: Mark is provided a score of X = 57 that corresponds with a z-score of z = 1.60 to describe his…

A: Formula for z-score: z=X-μσ Given that  X=57z=1.60σ=10

Q: Ise z scores to compare the given values. Based on sample data, newborn males have weights with a…

A: The z score formula: For a male the z score can be calculated as:

Q: A random sample of 89 eighth grade​ students' scores on a national mathematics assessment test has a…

A: Given information- Population mean, μ = 285 Population standard deviation, σ = 35 Sample size, n =…

Q: Age of Senators The average age of senators in the108th Congress was 59  years. If the standard…

A:

Q: You are testing the claim that the mean GPA of night students is different than the mean GPA of day…

A: According to the given information in this question We need to find the value of test statistic

Q: Heights of adult American women are normally distributed with a mean of 65 inches and a standard…

A:

Q: Raw scores on standardized tests are often transformed for easier comparison. A test of Math ability…

A:

Q: The lengths of pregnancies in a small rural village are normally distributed with a mean of 264 days…

A: 95% Area = (μ-Zα/2σ , μ+Zα/2σ)

Q: The combined SAT scores for the students at a local high school are normally distributed with a mean…

A: Let "X" be the combined SAT scores for the students at a local high school

Q: The scores on two standardized tests are normally distributed. The first test had a mean of 54 and a…

A: It is given that the mean and the standard deviation of the first test are 54 and 10, respectively.

Q: Find the indicated IQ score. The graph depicts IQ scores of adults, and those scores are normally…

A: Given that  Mean = M = 100 Standard deviation = SD = 15 P( X < a ) = 0.65

Q: Consider a value to be significantly low if its z score less than or equal to - 2 or consider a…

A: A test score is considered to be significantly low if it is two standard deviations below the mean…

Q: Scores on an exam are normally distributed with a mean of 65 and a standard deviation of 9. Find the…

A: Given X is normal Distributed with mean µ = 65.0 and standard deviation σ = 9.0 now will using…

Q: Consider a value to be significantly low if its z score less than or equal to -2 or consider a value…

A:

Q: Pumpkins from a local farmer have a mean weight of 16 pounds with a standard deviation of 2.5…

A: Given information: It is given that, Pumpkins from a local farmer have a mean weight of µ = 16…

Q: The lengths of pregnancies in a small rural village are normally distributed with a mean of 267 days…

A: μ = 267σ = 13 C = 95% α = 1 - 0.95    = 0.05 α2 = 0.025  zα2 = ±1.96 The middle 95% of most…

Q: The lengths of pregnancies in a small rural village are normally distributed with a mean of 264 days…

A:

Q: he lengths of pregnancies in a small rural village are normally distributed with a mean of 265 days…

A:

Q: Consider a value to be significantly low if its z score less than or equal to -2 or consider a value…

A:

Q: Isabella's points per game of bowling are normally distributed with a standard deviation of 8…

A: Answer is explained below-

Q: A researcher wishes to test the claim that the average cost of tuition and fees at a four year…

A:

Q: A test is used to assess readiness for college. In a recent​ year, the mean test score was 19.2 and…

A: Given data: Mean test score, μ=19.2. Standard deviation, σ=4.5. A value is considered to be…

Q: A standardized exam's scores are normally distributed. In a recent year, the mean test score was…

A: Given that.   X~N( μ , ?^2 )   μ=1466     , ?=315   Z-score =( x - μ )/?

Q: The lengths of pregnancies in a small rural village are normally distributed with a mean of 265 days…

A:

Q: The amount of annual snowfall in a certain mountain range is normally distributed with a mean of 75…

A:

Q: 6. A student scores 56 on a geography test and 285 on a mathematics test. The geography test has a…

A: For Geography  :   ,

Q: You are testing the claim that the mean GPA of night students is less than the mean GPA of day…

A:

Q: Consider a value to be significantly low if its z score less than or equal to - 2 or consider a…

A: From the provided information, Mean (µ) = 19.7 Standard deviation (σ) = 5.1 X~N (19.7, 5.1) Here X…

Q: Consider a value to be significantly low if its z score less than or equal to - 2 or consider a…

A: All those scores which are less than 2 standard deviations below the mean are considered as the…

Q: Identify the test scores that are significantly low or significantly high.

A: Here Given , A test is used to assess readiness for college. In a recent​ year, the mean test score…

Q: A population of N = 5 scores has a mean of µ = 20 and a standard deviation of σ = 4. Which of the…

A: Given N=5 Mean=20 Standard deviations=4