The scores on the Accuplacer test and High School GPAS are normall The Accuplacer test had a mean of 35 and a standard deviation of 9 High School GPAS had a mean of 2.8 and a standard deviation of 0.2. What high school GPA do you need to equal a score of 56 on the Accu Give answer to two decimal placés. Check Answer

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: The mean score on a driving exam for a group of​ driver's education students is 60 ​points, with a…

A: Solution:From the given information, k value is 22, standard deviation of points is 4 and mean…

Q: The mean age of lead actresses from the top grossing movies in 2010 was 29.6 years with a standard…

A: Given that the mean age of lead actress from the top grossing movies in 2010 was 29.6 and had a…

Q: Assume that the readings at freezing on a batch of thermometers are normally distributed with a mean…

A: The readings at freezing on a batch of thermometers are normally distributed with a mean of 0…

Q: The average score of everyone in the world that takes the quantitative section of the GRE is 151.3…

A: Hypothesis testing is an act in statistics whereby an analyst tests an assumption regarding a…

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: A recent study claims that the average age of murder victims in a small city was less than 23.2…

A: Note: Since you have posted questions with multiple subparts we will solve the first three questions…

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

A: From the given information, let X be the eighth-grade students scores. Number of students are…

Q: Ages of Gamblers The mean age of a sample of 22 people who were playing the slot machines is 49.3…

A: (a) State the hypotheses.

Q: A random sample of 83 eighth grade students' scores on a national mathematics assessment test has a…

A: Givensample size(n)=83Mean(x)=263standard deviation(σ)=31significance level(α)=0.04

Q: Scores on a math final are normally distributed with a mean of 72 and a standard deviation of 3.2.…

A:

Q: How would I calculate Δx using these 8 points?

A: Introduction - Standard deviation  σ=xi-x¯2nwhere , n=sample size  mean x ¯=sum of all observations…

Q: The finishing time for Clay was 289 minutes. Calculate and interpret the standardized score for…

A: Given Information :  Kathy and her brother Clay recently ran in a local marathon. The distribution…

Q: A random sample of 88 eighth grade students' scores on a national mathematics assessment test has a…

A:

Q: Use z scores to compare the given values. The tallest living man at one time had a height of 222 cm.…

A: The mean and standard deviation are 170.21 and 5.74, respectively.

Q: A random sample of 88 eighth grade​ students' scores on a national mathematics assessment test has a…

A: As per the policy I can solve only first three subparts for you. Please repost the remaining…

Q: A random sample of 76 eighth grade students' scores on a national mathematics assessment test has a…

A:

Q: Provide an appropriate response. A manufacturer claims that the mean lifetime of its fluorescent…

A:

Q: random sample of 81 eighth grade​ students' scores on a national mathematics assessment test has a…

A: Given: Sample size (n) = 81 Sample mean x¯=290 Hypothesized mean μ= 285 Population standard…

Q: The mean score on a driving exam for a group of drivers education students is 68 points with a…

A:

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

A: From the provided information, Sample size (n) = 89 Sample mean (x̅) = 287 Population standard…

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: .The gas mileage of cars more than 20 years old is a normally distributed data set with a mean of…

A: Given Information:Mean, μ=23.04 miles per gallonStandard deviation, σ=3.31 miles per gallon

Q: The scores on the Accuplacer test and High School GPAs are normally distributed. The Accuplacer test…

A: Given information: Accuplacer μ=40, σ=8 High school μ=2.6, σ=0.20

Q: A random sample of 77 eighth grade​ students' scores on a national mathematics assessment test has a…

A: Null and alternate hypotheses: The investigator is interested to test whether the mean score for the…

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

A: The Z-score of a random variable X is defined as follows: Z = (X – µ)/σ. Here, µ and σ  are the mean…

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: A random sample of 80 eighth grade students' scores on a national mathematics assessment test has a…

A: From the given information P Value = ?

Q: The mean age of lead actresses from the top ten grossing movies of 2010 was 30 years with a standard…

A: According to the given information, we have Mean = 30 Standard deviation = 5

Q: Use z scores to compare the given values. The tallest living man at one time had a height of 260 cm.…

A: Given information: The height of the tallest living man is X = 260 cm. The height of the shortest…

Q: The mean score on a driving exam for a group of driver's education students is 76 points, with a…

A:

Q: Ages of Gamblers The mean age of a sample of 22 people who were playing the slot machines is 50.8…

A: There are two independent samples which are slot machines and roulette. Both samples are normally…

Q: Ages of Gamblers The mean age of a sample of 20  people who were playing the slot machines is 48.5…

A: (Since it has been not mentioned which question so, as per our protocol we shall only answer the…

Q: Could you please highlight the correct answer. and explain it

A: From the given information, the mean weight of these hens is 13.5g with standard deviation 0.9, the…

Q: Scores on the SAT test have a mean of 1518 and a standard deviation of 325. Scores on the ACT test…

A: Here we need to find the incorrect statement from the above.

Q: You have a flock of 100 hens. The mean weight of these hens is 7.4g with a standard deviation of…

A:

Q: A random sample of 86 eighth grade students' scores on a national mathematics assessment test has a…

A: Given n=86 x-bar=267 Standard deviations=30

Q: Aña took both the SAT and the ACT before going to college. Her SAT verbal test had a mean of 500 and…

A: Given  Mean of SAT verbal test MSAT=500 Standard deviation of SAT verbal test SDSAT=100 Raw score in…

Q: Provide an appropriate response. 10) Assume that adults have IQ scores that are normally distributed…

A: Solution: Given data Mean(μ) = 100 Standard deviation ( σ) =15 IQ scores are normally distributed To…

Q: Sales of a new line of athletic footwear are crucial to the success of a company. The company wishes…

A:

Q: Sales of a new line of athletic footwear are crucial to the success of a company. The company wishes…

A:

Q: Use z scores to compare the given values. The tallest living man at one time had was more extreme?…

A:

Q: Assume that adults have IQ scores that are normally distributed with a mean of 100 and a standard…

A: The provided information is  µ=100 σ=15 P(X<x)=0.25P(X-µσ<x-10015)=0.25P(z<-0.6745)=0.25…

Q: Scores on a statistics exam had a mean of 76 with a standard deviation of 11. Scores on a calculus…

A:

Q: Assume that the standard deviation of scores for all juniors is σ = 100. a. Find the value of σ x…

A: Note: Hi there! Thank you for posting the question. As your question has more than 3 parts, we have…

Q: A state department of corrections only accepts perspective employees who score in the top 5% of a…

A: Given that score is normally distributed with mean=80 and standard deviation=σ=10.

Q: A random sample of 80 eighth grade students' scores on a national mathematics assessment test has a…

A:

Q: eandre is in his first semester at a certain university and is taking a calculus course with a large…

A: According to the central limit theorem, the sampling distribution of the sample scores follows the…

Q: The ages of the winners of a cycling tournament are approximately bell-shaped. The mean age is 28.2…

A: Given,mean(μ)=28.2standard deviation(σ)=3.5age(X)=33 years

Q: Help me find which A,B,C, or D is the correct answer to the last part please. The brain volumes…

A: