LU he leit UI U.)U Cheryl has taken two quizzes in her history class. She scored 15 on the first quiz, for which the mean of all scores was 12 and the standard deviation was 2.4. Her score on the second quiz, for which the mean of all scores was 11 and the standard deviation was 2.0, was 14. In comparison to her classmates, did Cheryl do better on the first quiz or the second quiz?

Q: Do the students ever make up information for an assignment? You be the judge. Students in an applied…

A: The mean and standard deviation is μ=65σ=7 Now, for case X=42, The required probability can be…

Q: Lindsey and Karen began arguing about who did better on their tests, but they couldn't decide who…

A: Lindsey (Art History) 70.7 9.4 81.1 Karen (Social Studies) 61 9.6 70.7 a) Calculate the…

Q: Calculate the z-score for Jacqueline's test grade. z=z= [Round your answer to two decimal places.]…

A:

Q: Malik and Landon began arguing about who did better on their tests, but they couldn't decide who did…

A: Given:   Malik (Art history) 75.1 10 71.1 Landon (Math) 66.5 9.1 71.8 Formula:

Q: Corey and Noah began arguing about who did better on their tests, but they couldn't decide who did…

A: Note: Hi there! Thank you for posting the question. Here to avoid the plagiarism issue we have used…

Q: Jose and Josh began arguing about who did better on their tests, but they couldn't decide who did…

A: Solution: Given information:   Mean  Standard Deviation  English Class 73.9 9.4 Art History…

Q: Derek and Inesh began arguing about who did better on their tests, but they couldn't decide who did…

A: The all students' test grades in the social studies class had a mean of 75.8 and a standard…

Q: Jacy and Bella began arguing about who did better on their tests, but they couldn't decide who did…

A: GivenJacy took a test in Math and earned a 78.2 Bella took a test in social studies and earned a…

Q: Mikayla and Kathryn began arguing about who did better on their tests, but they couldn't decide who…

A: the students' test grades in the Art History class had a mean of 72 and a standard deviation of 9.3,…

Q: Suppose there are two groups of students. Group A and Group B both have an average height of…

A: Here there are two groups of students are given named as A and B. And the given parameters of A and…

Q: Emily and Hillary began arguing about who did better on their tests, but they couldn't decide who…

A: Note: Hi there! Thank you for posting the question. To avoid the Plagiarism issue we have used the…

Q: 5 Colton and Jake began arguing about who did better on their tests, but they couldn't decide who…

A: Given information English class Colton Marks x = 72.9 Mean µ = 76.7 Standard deviation σ = 8.9 Art…

Q: Juwan and Salvador began arguing about who did better on their tests, but they couldn't decide who…

A: Here we need to compute the z score of Salvador and Juwan and find who performed relatively better…

Q: At a supermarket, the mean waiting time to get to the checkout counter is 5 minutes and the standard…

A:

Q: In preparation for the upcoming school year, a teacher looks at raw test scores on the statewide…

A: Let Z be the standard normally distributed random variable with mean 0 and standard deviation 1.

Q: Nate and Brendan began arguing about who did better on their tests, but they couldn't decide who did…

A:

Q: John got 83 on a test, with a standard deviation of 10.73 and the class mean was 77.1. Paul got 88…

A: From the provided information, John got (X) 83 on a test with a standard deviation (σ) of 10.73 and…

Q: Nina and Amy began arguing about who did better on their tests, but they couldn't decide who did…

A: Given: All the student’s test grades in the English All the student’s test grades in the Society…

Q: In an English test, the mean is 60 and the standard deviation is 6. Assuming the scores are normally…

A:

Q: DeAndre and Jonah began arguing about who did better on their tests, but they couldn't decide who…

A: GivenDeAndre earn in science=81.2Jonah earn in Art History=61.9For science Mean(μ)=72.2standard…

Q: Out of a class of 25 students, 24 took an exam in class and got a mean of 74 points and a standard…

A: Given: Total number of students, n = 25            Number of students who gave the test, n' = 24…

Q: Juwan and Aaron began arguing about who did better on their tests, but they couldn't decide who did…

A:

Q: A successful basketball player has a height of 6 feet 4​inches, or 193cm. Based on statistics from a…

A: The z-score identify that the value how many standard deviations from the mean. If the z-score is…

Q: a standard deviation of 9.8, and all the students' test grades in Social Studies had a mean of 63.4…

A: Given : a) For Lauren Test value =x= 75 population mean=μ = 76.4 population standard…

Q: qualifying score to join the cheer team?

A:

Q: A football coach claims that the average weight of all the opposing teams’ members is 210 pounds.…

A: Consider that μ is the true average weight of all the opposing teams’ members.

Q: Salomé and Latasha began arguing about who did better on their tests, but they couldn't decide who…

A: Given that  Salome's test grade  Mean = 73.7 , Standard deviation = 10 Social studies = 80.8…

Q: aking the Graduate Management Aptitude Test averaged 812 with a standard deviation of 145. Only…

A: Given: Meanμ=812Standard deviationσ=145 Consider, X be the random variable that shows the average…

Q: In a class of 29 students, 28 of them took an exam in class and 1 student took a make-up exam the…

A: a)   The average score for 28 exams is 81 points and standard deviation is 7.4.

Q: How would you find the standard deviation by hand, of the following numbers: 1,1,3,01,6,2

A: Standard deviation:Standard deviation quantifies the dispersion of a data set from its mean. The…

Q: has averaged 7.48 mg/L with a standard deviation of 1.6 mg/L. If 10 students measure the sulfate in…

A: Given: sample size, n = 10Mean, μ =7.48std. deviation, σ = 1.6

Q: a) Calculate the z-score for Lucas's test grade. z=z= b) Calculate the z-score for Alex's test…

A:

Q: A class has an equal number of boys and girls. The boys all got 78% on a test and the girls all got…

A: From the provided information, Boys got 78% on a test and girls got 84%. Let n = number of girls =…

Q: wo students, Donald and Martin, want to find out who has the higher GPA when compared to each of…

A: Ƶ -score for Donald is   Ƶ = x¯-μσ       = 3.85-3.250.4Ƶ = 1.5

Q: Brianna and Miranda began arguing about who did better on their tests, but they couldn't decide who…

A: Introduction: For a random variable, X with mean μ, and standard deviation σ, the z-score is given…

Q: 2 Kimberly and Alexis began arguing about who did better on their tests, but they couldn't decide…

A: Given data,For Math examμ=76.8σ=9.9Kimberly score is X=76.4For Social examμ=62.6σ=9Alexis score is…

Q: In preparation for the upcoming school year, a teacher looks at raw test scores on the statewide…

A:

Q: Miranda and Alma began arguing about who did better on their tests, but they couldn't decide who did…

A: Given information- We have given that Miranda took test in social studies and earned a 71.5. And…

Q: The mean IQ of 200,000 current and past University of Manitoba students has been found to be 81.9.…

A: Given: Population mean μ=81.9 Population standard deviation σ=13.1 Number of people in 2016 = 29987…

Q: Miranda and Karla began arguing about who did better on their tests, but they couldn't decide who…

A: Miranda's test grade (Social Studies) 71.4 75.3 10.7 Karla's test grade (Art History) 60.9…

Q: Rachael and Autumn began arguing about who did better on their tests, but they couldn't decide who…

A:

Q: n which test did she perform better?

A: Here use standard normal variable Z for comparison  Here mean and standard deviation is from 200…

Q: Logan and Brian began arguing about who did better on their tests, but they couldn't decide who did…

A:

Q: In preparation for the upcoming school year, a teacher looks at raw test scores on the statewide…

A: Formula of z score : z = x - μσ

Q: Arthur has two children, Zeke and Lucy, who competed in a track meet. The results were as follows:…

A: Z-score: The z-score is a numerical measurement that describes a value's of the relationship to the…

Q: In a multiple-choice examination in Chemistry, students Mikasa and Jean received scores of 82 and…

A: Given problem Given that   In a multiple-choice examination in Chemistry, students Mikasa and Jean…

Q: Lindsey and Andrea began arguing about who did better their tests, but they couldn't decide who did…

A:

Q: Dakota and Bill began arguing about who did better on their tests, but they couldn't decide who did…

A:

Q: Nick and Donald began arguing about who did better on their tests, but they couldn't decide who did…

A: Givennick test grade in science is 79.6x=79.6science mean(μ)=73.8standard deviation(σ)=9.3Donald…

Q: Rebecca and Emma began arguing about who did better on their tests, but they couldn't decide who did…

A: Rebecca earned a test grade of 71 in English. The mean and standard deviation of test grades in…

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.