There are 250 students in a class. (A) James is ranked 20th in the class. What is James’ percentile rank? Enter a whole number as the answer. For example, if the percentile rank is the 72nd percentile, enter 72.(B) Sarah is ranked at the 94th percentile in the class, what is Sarah’s class rank? Enter a whole number as the answer. For example, if the class rank is the 3rd, en

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A: Let Total no. of U.S. residents be 100. Total No. of Hispanic in U.S. =13% of U.S. residents…

Q: two factory plants are making tv panels. yesterday plant a produced 3000 fewer panels that plant b…

A: Here we have to find the number of panels produced by plant b.

Q: Eight hundred student took a 90-point standardized examination. After the examination, the students…

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Q: Two factory plants are making TV panels. Yesterday, Plant A produced 4000 panels. Ten percent…

A: Given that Plant A produced 4000 panels and defective is 10% Defectives from plant B is 3%,  overall…

Q: Susan ranks 10th in a class of 40. Her percentile rank is 75. Why 75 is her percentile rank?

A:

Q: What is the percentile rank of a student who is enrolled in 15 credits? (Hint: This is the same…

A: Given that , A survey of the population of 51 students asks how many credits students are taking and…

Q: A doctor is examining his patient records in hopes to determine the true proportion of his patients…

A: From the provided information, The hypotheses can be constructed as: H0: p = 0.64 H1: p < 0.64…

Q: The following table shows the results of a survey of authors by a (fictitious) publishing company.…

A: The percentage of new authors are unsuccessful is given by, number of unsuccessful new authorstotal…

Q: If a person’s z score equals -2.02, what is their percentile?

A: Given problem Given that   Given Person's z score =  -2.02 Using the Standard Normal Table ( Z Table…

Q: STEM Internships - In 2017, a survey conducted by the MSU Graduate School asked MSU graduate…

A: Given data number of success , x= 290.0 sample size, n = 415 population…

Q: Youth survey According to a recent Gallup survey, 93%of teens use the Internet, but there are…

A: a. It is given that the percentage of boys playing computer games is 77% and the percentage of boys…

Q: 1. A recent study of young executives showed that 30 percent run, 20 percent bike and 12 percent do…

A: Given data is :  A recent study of young executives showed that 30% run , 20%  bike and 12% do both.…

Q: The table summarizes the blood group and Rh type for 100 people. a. How many of the subjects were…

A: Since you have posted a question with multiple sub-parts, we will solve first three subparts for…

Q: The test score at the 25th percentile is 108. What is the test score at the 75th percentile?

A: Solution

Q: 40% of all people have cooties. 30% of all people play pattiecake and have cooties. What percent of…

A: Conditional probability is the chance of occurrence of an event given that another event has already…

Q: Two factory plants are making TV panels. Yesterday, Plant A produced 10,000 panels. Ten percent of…

A:

Q: Two factory plants are making TV panels. Yesterday, Plant A produced 15,000 panels. Three percent of…

A: The given data is: Plant A produced 15,000 panels and 3% are defective  Let Plant B produce x panels…

Q: On a test, John scored at the 50th percentile and Jim scored at the 25th percentile; therefore,…

A: A percentile indicates a score's position in relation to those other values from the same dataset.…

Q: A researcher is interested in maximum-security inmates. She groups inmates by the type of crime…

A: Here, the stratified random sampling method was used. Because the whole population was divided into…

Q: Math (with Calculator) - Question 17 - At Lincoln High School, approximately 7 percent of enrolled…

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Q: In 2015, the median family income in the United States was $66,650. (Source: U.S. Census Bureau) If…

A: Given: Median = $66,650, 90th percentile = $178,500.

Q: A parts store sells both new and used parts. Sixty percent of the parts in stock are used. Sixty-one…

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Q: A researcher is interested in attitudes towards releasing prisoners with Alzheimer's who have a life…

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A: Given n1=30n2=30 Number of times penny lands tails side up ,x1=18 Number of times dime lands tails…

Q: On a placement examination, Rick scored lower than 1216 of the 12,870 students who took the exam.…

A: Consider the given: Total students = 12870Rick scored lower than 1216,So, Rick score is among top…

Q: The sales force at a certain company successfully closed 96 out 200 sales calls

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A: Solution:From the given information, the proportion of African American is 0.13, random sample of…

Q: If a person’s z score equals 2.08, what is their percentile?

A: Given info: The person’s z score equals 2.08.

Q: How profitable are different sectors of the stock market? One way to answer such a question is to…

A: Given Data : For Sample 1 x̄1 = 14 n1 = 32 σ1= 4.5 For Sample 2…

Q: In a statistics activity, students are asked to spin a penny and a dime and determine the proportion…

A: Please see the attachment.......

Q: Roxanne ranks 10th in a class of 40. Her percentile rank is

A:

Q: In a given set of scores, the following data were obtained, the highest score is 83, the median…

A: A P percentile is the value in a dataset below which P percent of the data lies. A median is the…

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A:

Q: What is the 87.7 percentile of X~N(12,3)

A: Answer: Given that, X~N(12,3)

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A: Given ,sample size (n)=15sample mean(x)=225standard deviation(s)=25population mean(μ)=200

Q: Two factory plants are making TV panels. Yesterday, Plant A produced 8000 panels. Ten percent of the…

A:

Q: In a certain year, 86% of all Caucasians in the U.S., 74% of all African-Americans, 74% of all…

A:

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A: The owner of a car dealership planned to develop strategies to increase sales. For one month he…

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A: Given data, n=200 x=120 p=?

Q: 2. On a reading test, Amelia's score of 455 was higher than the scores of 4256 of the 7210 students…

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Q: The campus demographics state of 40 percent of students are male if there are 300 students, then how…

A:

Q: Two factory plants are making TV panels. Yesterday, Plant A produced 6000 panels. Ten percent of the…

A: Two factory plants are making TV panels. Yesterday, Plant A produced 6000 panels. Ten percent of the…

Q: In a certain year, 89% of all Caucasians in the U.S., 75% of all African-Americans, 75% of all…

A:

Q: 2. Anita and her little brother are both 62 inches tall. Anita’s height is in the 85th percentile…

A: Anita's little brother is taller for this age

Q: In a certain year, 89% of all Caucasians in the U.S., 75% of all African-Americans, 75% of all…

A:

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.