(a) Find the 45h percentile of the lengths. th (b) Find the 76 percentile of the lengths.

Q: From the table below, give the percentile of a value of 70 (rounded to the nearest whole percentile)…

A:

Q: Kevin scored at the 70th percentile on a test given to 9920 students. How many students scored lower…

A:

Q: If X ~ N(10,3), find the X value that is the 16th percentile.

A: From the provided information, Mean (µ) = 10 Standard deviation (σ) = 3

Q: The teacher let the students make up some of their work, so that now 86 students are passing out of…

A: The sample proportion/point estimate of the sample of size n can be defined as: p^=xn  Here, x =…

Q: Find the n amount, given that with a 95 percent confidence the error is by three percentage points…

A: Formula : Margin of error: ME=Zα/2 * √p̂(1-p̂)/n

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

A:

Q: 00:00 In a survey, 7 out of 8 people preferred cooking to washing dishes. How would you write this…

A: As given,    7 out of 8 people preferred cooking to washing dishes.

Q: Complete the following statement. If you are asked to find the 85th percentile, you are being asked…

A: If you are asked to find the 85th percentile, you are being asked to find

Q: The mean for the cost is $ (Round to the nearest cent as needed.)

A: The mean formula for the frequency distribution is, x¯=1n∑fixii In the formula, n is the total…

Q: From the table below, give the percentile of a value of 61 (rounded to the nearest whole percentile)…

A: To find pth percentile use following formula. Here x = 61

Q: The average number of red blood cells per cubic mm in humans is about 5 million. We'll let μ =…

A: Given: μ= 5000000           σ=500000 we need to find i) the values for the middle 80% people i.e…

Q: е. Find her percentile scores for the two exams. (use R-code)

A: The score of Mathematics is 94.6 and the score of  Physics is 93.7 Mean score of  mathematics 86.1…

Q: What percent of scores are below a T score of 56?

A: Given, T score is 56. Now,

Q: From the data below, a.the value of 60th percentiles P60 b.the value of the 95th percentile P95

A: Given,sample size(n)=50the given data is already arranged in ascending order.

Q: In a class of 50 students, Heather has a rank of 14. At what percentile is she? Heather has a…

A: According to the provided information, B = 14 N = 50

Q: Jesse was ranked 36th in his graduating class of 180 students. At what percentile is Jesse's…

A:

Q: Kevin scored at the 70th percentile on a test given to 9940 students. How many students scored lower…

A: Given Kavin got 70 percentile. Total students are 9940.

Q: Kevin scored at the 60th percentile on a test given to 9920 students.How many students scored lower…

A: Given Kevin score = 60th percentile No. Of students = 9920

Q: For the numbers below, find the percent of cases falling above the z-score: a. 0.25 b. -2.0

A: Required probability is P(Z>0.25)

Q: 13. In solving for the 70th. percentile, the lower boundary to use is

A: To determine the lower boundary in solving gor 70th percentile, the number of observations is n =…

Q: Kevin scored at the 60th percentile on a test given to 9920 students. How many students scored lower…

A:

Q: Kevin scored at the 60th percentile on a test given to 9780 students. How many students scored lower…

A: Given that the percentile of Kevin is 60.This means 60% of the students will have score lower than…

Q: Complete the following statements: 1. In general, _________% of the values in a data set lie at or…

A: Solution : Definition of percentile - The percentile indicates the values below which given…

Q: Find the measures.

A: Known fact: A shape polygon with 4 equal sides is called square. Given that WZ=27. That is, side of…

Q: Es. What is the lowest I.Q. score acceptable for the advanced training ?

A: Let X denote the IQ of army volunteers. Given that X follows N(mean = 110, SD = 10), then Z = (X -…

Q: From the table below, give the percentile of a value of 106 (rounded to the nearest whole…

A: First arrange the given numbers in non descending order.

Q: F E 6.

A: Given a parallelogram CDEF.

Q: Find the 35 percentile of x, Round the answer to two decimal places. The 35 percentile is

A: A sample of size 86 will be drawn from a population with mean 90 and standard deviation 24. 2. We…

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

A:

Q: On a placement examination, Fatimah scored lower than 420 of the 980 students who took the exam.…

A: It has been given that Fatimah has scored less than 420 of 980 students which means her score is…

Q: d) Find interquartile of the data e) Find the 83rd and 70th percentile

A: Given: Age of trees, X 18 21 22 25 26 27 29 30 31 33 36 37 41 42…

Q: NCAE shows that the average score of the students is 80 and sd is 15. What is the percentile rank of…

A: Given :     Mean (μ)=80Standard deviation (σ) = 15x=84

Q: The value of a certain car when it was brand new with 0 mileage was $17,000 but the value dropped to…

A: The given scatter plot is a linear and it's slope is negative. Given that, at zero miles the value…

Q: d. Find the Inter Quartile Range (IQR) for time spent at the hot springs. Q1: minutes Q3: minutes…

A:

Q: What is the formula to find the Mean?

A: The formula to find the mean as follows

Q: In a class of 80 students, Heather has a rank of 16. At what percentile is she? Heather has a…

A: Heather has rank 16 in a class of 80 students. The number of students having rank after Heather is,…

Q: Kevin scored at the 60th percentile on a test given to 9920 students. How many students scored lower…

A: Since Kevin scored 60th percentile, it means that Kevin's score is in the top 60 % of amongst the…

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

A: Number of data values less than 465= 4256 Total number of data values= 7210 Percentile=?

Q: In solving for the 45th percentile , the lower limit to be used is score f cf cf percentage 40-44 18…

A: Given: The provided data is: Score Class boundary f cf cf percentage 40-44 44.5-39.5 6 18 100…

Q: During the scholarship examination of a certain scholarship grant taken by 10,000 applicants,…

A: Given : Annabelle score (x) =350total number of applicant =10000Number of rank below x =8995

Q: d. Find the Inter Quartile Range (IQR) for time spent at the hot springs. Q1: minutes Q3: IQR:…

A:

Q: On a reading test, Shaylen's score of 455 was higher than the scores of 4252 of the 7274 students…

A: The percentile of score x is calculated by below formula percentile of score x =Number of data value…

Q: At 4PM, the total snowfall is 2 centimeters. At 7PM, the total snowfall is 12 centimeters. What is…

A:

Q: What would be the speed of a driver who was at the 96th percentile ? Show all work.

A: X follows a Normal distribution with mean = 184.8 and S.D = 7.2 Then z=(x-mean)/SD = (x-184.8)/7.2…

Q: Angela took a general aptitude test and scored in the 85th percentile for aptitude in accounting.…

A: Given, Angela scored 85th percentle. 85th percentile means there is 85% scores below the score and…

Q: In the following data, x is the average number of hours the student spent working on math each week…

A: Linear regression is a linear approach to model the relationship between a dependent variable…

Q: z value that corresponds to the 81 percentile.

A: Given Random Variable X~N(0,1) we have to find a Z value corresponding to the 81 Percentile that is…

Q: What is the relationship between R sqare and p-value?

A: Relationship between R square and p-value

Q: jocelyn estimates that a piece of wood measures 5.5 cm. if it actually measures 5.62 cm, what is the…

A: Given : Jocelyn estimates that a piece of wood is 5.5 cm. The actual measures 5.62 cm. The error is…