What is the percentile score for a raw score of 38? Show your work. tham farthn line

Q: A statistics professor made the following histogram for the scores on her class’s first exam.   If…

A: From the Histogram, the scores and the corresponding frequencies are, Given that the passing score…

Q: Determine the percent of data greater than z=−1.40.

A: Know that  X~N( 0 , 1 )   μ=0  , ?=1 (for standard normal distribution)    Z-score =( x - μ )/?

Q: After 8 points are added to each score in a sample, the mean is found to be M = 40. What was the…

A: Let us have n number of scores in a sample. After adding 8 to each score sample mean will be M = 40…

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

A:

Q: Give the value of the test statistic. (Enter your answer rounded to two decim

A: Excel Procedure: Enter the data of No odor in column A. Enter the data of lavender in column B.…

Q: A set of 100 values has a median value of 40. What is the value of the 75th percentile in this set…

A: Introduction: Percentiles are used in statistics to divide a set of numerical values into 100 equal…

Q: 3 4 Percentage 44% 36% 15% 4% 1% a. Find the probability that a fisherman selected at random catches…

A: Given Information: x 0 1 2 3 4 Percentage 44% = 0.44 36% = 0.36 15% = 0.15 4% = 0.04 1% = 0.01…

Q: After 5 points are added to each score in a sample, the mean is found to be M=45 . What was the…

A: Given data: c = 5 points are added to each score in a sample. New mean, M = 45 Let the original mean…

Q: The number of hours per week that the television is turned on is determined for each family in a…

A: Given: * 24 of all families in the sample turned on the television    for 22 hours or less for the…

Q: You take a medical test and the doctor tells you that your wellness z-score is 1.86. What percent of…

A: Let X be a random variable from standard normal distribution with mean = 0 and standard deviation =…

Q: a survey of Town X found an average of 3.2 perosns per household and a mean of 1.2 televisions. I f…

A:

Q: Oprah Winfrey is said to have a Wechsler IQ z-Score of 2.73. Use Excel or your graphing to…

A: Given that Population mean =100  Standard deviation =15 Z score=2.73  We have to calculate…

Q: What score corresponds to the 10th ​percentile?

A: Here Given Graph of percentile(Y axis)  and Test scores( X axis)

Q: Find and interpret the percentile rank of a test score with a value of 150.   A test score of 150…

A: The given test score is 150.

Q: you want to do a survey to help you estimate the true porportion of current students who have…

A:

Q: After six biology tests, Ruben has a mean score of 76. What score does Ruben need on the next test…

A: After 6 biology tests :  Mean = 76  After next test : ( biology test will be 7 now )  Mean =78…

Q: The data show the population (in thousands) for a recent year of a sample of cities in South…

A: Total number of values,n= 25

Q: What proportion of z scores lie between -3 and +3 in the height in inches data set

A: We have to calculate P(-3 < Z < 3)

Q: The average weekly earnings in dollars for various industries are listed below. Find the percentile…

A: Solution-: We have following data: 548,450,475,460,687,514,641 We find the percentile rank of the…

Q: Score 30-under 40, frequency 1. Approximately what percent of students got more than 70?

A: Please submit entire data, comprising of values above 70, for the second subpart  to get it…

Q: A data set has five values. The 45th and the 55th percentile are both 25. The largest value is 125,…

A: We have to given that,   data set has 5 values i.e. n=5 and 45th percentile = 55th percentile = 25…

Q: what percent of the total population is found between the mean and the z-score given? z=3.58

A: We have given that. Standard normal.  X~N( 0 , 1 )   μ =0  , ? =1   Z-score =( x - μ )/?   z= 3.58

Q: The scores and the percents of the final grade for a student in a stats class are given. What is the…

A: The student’s mean score is calculated below:

Q: what range of raw scores makes up the middle 40%

A: The middle 40% means, the scores lie between 30th and 70th percentile. From stand normal, z-score…

Q: Respond to parts B and C below. Part B: Calculate the mean (average) of the given list. Show your…

A: Part A.To find the quartiles, median, and mean of the given data set, we first need to arrange the…

Q: data set has five values. The 45th and the 55th percentile are both 16. The largest value is 64, and…

A:

Q: (a) Compute the population mean, H. H= 51 (b) Compute the mean for all 5C2 = 10 samples with size n…

A: The population data is given by 41,57,49,54,54

Q: Find the z-score that corresponds to the 63rd percentile

A: we have to find the Z-score that corresponds tothe 63rd percentile.

Q: ind the percentile rank for each test score in the data set. Ribs to the nearest whole percentile.…

A: Given data, 5,10,15,23,26,30,35    The percentile rank for the value 5 is?

Q: 16 14 12 10 8. 4 0.5 1.5 2.5 3.5 4.5 5.5 6.5 Frequency

A: Solution

Q: ored 80,91,79,86, and 84 on his previous five tests. What score does he need on his next test so…

A: Given: Ored 80,91,79,86, and 84 on his previous five tests. What score does he need on his next test…

Q: The number of hours per week that the television is turned on is determined for each family in a…

A: Given information- Mean of the data = 35 hours Median = 31.2 hours Sample size = 24 families We have…

Q: A sample consists of n = 16 scores. How many of the scores are used to calculate the range?

A:

Q: Find the 90th percentile. So 10% of the T

A: Let X be the lifetime of LCD TV sets follows an exponential distribution with a mean of 100,000…

Q: Hurricane Damage Find the percentile rank for each value in the data set. The data represent the…

A: Given data  2.3,3.3,6.2,7.9,9.6,11.3 N =6

Q: You want to estimate the percentage of statistics students who get grades of C or better. How many…

A: Obtain the sample size. The formula of sample size is, Obtain the area of probability in the right…

Q: To take a medical test and the doctor tells you that your wellness z-score is 1.86. What percent of…

A: Given information- We have given the problem of standard normal distribution. We have given that a…

Q: Scores on a test have a mean of 66 and a standard diviation of 9. Michelle has a score of 57.…

A: Given,          Mean μ=66          Standard deviationσ=9          Michelle has a score X=57

Q: The table below consists of 7 numbers. Find the percentile of the value 56. (Note: Percentiles are…

A: Given:The given table is shown below which consists of  numbers.56846021478135To find:We have to…

Q: The highest score in a distribution is 74 and the lowest score is 51. What is the range?

A: We have given thatminimum value = 51maximum value = 74