19. Achievement Test Scores The data shown representhe scores on a national achievement test for a groupof 10th-grade students. Find the approximate percentileranks of these scores by constructing a percentilegraph.a. 220b. 245c. 276d. 280e. 300Score196.5-217.5217.5-238.5238.5-259.5259.5-280.5280.5-301.5301.5-322.5Frequency1748For the same data, find the approximate scores that cor-respond to these percentiles.f 15thg. 29thh. 43rdi. 65thj. 80th
Image Transcriptionclose
19. Achievement Test Scores The data shown represen the scores on a national achievement test for a group of 10th-grade students. Find the approximate percentile ranks of these scores by constructing a percentile graph. a. 220 b. 245 c. 276 d. 280 e. 300 Score 196.5-217.5 217.5-238.5 238.5-259.5 259.5-280.5 280.5-301.5 301.5-322.5 Frequency 17 48 For the same data, find the approximate scores that cor- respond to these percentiles. f 15th g. 29th h. 43rd i. 65th j. 80th
As there are lot of subparts in the question, I can only help you with the first three subparts (a,b,c) of the question. Using the percetiles calculated you can solve the next two subparts d,e. For help in subparts f to h kindly ask a new question. Thank you
Given frequency distribution of scores on a national achievement test for a group of tenth grade students. The frequency distribution is shown below and we need to find the percentile ranks for this data.
Here let us calculate the cumulative frequency of the data distribution. In cumulative frequency we add the frequencies of all the prior class intervals as well. For example cumulative frequency of class 196.5-217.5 is 5 and class 217.5 - 238.5 cumulative frequency is 22 and so on. After calculating the cumulative frequencies we get the following.
Here we calculate the percentile rank of every class interval by dividing the cumulative frequency by the total frequency and multiplying by 100. Percentile rank of a score is nothing but t...
Math
Statistics
Related Statistics Q&A
Find answers to questions asked by student like you
Show more Q&A addQ: how do I compute six deviations (x scores are [0,1,1,1,2,7,]) from the mean (x-m), and list these si...
A: Solution:Calculation of mean:The mean of X scores is calculated as follows.
Q: Do larger universities tend to have more property crime? University crime statistics are affected by...
A: (a) Scatter diagram of the data:The least-squares regression line is the best fitted to the given da...
Q: I created a Venn Diagram to Solve This Problem.
A: Given Total number of tourists = 1232Total number of tourists visited Magic kingdom = 300Total numbe...
Q: What is needed to find a p value?
A: In hypothesis test we define the null hypothesis which is tested for possible rejection under the as...
Q: In a survey of 6000 women, 3431 say they change their nail polish once a week. Construct a 99% confi...
A: Confidence interval:The (1-α) % confidence interval for proportion p is given by,
Q: In a normal distribution with mean 3 and variance 49, what are the upper and lower limit scores for ...
A: The given information is that the scores distributed normally with mean 3 and variance is 49. The st...
Q: Please answer the whole question. (1) Let x be the age in years of a licensed automobile driver. Le...
A: (e) The value of coefficient of determination:The given data is represented in the following table:
Q: The dose-response effect is best described as A. when similar studies produce similar results B...
A: Introduction:The dose-response effect is a measure of the magnitude of the response in the subjects ...
Q: Find the minimum sample size n needed to estimate muμ for the given values of c, sigmaσ, and E. c=...
A: The formula for the minimum sample size is as follows:
