The pass result of 50 students who took up a testis given below :MarksNo. of students451069768483If the average marks of all the 50 students were 5 16, find outthe average marks of the students who failed.

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Answered: The pass result of 50 students who took…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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Prof. Leen wants to estimate the more than 92% percent of adults living in a large city have cell phones. Prof. Leen randomly selects 160 adult residents to determine whether they have cell phones. Of the 160 people sampled, 155 own cell phones. Find the p-value for the test. (Round the answer to three decimal places.)
A mathematics professor lost a test paper belonging to one of her students. She remembered that the mean score for the class of 20 was 81 and that the sum of the 19 other scores was 1530. What was the grade on the paper she lost?
The NAEP music assessment scores for eighth grade students are approximately N (150, 35). Find the z-scores by standardizing the following scores: 150, 140, 100, 180, and 230. The percentile score is the proportion of students who would score LESS THAN OR EQUAL TO the score for the individual student. Compute the percentile scores for the five scores.
A national forest service wanted to estimate the number of deer in a particular national park. They cotton tag 71 deer and release him back into the park. Later they selected a sample of 272 deer. Of the 272 dear, 17 were tagged, assuming that the portion of tag deer and the sample holds for all deer in the forest, what is the best estimate of the number of deer in the park?
The low temperatures in the Town of Rigby for 5 conservative days were -12, -17,-11,-12,-18 what was the mean low temperature for five days
If a coin is flipped 225 times and the number of Hs is 75. Compute the proportion of Hs. Round to three places.
What percent of students earned a passing grade of 70 or higher? TEST SCORES: 50,60,61,63,66,67,73,82,89,92
The mean score on a test is 75, the median score is 80, and the mode score is 85. Pat got an 82. Is Pat's score better than half the class?
350 students took a standardized test, Sarah’s score was ranked at the 7th. What was the percentile rank of Sarah’s score?
A sample of 150 married women determined that 127 are happy in their marriage. A sample of 150 married men determined that 76% are happy in their marriage. If you plan to test if the percent of married women who are happy in their marriage is greater then the percent of married men who are happy in their marriage- Answer the following: What is the test statistic? Write to 4 decimal places.
A home pregnancy test was given to women, then pregnancy was verified through blood tests. The following table shows the home pregnancy test results. Positive Negative Total Pregnant 54 9 63 Not Pregnant 4 55 59 Total 58 64 122 Round your answers to the nearest thousandth.PP(positive∣∣pregnant) = PP(pregnant∣∣positive) = PP(negative∣∣pregnant) = PP(not pregnant∣∣negative) =
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The pass result of 50 students who took up a test is given below : Marks No. of students 4 5 10 6. 9. 7 6 8 4 9 3 8 If the average marks of all the 50 students were 516, find out th: average marks of the students who failed,