A college entrance exam company determined that a score of 24 on the mathematics portion of the exam suggests that a student is ready for college-level mathematics. To achieve this goal, thecompany recommends that students take a core curriculum of math courses in high school. Suppose a random sample of 150 students who completed this core set of courses results in a mean mathscore of 24.6 on the college entrance exam with a standard deviation of 3.3. Do these results suggest that students who complete the core curriculum are ready for college-level mathematics? That is,are they scoring above 24 on the mathematics portion of the exam? Complete parts a) through d) below.Click the icon to view the table of critical t-values.(a) State the appropriate null and alternative hypotheses. Fill in the correct answers below.The appropriate null and alternative hypotheses are Hoversus H₁(Type integers or decimals. Do not round.)255 Table of Critical t-Values^123457895 0.72710-Area inright tail0.25 0.20 0.151.000 1.3761.963 3.0780.816 1.061 1.386 1.8860.76.5 0.978 1250 1.638H0.741 0.9410.920110.69712 0.6950.6940.870140.692(868150.691 0.86616 0.690 0.8651.1561.0881.0831.0790.100.718 -0.9060.7110.896 1.119 1.41501.706 0.889 1.108 1.39701.703 0.8831.1001.3830.700 0.8791.372 1.8120.87610741.0717-DistributionArea in Right Tail0.050.025 0.026.314 12.706 15.894 31.8214.303 4.849 6.9653.482 4.5412.9993.7472.757 3.36526122.9202.3531.533 2.1321.476 20151.8951.3631.7961.356 1.7821.350 1.7711.3451.7611.3411.7531.7462.77625712.3062.2622.2282.2012.1792.1602.1452.1312.12024492.3982.3592.3280.010.0052.8962.8212.7644.6044.0323-7072.998 3.4993.3553.2503.16963.657 127.321 318.3099.92522.32710.2157.1735.8930.00252.718 3.1062.6813.0552.6502.264 2.6242.9772.2492,60229472.583 2.92114.0897.4535.5984.7734.3174.0293.8333.6903.5813.4973.4280.00133263.2863.2525.2084.78545014.2974.0253.9303.8523.7873.7330.0005636.61931.59912.9248.6106.8695.9595.4084.7814.5874.4374.22141404.0734.015df-23145791213141516

A college entrance exam company determined that a score of 24 on the mathematics portion of the exam…

Answered: A college entrance exam company…

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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A company conducted a survey on the number of hours employees spend on a particular task per week. The data collected from a sample of 10 employees are as follows: 5, 6, 7, 8, 9, 10, 10, 11, 12, 13. Calculate the standard deviation of the hours spent on the task per week.
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Fran is training for her first marathon, and she wants to know if there is a significant difference between the mean number of miles run each week by group runners and individual runners who are training for marathons. She interviews 42 randomly selected people who train in groups and finds that they run a mean of 47.1 miles per week. Assume that the population standard deviation for group runners is known to be 4.4 miles per week. She also interviews a random sample of 47 people who train on their own and finds that they run a mean of 48.5 miles per week. Assume that the population standard deviation for people who run by themselves is 1.8 miles per week. Test the claim at the 0.01 level of significance. Let group runners training for marathons be Population 1 and let individual runners training for marathons be Population 2. Step 2 of 3 : Compute the value of the test statistic. Round your answer to two decimal places.
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