5. A surgical team has developed a new technique for an eye operation. Under the old method it is known that only 30% of the patients will recover full vision. Using the new technique, 88 out of 225 patients have recovered full sight. Test the hypothesis that the new method has a better success rate than the old, using a 1% level of significance. Spr xaunch Meeting - ZoomXccc.edu/courses/191939/quizzes/1457221/takeorialssources2f22WSX3. Child development researchers designed an experiment in which one twin in each pair spent two hours a day ina room well supplied with "educational" toys (experimental condition). The other twin in each pair spent thesame time in a room with "non-educational" toys (control condition). For each child, they recorded the age (inmonths) when the child started reading at a primary level. The results were:Twins, Toys, and Reading AgeTwin Pair #Experimentalgroup (readingage)Control group(reading age)A*3BECD$5846153E75662634. Allie, a veterinarian who examines prize bulls, starts by giving them tranquilizer shots. The shot is supposed tolast an average of 65 minutes, and it usually does. However, Allie hates being chased by a bull who wakes uptoo soon, and worries about bulls that take too long to recover. A journal article says that the shots have astandard deviation of 15 minutes. A random sample of 10 of Allie's bulls had a standard deviation of 24minutes. At the 1% level of significance, is Allie justified in claiming that the variance is larger than the articlesays?aww4hp14f5f76071RLLdo606452655f6TG6ODY&87Hf8*DN00fgf109MKOVWf12P>0atinsprt-[ xLaunch Meeting - Zoomccd.edu/courses/191939/quizzes/1457221/takebringutorialsResources@2x +Choose TWO of the following five problems and write out a COMPLETE hypothesis test for each one. Include nulland alternative hypotheses, level of significance, distribution to be used (with a sketch showing p-areas or criticalregions), the critical value and test statistic (if you are using that method) and/or the p-value (if you are using thatmethod). JUST TWO OF THEM!1. A CEO wants to know whether management style affects the number of sick days taken by employees. Threedepartments were studied, all having the same number of employees but different management styles. For arandom sample of three months, the numbers of sick days were as follows:Employee Sick Days for Three Management StylesQuality control teams Informal employee inputTop-down management191612142818What would you tell the CEO? Make sure to state your null and alternate hypotheses, sketch the appropriatedistribution and the critical region, showing the critical value and the value of the test statistic, and explain yourconclusion. Use a 5% level of significance. (Assume that the distributions are normal and have approximately thesame population standard deviations.)2. Pro football players earn huge salaries, but they have short professional careers. One sports magazine reportedthat the average career length is 4.3 years. A random sample of 40 retired players showed a sample meancareer length of 5.2 years. We will accept the magazine's value for the population standard deviation = 2.3years. Based on these data, is the population mean career length higher than the value reported in themagazine? Use a 5% level of significance.abpf3f4f5f109#34% A1012115dof653W E R T<6&87Yf8*fg8D-Ef12F

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A surgical team has developed a new technique for an eye operation. Under the old method it is known that only 30% of the patients will recover full vision. Using the new technique, 88 out of 225 patients have recovered full sight. Test the hypothesis that the new method has a better success rate than the old, using a 1% level of significance.

A surgical team has developed a new technique for an eye operation. Under the old method it is known that only 30% of the patients will recover full vision. Using the new technique, 88 out of 225 patients have recovered full sight. Test the hypothesis that the new method has a better success rate than the old, using a 1% level of significance.

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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If the power of an experiment is low then The experiment will likely be inconclusive. Any significant findings obtained are suspect. The results are skewed.
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