Use the distribution for the probability of getting a correct answer when making random guesses on a 4 question multiple choice exam. Is guessing 4 correct results a significantly high number of successes? Explain in 1- 2 complete sentences. Incomplete sentences will receive partial credit. P(x) 0.198 1 0.395 0.296 0.099 4 0.012

Use the distribution for the probability of getting a correct answer when making random guesses on a 4 question multiple choice exam. Is guessing 4 correct results a significantly high number of successes? Explain in 1- 2 complete sentences. Incomplete sentences will receive partial credit. P(x) 0.198 1 0.395 0.296 0.099 4 0.012

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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Quit smoking: A recent study reported that in a sample of 234 European-American HIV-positive smokers, 105 of them had used a nicotine patch to try to quit smoking, and in a sample of 81 Hispanic-American HIV-positive smokers, 25 had used a nicotine patch. Can you conclude that the proportion of patch users is greater among European-Americans? Let p₁ denote the proportion of European-Americans who used the patch. Use the a=0.01 level of significance. Part 1 of 4 (a) State the appropriate null and alternate hypotheses. Ho: P₁ (Choose one) ▼ P₂ H₁: P₁ (Choose one) P2 This is a (Choose one) test. Part 2 of 4 (b) Find the P-value. Round the answer to four decimal places. P-value= X S Ś
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Need help with ONLY part (d) on this Intro to probability and statistics homework problem. Below the homework problem is the answers from the textbook. Make sure your handwriting is neat and readable.
7:19 APPLICATION QUESTIONS Directions: This class is like a series of word problems. Not only with the problems be in words, but also you will have to explain what the statistical results mean in words. Therefore, the skill of going from words to math and math to words will be crucial. Write the italicized portion of each statement in mathematical notation. Only the italicized portion needs to be translated into notation: 5G UC lll 23% Example: Test whether the mean of a population is 12. Answer: μ = 12 13. A researcher took a sample. The mean of the sample was 192. 14. They assumed that the population standard deviation was 0.174. 15. An analyst wanted to test whether the population mean was more than 25. 16. A sample was taken and its standard deviation was 7.3. 17. A sample of 30 tax returns was taken, so the sample size is 30. 18. Is the mean of this population smaller than 14? 19. A researcher argued that the population mean was not 215. 20. Test whether the population proportion…
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Need help with this Intro to probability and statistics homework problem. Below the homework problem is the answers from the textbook. Make sure your handwriting is neat and readable.
Do people walk faster in the airport when they are departing (getting on a plane) or do they walk faster when they are arriving (getting off a plane)? A reputable researcher measured the walking speed of random travelers in two International Airports. His findings are summarized in the table. Complete parts (a)-(c) below. E Click the icon to view the findings. a muIVIQudiS WdIK ai OlmereIL speeus uepenungUII WITEUTE Uiey die oeparng of diTIViny di tTE u – V. I1ever of sigiIcance? Le y tepieseni me fmeal| speed of people departing and p, represent the mean speed of people arriving. State the null and alternative hypothesis. A. Ho H1=H2 OB. Ho P1 - 2 H1 H1 > H2 Determine the P-value for this hypothesis test. P-value (Round to three decimal places as needed.) Enter your answer in the answer box and then click Check Answer. es