**Transcription from Educational Context:****Section 2.2.25**According to a Pew Research Center report from 2012, the average commute time to work in California is 27.5 minutes. To investigate whether a different average is true for the small city that she lives in, a California high school student surveys 45 people she knows—her teachers, her parents and their friends and co-workers—and finds the average commute time for this sample to be 24.33 minutes, with a standard deviation of 9.53 minutes.**Additional Explanation:**This excerpt discusses a study conducted by a high school student to examine if the average commute time in her local city differs from the reported statewide average in California as of 2012. The student collected data from 45 individuals using her personal network. The sample calculation revealed an average commute of 24.33 minutes with a standard deviation indicating the variability in the data. This suggests a local deviation in commute times compared to the broader state data, warranting further statistical analysis to determine significance. **Text Transcription for Educational Website:**c. Based on your p-value, write out a conclusion, being sure to include justification.d. The data did not come from a random sample; rather it came from a convenience sample of people to whom the student had access. Given that information, to what population do you think we can generalize our results?

Answered: Image /qna-images/answer/a9fe1d48-5233-460b-bb7a-cb96abd10558.jpg

Answered: c. Based on your p-value, write out a…

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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What would be your decision? A. Reject the null hypothesis. B. do not reject the null hypothesis. C. Check the alternative hypothesis. D. Where is an insufficient data to make a decision.
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To investigate how people communicate over the internet, a researcher had subjects write messages in an online forum. She split her sample of 76 participants into young adults and older adults based on their age. She then compared how many emojis and emoticons the young adults used in their messages compared to the older adults. What is the best test to analyze the results of this study? One Sampe Z Test One Sample t Test Independent Samples t Test Dependent Samples t Test
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Read the following problem description then choose the correct null and alternative hypothesis. A skeptical paranormal researcher claims that the proportion of Americans that have seen a UFO is less than 1 in every one thousand.
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The success of an airline depends heavily on its ability to provide a pleasant customer experience. One dimension of customer service on which airlines compete is on-time arrival. The file LateFlights contains a sample of data from delayed flights showing the number of minutes each delayed flight was late for two different airlines, Delta and Southwest. Click on the datafile logo to reference the data. DATA file Southwest 120 29 67 89 115 a. Formulate the hypotheses that can be used to test for a difference between the population mean minutes late for delayed flights by these two airlines. 141 = population mean minutes late for delayed Delta flights 142 = population mean minutes late for delayed Southwest flights Ho 141 142 : Delta 113 36 113 82 26 - Select your answer - 0 Southwest 49 56 31 110 141 df = p-value = We - Select your answer-reject Ho. Delta 142 7 39 90 94 (rounded to 2 decimals) (rounded to 2 decimals) Southwest 66 131 125 26 31 H₂H₂ - Select your answer - 0 b. What is…
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