Based on a sample of 80 men, 45% owned catsBased on a sample of 20 women, 50% owned catstest statistic =p-value =[three decimal accuracy][three decimal accuracy]

Answered: Image /qna-images/answer/2724bade-39c4-44ea-b65c-fbb98eaf3555.jpg

Answered: Based on a sample of 80 men, 45% owned…

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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Using the dotplot and the difference in mean distances from the samples, is there convincing evidence that the new golf ball travels farther than the original golf ball? A company that manufactures golf balls produces a new type of ball that is supposed to travel significantly farther than the company's previous golf ball. To determine this, 40 new-style golf balls and 40 original-style golf balls are randomly selected from the company's production line on a specific day. A golf pro randomly selects a ball, not knowing which type is chosen, and hits it. The difference in mean distances traveled (new - original) for the samples was 2.6 feet. Assuming there is no difference in distance traveled between the two types of golf balls, 200 simulated differences in sample means are O Yes, because a difference in mean distances of 2.6 feet or more occurred only 34 out of 200 times, meaning the difference is statistically significant. There is convincing evidence the riew golf ball travels…
12) Many graduate schools require applicants to take the GRE for admission. The mean GRE score worldwide is 149.7 with a standard deviation of 8.2. The recommended overall GRE score for admission at UC Berkeley is 153. Q) What proportion of students taking the GRE would be accepted by UC Berkeley just based on GRE scores?
1a) Randomly pick 5 numbers between 1 - 100 and pick 5 numbers, remember, no repeats of numbers then find the average of the test scores that correlate to it. This is your sample average. List your 5 numbers and write down your average. 1b)The actual mean of the scores is 63.52, how off were you? The standard deviation of the data is 25.606 (think about if these are your sample statistics or population parameters). 1c) Find your Margin of Error using 95% confidence. I gave you the population standard deviation so think about if it's a z-test or t-test.
The mean response time on a task for 10 younger children (6-10 y.o.a.) is 45 and the mean response time for 14 older children (11-16 y.o.a.) is 30. What is the weighted mean for the two groups (round to nearest tenth)? -> SHOW YOUR WORK ON YOUR SCRAP PAPER!!! 36.25 37.5 38.75 answer not listed- see work on scrap paper
Do wearable devices that monitor diet and physical activity help people lose weight? Researchers had 237 subjects, already involved in a program of diet and exercise, use wearable technology for 24 months. They measured their weight (in kilograms) before using the technology and 24 months after using the technology. (a) Explain why the proper procedure to compare the mean weight before using the wearable technology and 24 months after using the wearable technology is a matched pairs t test. Choose the correct explanation. A person's weight before and after wearing the device would not be independent; thus, the data from this before and after study should be analyzed using a matched pairs t test. O A person's weight before and after wearing the device would be independent; thus, the data from this before and after study should be analyzed using a matched pairs t test. O A person's weight before and after wearing the device would be independent; thus, the data from this before and after…
1) Randomly pick 5 numbers from the attached link (use a Random number generator - on Google/calculator) and say 1 - 100 and pick 5 numbers, remember, no repeats (kind of like the first discussion) then find the average of the test scores that correlate to it. This is your sample average. List your 5 numbers and write down your average. 2) The actual mean of the scores is 63.52, how off were you? The standard deviation of the data is 25.606 (think about if these are your sample statistics or population parameters). 3) Find your Margin of Error using 95% confidence. I gave you the population standard deviation so think about if it's a z-test or t-test.
what statsistical test, if any, would be typically associated with a bar gragh
Both margin of error are incorrect, the sample proportions are correct though
According to the American Freshman, the number of hours that college freshmen spendstudying each week is normally distributed with a mean of 7 hours and a standard deviationof 5.3 hours.a) What percent of college freshmen study between 7 and 12.3 hours per week?b) What percent of college freshmen study more than 17.6 hours per week?
The United States Census Bureau determined that the mean number of children in an American household is 1.86. Polls of 15 households were conducted in a certain city. 1) What is the number of degrees of freedom?
The number of incorrect answers on a true-false competency test for a random sample of 15 students were recorded as follows: 2, 1, 4, 0, 1, 2, 6, 0, 3, 3, 5, 3, 1, 4,3 and Find (a) the mean; (b) the median; (c) the mode. Show word count ▼ Next ( Previous

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Based on a sample of 80 men, 45% owned cats Based on a sample of 20 women, 50% owned cats test statistic = p-value = [three decimal accuracy] [three decimal accuracy]