The data for a random sample of 10 paired observationsare shown in the table below.Sample fromPopulation 1Sample fromPopulation 2Pair1924252731365253493455346.7596651205584717910511234nor∞ a. If you wish to test whether these data are sufficient toindicate that the mean for population 2 is larger thanthat for population 1, what are the appropriate null andalternative hypotheses? Define any symbols you use.b. Conduct the test, part a, using a = .10.c. Find a 90% confidence interval for µd. Interpret thisresult.d. What assumptions are necessary to ensure the validityof this analysis?

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Answered: a. If you wish to test whether these…

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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Next Question A statistics instructor randomly selected four bags of oranges, each bag labeled 10 pounds, and w that the distribution of weights is Normal. Find a 95% confidence interval for the mean weight of all bags of oranges. Use technology for your calculations. Answer parts a and b ley weighed 9.3, 9.1, 9.5, and 9.6 pounds. D Assume below. a. Choose the correct interpretation of the confidence interval below and, if necessary, fill in the answer boxes to complete your choice. O A. We are 95% confident that the sample mean is between and O B. There is a 95% chance that all intervals will be between and O C. We are 95% confident the population mean is between and O D. The requirements for constructing a confidence interval are not satisfied. (Type integers or decimals rounded to the nearest thousandth as needed. Use ascending order.) b. Does the interval capture 10 pounds? Is there enough evidence to reject the null hypothesis that the population mean weight is 10 pounds? Explain…
do fast ..with explanation both require..
You are interested in finding a 99% confidence interval for the average commute that non-residential students have to their college. The data below show the number of commute miles for 12 randomly selected non-residential college students. Round answers to 3 decimal places where possible. 18 20 20 24 5 28 10 13 5 24 11 11 b. With 99% confidence the population mean commute for non-residential college students is between ? and ? miles. c. If many groups of 12 randomly selected non-residential college students are surveyed, then a different confidence interval would be produced from each group. About ? percent of these confidence intervals will contain the true population mean number of commute miles and about ? percent will not contain the true population mean number of commute miles.
9 Next TWO questions are related to the following sample data: Jane, a statistics student, wants to build a confidence interval with a 95% confidence level for the mean commuting distance of all IUPUI students. She selects a random sample of students and obtains the following commuting distance data. The data show the distance from the student residence to the campus in miles). b C d 11 b 8:19 1 d Done 12 8.6 23 8.3 9.1 22.6 8.2 14 12.3 14.9 9.4 16.5 12.7 14.9 0.395 0.359 0.326 19 48 10.2 10.7 4.7 14.4 20.1 28.5 29.6 18 7.5 13.1 16 12.4 17.3 16.7 11.9 61 71 83 97 The standard error of the mean is, 0.434 14.93 14.59 E270 T5 Armour, Tori.xlsx 14.24 13.67 29 38 31 39 10.8 20.9 13.5 17.9 11.1 35.4 34.1 33.0 31.9 13 13.2 10.1 14.1 12.6 11.5 12.2 13.2 14.7 19.7 19.3 38 26 30 12.9 14.7 17.4 13.1 12.8 10.9 10.3 21.2 7.6 8.2 The confidence interval with a 95% confidence level is 26.1 27.4 10 The interval estimate is, 11.83 12.18 12.52 13.10 Next two questions are related to the following sample…
4..
a. interpret the corresponding 95% confidence intervals for both Birth weight and Age. b. What is the predicted average SBP of an infant born with birth weight 8lbs (128oz) measured at 3 days old? c. Calculate the Pearson correlation between Age and Birth weight, and test if this correlation is significant at the 0.05 level. Does this answer surprise you, why or why not?
For the data set below, calculate r, r2, and a 95 percent confidence interval in r units. Then write a one- to two sentence conclusion statement that includes whether the null hypothesis was rejected or not and whether there is a strong /weak/no relationship. Assume a two tailed hypothesis and α = .05. Case 1 Case 2 Case 3 Case 4 Case 5 Case 6 X 1.05 1.15 1.30 2.00 1.75 1.00 Y 2 2 3 4 5 2
4.A prior study(by Pew Research 2021)found that 35 out of 50 randomly selected US adults between the ages of 18 to 29 use (or have used) Instagram. Construct a 99% confidence interval for the population proportion of US adults between the ages of 18 to 29 use (or have used) Instagram. (round to three decimal places) a.Identify the following: X, N, P b.Which distribution should you use for this problem? c.What is the corresponding critical value for a 99% confidence interval? d.Calculate the margin of error (3 decimal places) e.Construct a 99% confidence interval f. Interpret the interval.
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Next question If a sample proportion is 0.68, which of the following could be a 90% confidence interval for the population proportion? ..... Select all that apply. A. Lower bound: 0.59; Upper bound: 0.77 B. Lower bound: 0.66; Upper bound: 0.70 OC. Lower bound: 0.50; Upper bound: 0.77 D. Lower bound: 0.77; Upper bound: 0.95 E. Lower bound: 0.67; Upper bound: 0.71 F3 F4 F5 F7 F8 24 4. %23 2 3. 6. Left control option command
Answer all parts of number 2 and show your work.

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