Zoe also has a record of the time for her to walk from the State Library to the PeterHall Building, as follows:320.3 23.0 19.4 15.3 20.0 20.3 21.6 19.6Assuming a normal distribution N(µy , o}) for these observations, please answer thefollowing:(d) Calculate a 95% confidence interval for µx – Hy by assuming that of = ož.(e) Calculate a 95% confidence interval for µx – Hy by assuming that o toz.(f) Calculate a 95% confidence interval for o/o}.(g) (R) Calculate a 95% confidence interval for o/o3, using the R function var.test ().

Answered: Image /qna-images/answer/696c41c7-6705-47b4-a172-3219a710031f.jpg

Answered: 20.3 23.0 19.4 15.3 20.o 20.3 21.6 19.6…

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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A survey of 64 companies revealed that the median price charged for a certain trial was $13 with a standard deviation $7 do these data provide sufficient evidence to indicate that the population mean is greater than $11. Consider the significance of 10%. 1. The parameter of interest is:2. The hypotheses for this test are:3. The calculated test statistic is:4. The critical region is:5. Draw the critical zone (make decision):6. It can be concluded that:
Please help me solve part A on statcrunch, please and thank you! The test statistic of z=−3.07 is obtained when testing the claim that p<0.62. a. Using a significance level of α=0.01, find the critical value(s). b. Should we reject H0 or should we fail to reject H0? Click here to view page 1 of the standard normal distribution table. Click here to view page 2 of the standard normal distribution table. a. The critical value(s) is/are z=negative ______________???????? (Round to two decimal places as needed. Use a comma to separate answers as needed.) b. Choose the correct conclusion below. A. Reject H0. There is not sufficient evidence to support the claim that p<0.62. B. Reject H0. There is sufficient evidence to support the claim that p<0.62. Your answer is correct. C. Fail to reject H0. There is not sufficient evidence to support the claim that p<0.62. D. Fail to reject H0. There is sufficient evidence to…
When a sample contains 100 or more cases, what is the correct probability distribution to use?
A nutritionist claims that the mean tuna consumption by a person is 3.3 pounds per year. A sample of 70 people shows that the mean tuna consumption by a person is 3.1 pounds per year. Assume the population standard deviation is 1.05 pounds. At a = 0.06, can you reject the claim? Ha: p> 3.1 H3: µs3.1 H, µ#3.3 a (b) Identify the standardized test statistic. z= - 1.59 (Round to two decimal places as needed.) (c) Find the P-value. 0.112 (Round to three decimal places as needed.) (d) Decide whether to reject or fail to reject the null hypothesis. O B. Fail to reject Ho. There is not sufficient evidence to reject the claim that mean tuna consumption is equal to 3.3 pounds. A. Reject Ho- There is sufficient evidence to reject the claim that mean tuna consumption is equal to 3.3 pounds. O C. Fail to reject Ho. There is sufficient evidence to reject the claim that mean tuna consumption is equal to 3.3 pounds. O D. Reject Ho There is not sufficient evidence to reject the claim that mean tuna…
Please do a, e, and f only
You wish to test the following claim (Ha) at a significance level of a = 0.10. 51.3 Ηο:μ Ha:μ< 51.3 You believe the population is normally distributed, but you do not know the standard deviation. You obtain the following sample of data: data 56 49.5 56.8 48.9 55.7 55.7 What is the test statistic for this sample? (Report answer accurate to 3 decimal places.) test statistic = What is the P-value for this sample? (Report answer accurate to 3 decimal places.) P-value =
You wish to test the following claim (Ha) at a significance level of a = 0.02. H.: µ = 68.4 Ha:u 68.4 You believe the population is normally distributed and you know the standard deviation is o = 11.3. You obtain a sample mean of M = 72.1 for a sample of size n = 64. What is the critical value for this test? (Report answer accurate to three decimal places.) critical value = ± What is the test statistic for this sample? (Report answer accurate to three decimal places.) test statisticC = The test statistic is... O in the critical region O not in the critical region This test statistic leads to a decision to... O reject the null O accept the.null O fail to reject the null As such, the final conclusion is that... O There is sufficient evidence to warrant rejection of the claim that the population mean is no equal to 68.4. O There is not sufficient evidence to warrant rejection of the claim that the population mean is
You wish to test the following claim (Hα) at a significance level of α=0.02 Ho : μ = 65.6 Hα : > μ = 65.6 You believe the population is normally distributed and you know the standard deviation is σ=17.7. You obtain a sample mean of M=69.9 for a sample of size n=68. What is the test statistic for this sample? What is the p-value for this sample? The p-value is less than, greater than or equal to α? This test statistic leads to a decision to... The final conclusion is...
4
You wish to test the following claim (H) at a significance level of a = 0.1. H.:µ = 80.4 Haiu < 80.4 You believe the population is normally distributed, but you do not know the population standard deviation You obtain a sample of sizen = 18 with a mean of M = 61.1 and a standard deviation of SD = 20.5. What is the critical value for this test? critical value = %3D Find the critical value from the ztable (https://ma336.qccmathcs.com/ztable.html) or the ttable(https://ma336.qccmathcs.com/ztable.html) What is the test statistic for this sample? (Report answer accurate to three decimal places.) test statistic = %3D The test statistic is... in the critical region not in the critical region This test statistic leads to a decision to... reject the null accept the null O fail to reject the null
0pavannn
Alpha equals 0.01 level of significance for the given sample data.

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