Consider the following measures based on independently drawn samples from normally distributed populations: (You may find ituseful to reference the appropriate table: chi-square table or F table)Sample 1: s = 241, and n1 = 26Sample 2: s = 220, and n2 = 16a. Construct the 95% interval estimate for the ratio of the population variances. (Round "F" value and final answers to 2 decimalplaces.)Confidence intervaltob. Using the confidence interval from Part (a), test if the ratio of the population variances differs from 1 at the 5% significance level.The 95% confidence intervalthe value 1. Thus, weconclude that the population variances differ at the 5% significance level.

There are two independent samples which follows F-distribution. We have to construct 95% confidence…

Answered: Consider the following measures based…

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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The length of preg…
Answer the last question
Question 1. Greater than or Less than. Question 2. IS or IS NOT.
Choose the appropriate statistical test. When computing, be sure to round each answer as indicated. A dentist wonders if depression affects ratings of tooth pain. In the general population, using a scale of 1-10 with higher values indicating more pain, the average pain rating for patients with toothaches is 6.8. A sample of 30 patients that show high levels of depression have an average pain rating of 7.1 (variance 0.8). What should the dentist determine? 1. Calculate the estimated standard error. (round to 3 decimals). [st.error] 2. What is thet-obtained? (round to 3 decimals). 3. What is the t-cv? (exact value) 4. What is your conclusion? Only type "Reject" or Retain"
Also included in question find estimated variance of errors, estimated variance of slope, and 90% and 95% confidence intervals for slope. Thank you so much
Step 1 of 3. State the null and alternative hypotheses for the test. Step 2 of 3. Compute the value of the test statistic. Round your answer to three decimal places Step 3 of 3. Draw a conclusion and interpret the decision.
Given Samples A and B below Sample A: 2.0 Sample B: 4.3 2.8 4.5 O a. Calculate the mean and standard deviation for each sample. Sample A: XA = Sample B: XB = ; SB = Round to two decimal places if necessary b. Calculate the coefficient of variation for each sample. Sample A: CVA = ; SA = _% 4.2 4.2 4.3 4.0 Sample B: CVB Round to two decimal places if necessary c. Which sample is more variable? o Sample A Sample B Neither sample is more variable than the other 4.4 4.3 3.7 4.9 _% 3.6 2.6 2.8 2.2 2.3 4.1
ANSWER PART B ONLY
6 Given the following data: the first quartile Q1 =(17) and Inter-quartile Range (IQR = 117); Then the third quartile Q3 equals: (Write only the number) Answer:
Exhibit 10-32 The following information was obtained from matched samples. (Hint: to calculate differences use After - Before.) Individual 1 2 3 4 5 1.776 to 3.776 0.1796 to 5.02021 -2.776 to 2.776 Before 0 to 3.776 2 4 7 6 3 After 4 10 Refer to Exhibit 10-32. The 95% confidence interval for the mean of the population of differences is 9 7 5
Give the value of the following;a. meanb. medianc. moded. range (using midpoint)e. variancef. mean absolute deviation (MAD)g. standard deviationh. coefficient of variation

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