Consider the following set of ordered pairs.255298Xy4Calculate the coefficient of determination and test its significance using a = 0.05.Click the icon to view a partial ANOVA table.Click the icon to view a partial table of critical F-scores with 0.05 in the right tail of the distribution.58Calculate the coefficient of determination.R² = (Round to three decimal places as needed.)Partial ANOVAd.f.Regression 1Error3Total4PrintANOVASS32.2124.58836.8MSDone- X

The independent variable is x.The dependent variable is y.We have to find the coefficient of…

Answered: Consider the following set of ordered…

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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kshe The height of women ages 20-29 is normally distributed, with a mean of 64.6 inches. Assume o = 2.9 inches. Are you more likely to randomly select 1 woman with a e score les (fo height less than 66.4 inches or are you more likely to select a sample of 30 women with a mean height less than 66.4 inches? Explain. E . Click the icon to view page 1 of the standard normal table. signme ee score A Click the icon to view page 2 of the standard normal table. radeboc What is the probability of randomly selecting 1 woman with a height less than 66.4 inches? e score mail O (Round to four decimal places as needed.) What is the probability of selecting a sample of 30 women with a mean height less than 66.4 inches? Text (Round to four decimal places as needed.) Accessibl Resource Are you more likely to randomly select 1 woman with a height less than 66.4 inches or are you more likely to select a sample of 30 women with a mean height less than 66.4 inches? Choose the correct answer below. Tools…
1. Comment on the shape of the distribution. 2. Use the empirical rule to state the percentage of annual sales between 1255 and 9181(millions of dollars) 3. Based on the z score, is the highest sale, $14138 (in millions) an outlier? Explain
Explain how to find the critical values for a t-distribution. LOADING... Click the icon to view the t-distribution table. Question content area bottom Part 1 Give the first step. Choose the correct answer below. A. Identify the level of significance 1−α and the degrees of freedom, d.f.=n. B. Identify the level of significance α and the degrees of freedom, d.f.=n−1. C. Identify the level of significance α2 and the degrees of freedom, d.f.=n−1. D. Identify the level of significance 1−α2 and the degrees of freedom, df=n
Data were collected on the heights of singers' and are summarized and displayed below. Does average height differ by voice? mean sd alto 64.88571 2.794653 35 bass 70.71795 2.361408 39 soprano 64.25000 1.872737 36 tenor 69.15000 3.216323 20 bass tenor alto soprano (a) Are the conditions for using the F-distribution satisfied? Yes No Height (inches) 60 65 70 75
a. Use a = 0.10 to test for a statistically significantly difference between the population means for first- and fourth-round scores. What is the p-value? t-value (to 3 decimals) Degrees of freedom p-value is greater than 0.20 What is your conclusion? There is no significant difference between the mean scores for the first and final rounds. b. What is the point estimate of the difference between the two population means? (to 2 decimals) For which round is the population mean score lower? First round c. What is the margin of error for a 90% confidence interval estimate for the difference between the population means? (to 3 decimals) Could this confidence interval have been used to test the hypothesis in part (a)? Yes Explain. Use the point of the difference between the two population means and add and subtract this MOE. If zero is in the interval the difference is not statistically significant. If zero is not in the interval the difference is statistically significant.
Only round final answer to 2 decimal places.
A company manufactures printers and fax machines at plants located in Atlanta, Dallas, and Seattle. To measure how much employees at these plants know about quality management, a random sample of 6 employees was selected from each plant and the employees selected were given a quality awareness examination. The examination scores for these 18 employees are shown in the following table. The sample means, sample variances, and sample standard deviations for each group are also provided. Managers want to use these data to test the hypothesis that the mean examination score is the same for all three plants. Sample mean Sample variance Sample standard deviation Plant 1 Atlanta 84 76 81 76 70 81 78 25.2 5.02 Plant 2 Plant 3 Dallas Seattle 72 74 72 74 70 88 75 42.8 6.54 60 64 62 68 76 66 66 32.0 5.66
Find the percentage of the total area under the standard normal curve between the following z-scores. z=1.44 and z=2.83 Click here for page 1 of the Areas under the Normal Curve Table Click here for page 2 of the Areas under the Normal Curve Table The percentage of the total area between z=1 44 and z=2.83 is% (Round to two decimal places as needed.)

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