2. According to the National Association of Home Builders, the average cost of building ahome in the Northeast is $ 117.91 per square foot. A random sample of 36 new homesindicated that the mean cost was $122.57 and the standard deviation was $20. Can it beconcluded that the mean cost differs from $117.91, using 0.10 level of significance?i. Ho:Ha:ii. Do a -test at aiii. Decision Rule: Reject Ho ifiv. Computations

A random sample of 36 new homes with mean 122.57 and standard deviation 20 ; n=36…

Answered: 2. According to the National…

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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6. In a survey of 1000 people, mean amount of money they spend on buying Starbuck's coffee per month is $19.40. Use z= 1.96 and o =45 a. What is the margin of error for this study? b. Give an interval that is likely to contain the exact mean amount of money people spend on Starbucks.
31)
A study analyzed the sustainability behaviors of CPA corporations. The level of support for corporate sustainability (measured on a quantitative scale ranging from 0 to 160 points) was obtained for each in a sample of 984 senior managers at CPA firms. The CEO of a CPA firm claims that the true mean level of support for sustainability is 66. Complete parts a through e. What is a Type II error in this problem? A. A Type II error would be to conclude that the true mean level of support for sustainability is 66 when, in fact, the mean is not equal to 66. B. A Type II error would be to conclude that the sample mean level of support for sustainability is less than 66 when, in fact, the sample mean is greater than 66. C. A Type II error would be to conclude that the true mean level of support for sustainability is not 66 when, in fact, the mean is equal to 66. D. A Type II error would be to conclude that the sample mean level of support for…
a. Develop a hypothesis test that can be used to determine whether the mean annual consumption in Webster City is higher than the national mean. Ho: $21.5 Ha: >21.5 b. What is a point estimate of the difference between mean annual consumption in Webster City and the national mean? (2 decimals) c. At a = 0.01, test for a significant difference by completing the following. Calculate the value of the test statistic (2 decimals). The p-value is Reject the null hypothesis? (4 decimals) Yes v What is your conclusion? Conclude the population mean consumption of milk in Webster City is greater tha
An instructor wanted to know if his students are better at math or writing. He had students take both a math and then a writing test and he compared the results using SPSS. He found the following results: ( look at graphs ) a. What test was done?b. Report results in APA style.
4. There are 35 students in a class. Fifteen of them are men and 20 of them are women. The mean height of the men is 69.65 inches, and the mean height of all 35 students is 67.18 inches. What is the mean height of the women?
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1. what these statistics tell you about the skewness of the variables.
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2. According to the National Association of Home B home in the Northeast is $ 117.91 per square foot. indicated that the mean cost was $122.57 and the concluded that the mean cost differs from $117.91, us i. Ho: Ha: ii. Doa -test at o a iii. Decision Rule: Reject Ho if iv. Computations