6. Many states are carefully considering steps that would help them collect sales taxes itemspurchased through the internet. How many randomly selected sales transactions must besurveyed to determine the percentage that transpired over the Internet? Assume that wewant to be 98% confident that the sample percentage is within two percentage points ofthe true population percentage for all sales transactions.

From the provided information, Confidence level = 98% Margin of error (E) = 0.02 Since, no prior…

Answered: 6. Many states are carefully…

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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7. You may need to use the appropriate appendix table or technology to answer this question. The gap between the earnings of men and women with equal education is narrowing but has not closed. Sample data for seven men and seven women with bachelor's degrees are as follows. Data are shown in thousands of dollars. Men Women 31.6 44.5 86.5 46.4 56.2 30.9 68.2 41.5 47.2 36.8 59.9 50.5 66.3 24.8 (a) What is the median salary (in $) for men? For women? (b) Use ? = 0.05 and conduct the hypothesis test for identical population distributions. State the null and alternative hypotheses. - H0: The two populations of salaries are not identical.Ha: The two populations of salaries are identical - H0: Median salary for men − Median salary for women > 0Ha: Median salary for men − Median salary for women = 0 - H0: Median salary for men − Median salary for women ≥ 0 Ha: Median salary for men − Median salary for women < 0 - H0: The two populations of salaries are…
The North American Free Trade Agreement (NAFTA) enacted in 1994 is a trilateral trade agreement signed by the United States, Canada and Mexico. This trade agreement has been controversial since its inception and Americans remain split on the issue. In a Gallup Poll conducted February 1-5, 2017, 448 out of 973 randomly selected Americans aged 18 or older stated that they believed that NAFTA was bad for the United States. a. Find the point estimate for the proportion of Americans who believe that NAFTA was bad for the United States. Round your answer to 4 decimal places. b. Find the margin of error for a 95% confidence interval. Round your answer to 4 decimal places. c. Construct the 95% confidence interval for the proportion of Americans who believe that NAFTA was bad for the United States. Enter your answer as an open interval of the form (a,b) and round to 3 decimal places. d. Can you conclude that more than half of Americans believe that NAFTA was bad for the United States? No, the…
When writing the participant section for your formal report, you include only information that directly describes your participants, and do not include information on measures they have completed. True or false
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The North American Free Trade Agreement (NAFTA) enacted in 1994 is a trilateral trade agreement signed by the United States, Canada and Mexico. This trade agreement has been controversial since its inception and Americans remain split on the issue. In a Gallup Poll conducted February 1-5, 2017, 447 out of 971 randomly selected Americans aged 18 or older stated that they believed that NAFTA was bad for the United States. 1.Find the point estimate for the proportion of Americans who believe that NAFTA was bad for the United States. Round your answer to 4 decimal places. 2.Find the margin of error for a 95% confidence interval. Round your answer to 4 decimal places. 3.Construct the 95% confidence interval for the proportion of Americans who believe that NAFTA was bad for the United States. Enter your answer as an open interval of the form (a,b) and round to 3 decimal places.
Violent crimes include rape, robbery, assault, and homicide. The following is a summary of the violent-crime rate (violent crimes per 100,000 population) for all states of a country in a certain year. Complete parts (a) through (d). Q1=273.8, Q2=388.5, Q3=529.1 (a) Provide an interpretation of these results. Choose the correct answer below. A. 25% of the states have a violent-crime rate that is 273.8 crimes per 100,000 population or less. 50% of the states have a violent-crime rate that is 388.5 crimes per 100,000 population or less. 75% of the states have a violent-crime rate that is 529.1 crimes per 100,000 population or less. B. 25% of the states have a violent-crime rate that is 273.8 crimes per 100,000 population or more. 50% of the states have a violent-crime rate that is 388.5 crimes per 100,000 population or more. 75% of the states have a violent-crime rate that is 529.1 crimes per 100,000 population or more. C. 75% of the…
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1. Explain the differences between a sample and a population.

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