In a survey of 2055 adults in a certain country conducted during a period of economic uncertainty, 59% thought that wages paid to workers in industry were too low. Terror was 7 percentage points with 90% confidence. For parts (a) through (d) below, which represent a reasonable interpretation of the survey results? For those thatnot reasonable, explain the flaw.www(a) We are 90% confident 59% of adults in the country during the period of economic uncertainty felt wages paid to workers in industry were too low.Is the interpretation reasonable?OA. The interpretation is reasonable.OB. The interpretation is flawed. The interpretation provides no interval about the population proportion.OC. The interpretation is flawed. The interpretation suggests that this interval sets the standard for all the other intervals, which is not true.OD. The interpretation is flawed. The interpretation indicates that the level of confidence is varying.(b) We are 83% to 97% confident 59% of adults in the country during the period of economic uncertainty felt wages paid to workers in industry were too low.Is the interpretation reasonable?OA. The interpretation is reasonable.B. The interpretation is flawed. The interpretation suggests that this interval sets the standard for all the other intervals, which is not true.ining: 01:11:02

Sample size=2055 Probability=0.59 Margin of error =0.07 We have to find the interpretation is…

Answered: (a) We are 90% confident 59% of adults…

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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Random Sample of Length of Eruption at Old Faithful 108 99 105 103 99 106 90 104 109 101 DES 105 106 103 120 108 102 103 110 104 113 100 109 102 100 116 101 111 110 102 105 110 95 107 Source: LaDonna Hansen, Park Curator 103 92 103 110 101 104 90 101 108 94 110
1. The position number w(letter) tells us where in the alphabet the given letter is located. For instance: w("b") = 2. Find the mean, median and population standard deviation for the vowel position numbers in the English alphabet.
b) The margin of error for the proportion of all adults who think things are on the wrong track for 90% confidence is 0.039. Would the margin of error be larger or smaller for 95% confidence? Explain. Choose the correct answer below. A. To be more confident, the interval needs to contain the true proportion more often, so the margin of error would be smaller. B. To be more confident, the interval needs to contain the true proportion more often, so the margin of error would be larger. O C. To be more confident, the interval needs to contain the true proportion less often, so the margin of error would be smaller. D. To be more confident, the interval needs to contain the true proportion less often, so the margin of error would be larger.
The Acme Company manufactures widgets. The distribution of widget weights is bell-shaped. The widget weights have a mean of 44 ounces and a standard deviation of 10 ounces. Use the Empirical Rule. Suggestion: sketch the distribution in order to answer these questions. a) 99.7% of the widget weights lie between and b) What percentage of the widget weights lie between 24 and 74 ounces? c) What percentage of the widget weights lie above 34? Question Help: DVideo D Post to forum E Calculator Submit Question
help with 2a-f
How can I analyze these graphs?
1. The mean age for licensed physicians in the United States is 51.5 years. A government officialrandomly selects 700 licensed physicians and computes their mean age to be 50.9 years.a. Which value is the parameter and which the statistic? b. Is it unreasonable that the mean of the 700 physicians is different than 51.5? Explain.
The Acme Company manufactures widgets. The distribution of widget weights is bell-shaped. The widget weights have a mean of 55 ounces and a standard deviation of 6 ounces.Use the Empirical Rule, finda) 99.7% of the widget weights lie between and b) What percentage of the widget weights lie between 43 and 73 ounces? %c) What percentage of the widget weights lie above 49 ?
The Acme Company manufactures widgets. The distribution of widget weights is bell-shaped. The widget weights have a mean of 46 ounces and a standard deviation of 9 ounces.Use the Empirical Rule.Suggestion: sketch the distribution in order to answer these questions.a) 99.7% of the widget weights lie between and b) What percentage of the widget weights lie between 28 and 73 ounces? %c) What percentage of the widget weights lie above 37 ? %
31. A class of 20 students took a test. The standard deviation of the test scores is 0. Which of the following statements must be true about the test scores? A. All of the test scores are zero. B. All of the test scores are positive. C. Half of the test scores are positive and half of the test scores are negative. D. All of the test scores are the same.

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