Answered: When determining sample size for a…

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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9. Another term for the 75th percentile is the: A. lower quartile B. 50th percentile C. average D. upper quartile 10. A data set has the following measures of central location: Mean = 42, Median = 47 and Mode = 51. The data is said to be: A. Skewed to the left B. Skewed to the right C. Symmetrical D. Linear
Use the accompanying data set to complete the following actions. a. Find the quartiles. b. Find the interquartile range. c. Identify any outliers. 55 61 63 60 63 56 56 60 55 57 64 54 59 65 77 a. Find the quartiles. The first quartile, Q1, is| The second quartile, Q2, is : The third quartile, Q3, is (Type integers or decimals.)
Following is a list of z-scores. Suppose you decide an outlier would be more than 2.0 standard deviations from the mean. Choose all z-scores that would be considered an outlier using this rule. Group of answer choices A.) z = 2.05 B.) z = -1.25 C.) z = -3.2 D.) z = 0 E.) z = 2.7
Answer the following questions in the picture below. Only the correct letter.
Handwritten
The concentration level of Zinc in milligrams in two types of soil was found to be as follows Soil A: 2.1 4.0 6.3 5.4 4.8 3.7 6.1 3.3 Soil B: 0.6 3.1 2.5 4.0 6.2 1.6 2.2 1.9 5.4 To check the claim that the medians of concentration level in the two soils were unequal, we conducted an appropriate test at and we found that the test statistics is equal to a. 57 b. 65 c. 47 d. None Decision a. we reject the claim b. we fail to reject the claim c. we can’t decide d. None
Use the accompanying data set to complete the following actions. a. Find the quartiles. b. Find the interquartile range. c. Identify any outliers. 57 60 57 64 62 64 58 64 64 59 54 56 55 59 82 0 a. Find the quartiles. The first quartile, Q,, is 57. The second quartile, Q,, is 59 . The third quartile, Q3, is 64. (Type integers or decimals.) b. Find the interquartile range. The interquartile range (IQR) is (Type an integer or a decimal.)
Given the following frequancy table, the sample mean ( ) is 1 2 3 12 13 15 10 4.
2. For the following information on a data set: Measurement Class .00- .75 .75-1.50 1.50-2.25 2.25-3.00 3.00-3.75 3.75-4.50 0.75 0.78 d) What proportion of the scores are in between 2.25 and 6.75? 0.63 Relative Freq. .02 .01 .03 .05 0.84 .10 .14 Measurement Class 4.50-5.25 5.25-6.00 6.00-6.75 6.75-7.50 7.50-8.25 8.25-9.00 9.00-9.75 Relative Freq. .19 .15 k .09 .05 .04 .01
If the current value for XI and Xu while using the Bi-section method are 4.1 and 5.3 respectively, then the corresponding approximate relative error : is .A O 6.97% .B 1.61% .C 12.77% .D can not tell .E None
4. Find the point estimate of the proportion of people who wear hearing aids if, in a random sample of 584 people, 30 people had hearing aids. O 0.051 O 0.052 O 0.053 O 0.054
Use the accompanying data set to complete the following actions. a. Find the quartiles. b. Find the interquartile range. c. Identify any outliers. 42 50 37 44 41 38 39 48 44 38 35 55 44 36 15 51 38 49 29 29 a. Find the quartiles. The first quartile, Q1, is _____. The second quartile, Q2, is ____. The third quartile, Q3, is ____. (Type integers or decimals.) b. Find the interquartile range. The interquartile range (IQR) is _____. (Type an integer or a decimal.) c. Identify any outliers. Choose the correct choice below. A. There exists at least one outlier in the data set at____. (Use a comma to separate answers as needed.) B. There are no outliers in the data set.

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When determining sample size for a proportion, we need to know p. If we have no prior information regarding this value, how