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The results of a question asked in a simple random survey are reported in the accompanying the data to complete parts (a) through (d) below We of cell phone bills

The results of a question asked in a simple random survey are reported in the accompanying the data to complete parts (a) through (d) below We of cell phone bills

MATLAB: An Introduction with Applications
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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The results of a question asked in a simple random survey are reported in the accompanying table. The ques the data to complete parts (a) through (d) below E Click the icon to view the table of cell phone bills. Yes, because there are several values that are more extreme than Q, or Qgg O No, because there are no values that are more extreme than Q1 or Qgg- O No, because there are no values that fall outside 1.5(IQR) of Q1 and Q3. (c) Based on the results to parts (a) and (b), explain why a large sample size might be desirable to construct a confidence interval for the mean monthly cell phone bill. Choose the correct answer below. O A. The results to parts (a) and (b) indicate that the underlying population is non-normal. Such populations require large sample sizes to construct valid confidence intervals. O B. The results to parts (a) and (b) indicate that the underlying population is normal. Such populations require large sample sizes to construct valid confidence intervals. O C. The results to parts (a) and (b) indicate that the sample size is small relative to the population size. Sample sizes must be large relative to the population size to construct valid confidence intervals. O D. The results to parts (a) and (b) indicate that the sample data are not independent. Dependent samples require large sample sizes to construct valid confidence intervals. (d) Construct and interpret a 99% confidence interval for the mean cost of a monthly cell phone bill. Select the correct choice below and fill in the answer boxes within your choice. (Round to two decimal places as needed. Use ascending order.) O A. There is a 99% probability that the mean monthly cell phone bill is between $ and $ B. We are 99% confident the mean monthly cell phone bill is between $ and $ Statcrunch Next 11:27
Transcribed Image Text:The results of a question asked in a simple random survey are reported in the accompanying table. The ques the data to complete parts (a) through (d) below E Click the icon to view the table of cell phone bills. Yes, because there are several values that are more extreme than Q, or Qgg O No, because there are no values that are more extreme than Q1 or Qgg- O No, because there are no values that fall outside 1.5(IQR) of Q1 and Q3. (c) Based on the results to parts (a) and (b), explain why a large sample size might be desirable to construct a confidence interval for the mean monthly cell phone bill. Choose the correct answer below. O A. The results to parts (a) and (b) indicate that the underlying population is non-normal. Such populations require large sample sizes to construct valid confidence intervals. O B. The results to parts (a) and (b) indicate that the underlying population is normal. Such populations require large sample sizes to construct valid confidence intervals. O C. The results to parts (a) and (b) indicate that the sample size is small relative to the population size. Sample sizes must be large relative to the population size to construct valid confidence intervals. O D. The results to parts (a) and (b) indicate that the sample data are not independent. Dependent samples require large sample sizes to construct valid confidence intervals. (d) Construct and interpret a 99% confidence interval for the mean cost of a monthly cell phone bill. Select the correct choice below and fill in the answer boxes within your choice. (Round to two decimal places as needed. Use ascending order.) O A. There is a 99% probability that the mean monthly cell phone bill is between $ and $ B. We are 99% confident the mean monthly cell phone bill is between $ and $ Statcrunch Next 11:27
ell phone bill last month? Express answers to the perIly. The results of a question asked in a simple random survey are r the data to complete parts (a) through (d) below. Table of cell phone bills Click the icon to view the table of cell phone bills. Cell phone bill ($) 44.80 103.55 70.00 (a) Draw a histogram of the data and comment on the shape. 56.54 0.00 60.00 75.23 80.00 100.41 186.06 67.08 50.08 85.78 144.97 Choose the correct histogram below. 167.38 55.16 182.00 42.06 29.89 87.18 70.26 80.22 O A. 200.05 81.00 64.80 134.91 30.01 93.00 153.81 165.56 89.75 103 38 205.81 99.47 24 60.04 20.08 14.98 150.04 54.74 99.88 34.96 78.68 60.00 88.64 108.84 433.44 110.27 98.18 20.07 44.88 50.00 249.64 54.82 150.00 169.38 35.90 101.00 164.19 130.34 149.96 70.06 100.10 149.59 59.88 200.18 79.40 10.04 111.03 55.17 51.00 49.91 50.10 74.63 0.00 60 320 480 480 Cell phone bil (5) 0. 160 320 phone bi $) 135.04 29.91 31.95 144.69 113.31 150.08 25.07 100.06 107.00 66.00 53.12 50.09 69.74 150.57 82.89 79.74 52.72 Comment on the shape of the histogram. Choose the correct an 67.76 198.07 0.00 O A. The histogram is symmetric and bell-shaped. 102.79 OB. The histogram is skewed right. Print Done Next Statcrunch 11:25 kauanbay
Transcribed Image Text:ell phone bill last month? Express answers to the perIly. The results of a question asked in a simple random survey are r the data to complete parts (a) through (d) below. Table of cell phone bills Click the icon to view the table of cell phone bills. Cell phone bill ($) 44.80 103.55 70.00 (a) Draw a histogram of the data and comment on the shape. 56.54 0.00 60.00 75.23 80.00 100.41 186.06 67.08 50.08 85.78 144.97 Choose the correct histogram below. 167.38 55.16 182.00 42.06 29.89 87.18 70.26 80.22 O A. 200.05 81.00 64.80 134.91 30.01 93.00 153.81 165.56 89.75 103 38 205.81 99.47 24 60.04 20.08 14.98 150.04 54.74 99.88 34.96 78.68 60.00 88.64 108.84 433.44 110.27 98.18 20.07 44.88 50.00 249.64 54.82 150.00 169.38 35.90 101.00 164.19 130.34 149.96 70.06 100.10 149.59 59.88 200.18 79.40 10.04 111.03 55.17 51.00 49.91 50.10 74.63 0.00 60 320 480 480 Cell phone bil (5) 0. 160 320 phone bi $) 135.04 29.91 31.95 144.69 113.31 150.08 25.07 100.06 107.00 66.00 53.12 50.09 69.74 150.57 82.89 79.74 52.72 Comment on the shape of the histogram. Choose the correct an 67.76 198.07 0.00 O A. The histogram is symmetric and bell-shaped. 102.79 OB. The histogram is skewed right. Print Done Next Statcrunch 11:25 kauanbay
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