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The correct interpretation of the confidence interval is that we are 99% confident that the interval contains the Select an answer ✓ length of commercials made since the year 2010. Select an answer sample proportion A similar study was condu actual mean average length of all com sample mean actual proportion nterval of (21.5, 29.9). Can we claim the 2010 is at least 21.9? Beyond representative sampling, what assumptions are needed to satisfy the requirements for this problem? OX~binomial and at least 5 successes and failures OX~binomial, np > 5 and nq ≥ 5 OX~normal or n ≥ 30 OX~normal and n ≥ 30

The correct interpretation of the confidence interval is that we are 99% confident that the interval contains the Select an answer ✓ length of commercials made since the year 2010. Select an answer sample proportion A similar study was condu actual mean average length of all com sample mean actual proportion nterval of (21.5, 29.9). Can we claim the 2010 is at least 21.9? Beyond representative sampling, what assumptions are needed to satisfy the requirements for this problem? OX~binomial and at least 5 successes and failures OX~binomial, np > 5 and nq ≥ 5 OX~normal or n ≥ 30 OX~normal and n ≥ 30

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.3: Measures Of Spread
Problem 1GP
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What is the area under the standard normal curve between Z=-0.04 and Z=0.29?

  • 0.6141
  • 0.484
  • 1.0981
  • 0.33
  • 0.25
  • 0.1301
  • None of the above

2.  random sample of 40 commercials made since the year 2010 has an average of 24.9 seconds with a standard deviation of 9.6 seconds. What is the margin of error that corresponds to a 99% confidence interval for the average length of all commercials made since 2010?

  • 4.11
  • 4.1
  • 3.91
  • 4.106
  • None of the above

The correct interpretation of the confidence interval is that we are 99% confident that the interval contains the       length of commercials made since the year 2010.

A similar study was conducted and found an interval of (21.5, 29.9). Can we claim the average length of all commercials made since 2010 is at least 21.9?

  • Yes
  • No
  • Not enough information to determine this.

 

The correct interpretation of the confidence interval is that we are 99% confident that the interval contains the Select an answer ✓ length of commercials made since the year 2010. Select an answer sample proportion A similar study was condu actual mean average length of all com sample mean actual proportion nterval of (21.5, 29.9). Can we claim the 2010 is at least 21.9?
Transcribed Image Text:The correct interpretation of the confidence interval is that we are 99% confident that the interval contains the Select an answer ✓ length of commercials made since the year 2010. Select an answer sample proportion A similar study was condu actual mean average length of all com sample mean actual proportion nterval of (21.5, 29.9). Can we claim the 2010 is at least 21.9?
Beyond representative sampling, what assumptions are needed to satisfy the requirements for this problem? OX~binomial and at least 5 successes and failures OX~binomial, np > 5 and nq ≥ 5 OX~normal or n ≥ 30 OX~normal and n ≥ 30
Transcribed Image Text:Beyond representative sampling, what assumptions are needed to satisfy the requirements for this problem? OX~binomial and at least 5 successes and failures OX~binomial, np > 5 and nq ≥ 5 OX~normal or n ≥ 30 OX~normal and n ≥ 30
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