AnswersProbability and Statistics with Applications Honors Sem-2-FL-1210300 2024-2025Significance Tests and Confidence IntervalsQuestion 8
8
QuizMultiple Choice
Significance Tests and Confidence Intervals
Question 8 • Probability and Statistics with Applications Honors Sem-2-FL-1210300 (2024-2025)
A study was conducted to determine the true mean weight of all packages shipped by a company. A 90% confidence interval for the true mean weight is 4.9 pounds to 14.8 pounds. Based upon this interval, what decision should be made about the hypotheses: =5 versus 5 where μ = the true mean weight of all packages at α = 0.10?
Answer
A
The null hypothesis should be rejected, because 5 falls inside the 90% confidence interval.B
The null hypothesis should be rejected, because 5 falls outside the 90% confidence interval.C
The null hypothesis should not be rejected, because 5 falls inside the 90% confidence interval.D
The null hypothesis should not be rejected, because 5 falls outside the 90% confidence interval.