An airline observes a random sample of its flights on a particular route. The 95%confidence interval for the mean time (in minutes) for all flights on this route is calculatedto be (47.0,53.0). Which of the following is NOT true? (Show calculations if needed) (A) At the 95% confidence level, the true mean flight time is within 3.0 minutes of thesample mean flight time. (B) If the true mean flight time were outside the interval (47.0,53.0), then the sample meanthat was found would be very unlikely. (C) Approximately 2.5% of flight on this route are longer than 53 minutes. (D) We are 95% confident that the true mean flight time is between 47.0 and 53.0 minutes. (E) If many random samples of the same size were taken and the 95% co
Contingency Table
A contingency table can be defined as the visual representation of the relationship between two or more categorical variables that can be evaluated and registered. It is a categorical version of the scatterplot, which is used to investigate the linear relationship between two variables. A contingency table is indeed a type of frequency distribution table that displays two variables at the same time.
Binomial Distribution
Binomial is an algebraic expression of the sum or the difference of two terms. Before knowing about binomial distribution, we must know about the binomial theorem.
An airline observes a random sample of its flights on a particular route. The 95%confidence interval for the
(A) At the 95% confidence level, the true mean flight time is within 3.0 minutes of thesample mean flight time.
(B) If the true mean flight time were outside the interval (47.0,53.0), then the sample meanthat was found would be very unlikely.
(C) Approximately 2.5% of flight on this route are longer than 53 minutes.
(D) We are 95% confident that the true mean flight time is between 47.0 and 53.0 minutes.
(E) If many random samples of the same size were taken and the 95% confidence intervalswere calculated, then 95% of the confidence intervals would contain the true mean flighttime.
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