Assume that the flight time for a United Airlines flight from Philadelphia to Dallas follows the uniform probability distribution between 210 and 250 minutes. What is the mean of this distribution?
A) 230
B) 235
C) 240
D) 245
Q. 2The appropriate test statistic for the blocking factor for a randomized block ANOVA follows the F-distribution.
Indicate whether the statement is true or false
Q. 3The time that customers wait to be served at the delicatessen for a grocery store follows the uniform distribution between 0 and 7 minutes. What is the probability that a randomly selected customer will wait will be exactly 5 minutes at the deli?
A) 0.0
B) 0.2857
C) 0.4286
D) 0.7143
Q. 4The time that customers wait to be served at the delicatessen for a grocery store follows the uniform distribution between 0 and 7 minutes. What is the probability that a randomly selected customer will wait between 1 and 5 minutes at the deli?
A) 0.1429
B) 0.2857
C) 0.4286
D) 0.5714
Q. 5Including a blocking factor in the ANOVA procedure can sometimes hinder the ability to correctly detect a difference in population means.
Indicate whether the statement is true or false
Q. 6The Department of Transportation would like to test the hypothesis that the average age of cars on the road is less than 12 years. A random sample of 45 cars had an average age of 10.6 years.
It is believed that the population standard deviation for the age of cars is 4.1 years. The Department of Transportation would like to set = 0.05. The critical value for this hypothesis test would be ________.A) 1.28
B) 1.645
C) 2.575
D) 1.96
Q. 7With one-way ANOVA, we will have a greater chance of rejecting the null hypothesis when more variation in the data is due to the SSB rather than the SSW.
Indicate whether the statement is true or false
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