Null and Alternative Hypothisis
H0: The driver feel is not correct
H1: The driver feel is correct
Let the los be alpha = 0.05
Test Statistic:
Decision:
Thus we conclude that the driver feel is correct i.e. driver feels from experiences that his is very low.
OUPLICATIIULILLIOLI 12. Interstate Speeds It has been reported that the stan- dard deviation of the speeds...
Interstate Speeds It has been reported that the standard deviation of the speeds of drivers on Interstate 75 near Findlay, Ohio, is 8 miles per hour for all vehicles. A driver feels from experience that this is very low. A survey is conducted, and for 26 drivers the standard deviation is 8.8 miles per hour. At a=0.01 , is the driver correct? Assume the variable is normally distributed. Find the null and alternative hypothesis, Find the critical value.(c)Compute the test...
Penndot claims that the standard deviation of the speed of drivers in the streets of the Historical Downtown of the Greater Bradford Metropolitan Area is 8 miles per hour for all vehicles. Your uncles and aunts, who have a responsibility to uphold the virtues of speeding feel that Penndot’s estimate is low. A survey is conducted by UPB students and for 50 randomly selected drivers, the standard deviation is 10.5 miles per hour. Is Penndot’s claim believable ? Is this...
3. The distribution of passenger vehicle speeds on the Interstate 5 Freeway is nearly normal with a mean of 72.6 mi/hr and a standard deviation of 4.78 mi/hr. (Use the Normal Table). Round all percents to the nearest tenth. What percent of passenger vehicles travel slower than 80 miles per hour? a. b. What percent of passenger vehicles travel between 60 and 80 miles per hour? How fast do the fastest 5% of passenger vehicles travel? C. d. The speed...
1. A hypothetical investigation on rider satisfaction with a particular public transit system serving commuting residents of British California (BC) and Prince Edward’s County (PEC) offers some interesting findings. The proportion of commuters from BC that indicated low satisfaction with the transit system’s service in the 2018 calendar year was 65 percent, and the proportion from PEC was 70 percent. These point estimates were based on samples of 5,380 BC commuters and 6,810 PEC commuters, whose system-using commuters number in...
What happened on United flight 3411?What service expectations
do customers have of airlines such as United and How did these
expectations develop over time?
Thank You!
In early April 2017, United Airlines (United), one of the largest airlines in the world, found itself yet again in the middle of a service disaster this time for forcibly dragging a passenger off an overbooked flight. The incident was to become a wake-up call for United, forcing it to ask itself what to...