part 1.
An independent measures study has df = 48. How many totalparticipants were in the study?
a. 24
b. 46
c. 50
d. There is not enough information

part 2.

A commonly cited standard for one-way length (duration) ofschool bus rides for elementary school children is 30 minutes.

A local government office in a rural area conducts a study todetermine if elementary schoolers in their district have a longeraverage one-way commute time. If they determine that the averagecommute time of students in their district is significantly higherthan the commonly cited standard they will invest in increasing thenumber of school busses to help shorten commute time. What would aType 2 error mean in this context?

a. The local government decides that the average commute time is30 minutes.

b. The local government decides that the data provide convincingevidence of an average commute time higher than 30 minutes, whenthe true average commute time is in fact 30 minutes.

c. The local government decides that the data donot provide convincing evidence of an average commute timehigher than 30 minutes, when the true average commute time is infact higher than 30 minutes.

d. The local government decides that the data donot provide convincing evidence of an average commute timedifferent than 30 minutes, when the true average commute time is infact 30 minutes.