1) A researcher wishes to determine if a particular drug affects pilot reaction time to air traffic controller instructions

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1) A researcher wishes to determine if a particular drug affects pilot reaction time to air traffic controller instructions. The researcher has 10 pilots. The pilots are observed in normal performance and their reaction times are recorded. Then the pilots are administered the drug, observed again, and their reaction times are recorded. The expectation is that the drug will reduce reaction time.

 

Pilot	Trial 1 Time (sec)	Trail 2 Time (sec)
A	.83	.69
B	.74	.71
C	.82	.79
D	.86	.87
E	.66	.65
F	.63	.68
G	.81	.67
H	.77	.72
I	.73	.71
J	.69	.65

 

 

Conduct a t test using the five-step hypothesis testing process and StatCrunch. Show your work.

 

 

2. A researcher wishes to determine if the college students with a “B” average have attain more flying hours by the end of their first semester of college than those that do not have a “B” average at the end of the first semester. The researcher surveys 20 college students that are also student pilots and records their flight hours as well as their GPA (noted as “below B” and “B or better”), and, fortunately, there is an equal number “below B” and “B or better.” The expectation is that those students with a B average or better will have more flying hours by the end of their first semester than those students that are below a “B” average. Here are the survey results:

 

 

 

 

 

 

 

 

 

Below B flying hours	B or Better flying hours
43	52
41	32
31	44
36	58
39	51
37	30
36	44
41	55
45	62
41	52

 

 

Conduct a t test using the five-step hypothesis testing process and StatCrunch. Show your work.