Q1) Some students were asked if they carry credit card. Here are responses.
|
Class
|
Credit Card Carrier
|
Not a Credit Card Carrier
|
Total
|
|
Freshman
|
33
|
27
|
60
|
|
Sophomore
|
6
|
34
|
40
|
|
Total
|
39
|
61
|
100
|
Determine probability that student was sophomore?
Determine the probability of selecting a face card from deck of 52 cards (face cards are jacks, queens, and kings)? Fin dout the probability of second card being face card if first card was a king? (Without replacement.)
Q2) In right-tailed test at α = .05 we would
i) Comfortably reject the null hypothesis.
ii) Comfortably accept the null hypothesis.
iii) Feel uncomfortable with either decision (too close)