Amethod currently used to screen cancer fails to detect cancer in 20% of those who have cancer. a new method has been developed that researchers hope will be able to detect cancer more accurately. a random sample of 200 known to have cancer were screened using the new method and it failed to detect cancer in 30. conduct a test to see if the new method is more accurate. use α= 0.05. assume that the sample size is large.
this is because the four is four hours and the n represents the 1 extra hour over the weekend.
b= i'm srry i don't know that one.
4+n=5 n=1 because if vernon plays 5 hours a week then 4+1=5 hours.
hope this : )
its not b