Help With My Homework!

#1


I need help with a problem...

I am trying to find the t* value by calculating the upper tail probability p

I have 37 degrees of freedom and a 98% confidence interval, how do i find this p value--my table only goes up to 30, then 40....

MUCH APPRECIATED!
 
#2
Help Please Binomial Probability Distribution

I am given this problem


72% of americans have online access

Out of a sample of 30 people


what is the expected number of persons with online acess?
 
#3
72% of americans have online access

Out of a sample of 30 people


what is the expected number of persons with online acess?
E(x) = np = 0.72 x 30 = 21.6