× Didn't find what you were looking for? Ask a question
Top Posters
Since Sunday
7
n
3
j
3
o
2
x
2
c
2
2
p
2
n
2
3
2
C
2
z
2
Home Q & A Board Science-Related Homework Help Mathematics
New Topic  
rgasio rgasio
wrote...
Posts: 814
Rep: 0 0
6 years ago
Consider the following hypotheses test. H0:   80 Ha:  < 80 A sample of 121 provided a sample mean of 77.3 . The population standard deviation is known to be 16.5.
 a. Compute the value of the test statistic.
  b. Determine the p-value; and using  = .063, test the above hypotheses.
  c. Using the critical value approach and  = .063, test the hypotheses.
Read 32 times
1 Reply

Related Topics

Replies
wrote...
#1
6 years ago
a . z = -1.8
b. p-value = .0359 < .063, reject H0
c. test statistic z = -1.8 < z.063 = -1.53, reject H0
New Topic      
Quick Reply
Explore
Post your homework questions and get free online help from our incredible volunteers
  906 People Browsing
Start New Topic Take the Tour CoursesNew Study Tools Topics Trending Browse by Textbook
Live Chat
Related Images
  
 1038
  
 672
  
 289
Your Opinion
Who's your favorite biologist?
Votes: 587
Previous poll results: Which country would you like to visit for its food?