Answer:
Step-by-step explanation:
Given that x = no of movies high school students watched is N(6.8, 1.8)
Sample size = 36 and hence std error = 1.8/6 = 0.3
![H_0: x bar = 6.8\\H_a: x bar < 6.8\\](https://tex.z-dn.net/?f=H_0%3A%20x%20bar%20%3D%206.8%5C%5CH_a%3A%20x%20bar%20%3C%206.8%5C%5C)
(two tailed test)
Mean difference = 6.2-6.8 = -0.6
Test statistic z = -0.6/0.3= -2
p value = 0.02275
Since p <0.05 we reject H0.
There is evidence to show that college students watch fewer movies a month than high school students
Answer:
31.41
Step-by-step explanation:
Substitute
1/8 is your answer
-Hope this helps
Answer:
2(90-x)=180-x-24
solve this
180-2x=156-x
solve the rest on your own
Hope it helps!
I believe the answer is (5, 6.333)