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2 answers:
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This is the answer to your question
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
(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: 30y - 25b +5
Step-by-step explanation:
(look at attachment image fir explanation)
Answer:
Step-by-step explanation:
Surface area ⇒ area of 2 triangles + area of 3 rectangles