Question
Question 1 In an investigation into ownership of laptops among school students, 200 randomly chosen students were interviewed.It is found that 140 of them owned
Question 1
In an investigation into ownership of laptops among school students, 200 randomly chosen students were interviewed.It is found that 140 of them owned a laptop.
(a)Find the 99% confidence interval for the proportion of all school students owning a laptop.
(b)Test, at 5% level of significance, whether the proportion of school students owning a laptop is less than 75%.
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Understanding Analysis
Authors: Stephen Abbott
2nd Edition
1493927124, 9781493927128
