Chapters 7 & 8 (Imp Questions)
Q1: A manufacture of sports equipment has developed a new
synthetic fishing stick that the company claims has a mean
breaking strength of 9 Kg with a population standard deviation
of 0.6 Kg. A random sample of 50 fishing stick and found to have
a mean breaking strength of 8.9 Kg. Use a 0.05 level of
significance to analyze the above hypothesis.
Q2: Last week daily wages and income data of a person is given
below:
Income ($)
14
Expenses ($) 12
16
14
19
18
18
17
22
20
a) Develop a regression equation of the above of the form
𝝁𝒀|𝒙 = 𝜷𝟎 + 𝜷𝟏 𝒙
b) Identify the Expenses, when it is known weekly income is
$20.
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