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Assignment # 4 (Lessons 31- 36)
Question 1: (Marks: 2+5=7)
a. In a finite population with and , find the mean and variance for the sampling distribution of sample mean for n = 25.
b. The mean and standard deviation of the maximum loads supported by 50 cables are 13 tons and 0.80 tons respectively. Find the 99% confidence interval for the mean of the maximum loads of all cables produced by the company. Also interpret the findings.
Question 2: (Marks: 5+3=8)
Find the
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b. The mean and standard deviation of the maximum loads supported by 50 cables are 13 tons and 0.80 tons respectively. Find the 99% confidence interval for the mean of the maximum loads of all cables produced by the company. Also interpret the findings.
The interpretation of Q1 part b is also required.. can anybody give an idea?
Interpret:-
Hence we can say that the mean of the maximum loads of all cables produced by the company lies somewhere between 12.71 and 13.29 and this statement is being made on the basis of 99% confidence
check this
hi sky high can u plz tell me how 0.4913 comes?
check the value of Z in area under the curve on page no 225
in column see 2.3 and opposite to it see in row 0.08 we get 0.4913
Hope so u got it
which page 225? of handouts? i didn't find it
why would we select the 9th column of 0.08?
because we want to see the value 2.38
so in table we see in column 2.3 and row 0.08 or we can say 2.3+0.08=2.38
mean to say 2.8 column &0.08 row
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