Q4.(15) One random sample of the hours of one type of user watch TV per day...

Q4.(15) One random sample of the hours of one type of user watch TV per day was recorded: 2.9, 3.5, 3, 3.2, 3.3, 3.5, 3.3, 3, 3.5.

1.(5) Apply the backward empirical rule to check normality of the data, and conclude if any evidence of non-normality.

2.(5) Assume that the underlying population is normal. Find a two-sided 99% conﬁdence interval for the the true population average hours

3.(5) Assume that population variance σ2=0.09σ2=0.09 and the bound on the error of estimation of 99% conﬁdent interval to be 0.2. Find the minimum sample size nn.

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orchestra answered 1 year ago

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