IE4521_HW7_Solution

IE4521_HW7_Solution - it. This means that one cannot make...

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Brief explanation of 8.5.19: (a) That’s why we use the term ‘to reject the null hypothesis’. Firstly, null hypothesis is assumed to be valid unless the actual behavior of the data contradicts this assumption. A null hypothesis is never proven by such methods, as the absence of evidence against the null hypothesis does not establish its truth. In other words, one may either reject , or not reject the null hypothesis; one cannot accept
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Unformatted text preview: it. This means that one cannot make decisions or draw conclusions that assume the truth of the null hypothesis. (b) For a given data set a two-sided confidence interval for a parameter with a confidence level 99% should be longer than a two-sided confidence interval for the parameter with a confident level 95%. (c) If we have sufficient evidence to reject the null hypothesis, it is equal to show that the alternative is true....
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IE4521_HW7_Solution - it. This means that one cannot make...

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