Question

1228

請問這個要怎麼敘述啊QQ

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2
3.〔a) (12 points) Let 9? be an nibiased estirmator 中  pafaneter 外based On 2 Te
sample taken from a paiainetrie family 0f 40Uhs.  State_ the definitlona 9t
variance and standard error of 9, respectively. Give am example to he explain
your definitions.                 - 2                           叨
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放生            blem in which the distribution of the

(b) (4 points) Describe a hypothesis testing PTo
test' statistlc under the null hypothesis is obtained by uslh
人                       間旋No

(c) (10 points) Give two examples of hypothesis testing problem in which th
sponding test' statlstic under the null hypothesis is known to be exactly or approx-

imately chi-square distributed.

二8                    由
ww 3               St        l      3

gthe central limit theo-

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