92年 - 92 淡江大學轉學考統計學#56323

科目：研究所、轉學考(插大)◆統計學 | 年份：92年 | 選擇題數：5 | 申論題數：22

試卷資訊

所屬科目：研究所、轉學考(插大)◆統計學

選擇題 (5)

1.( )若虚無假設H₀。為[新發行的藥不會增加心臟病突發的狀況]則下列何者的選擇較合適？ (A) a =0.001 且β=0.1 (B) a =0. 01 且β=0. 05 (C) a=0. 05 且β=0.01 (D) a=0.1 且β=0. 001 (E) a=0.05 且β=0. 05

2.( )若虚無假設₀。為汽車的煞車系統需要修理了 j則了列何者鈞選f較合適？ (A) a =0.001 且β=0.1 (B) a=0.01 且β=0.05 (C) a =0. 05 且 β=0. 01 (D) a =00.5 且β=0. 001 (E) a =0. 05 且β=0. 05

3.

4. ( ) If the mean of a normal distribution is negative, then (A) the standard deviat ion must also be negative (B)'the variance must also be negative (C) a mistake has been made in the computations, because the mean of a normal distribution can not be negative (D) the standard deviation must be zero (E) None of these answers is correct.

5. ( ) In a regression analysis if r² = 1, then (A) SSE must also be equal to one (B) SSE must be equal to zero (C) SSE can be any positive value (D) SSE must be negative (E) None of these answers is correct.

申論題 (22)

1 • Refer to Exhibit 1. The least squares estimate of the slope b₁ equals____

2. Refer to Exhibit 1. The least squares estimate of the intercept b₀ equals ____

3. Refer to Exhibit 1. The point estimate ofy when x = 20 is____

4. Refer to Exhibit 1. The sample correlation coefficient equals____

5. Refer to Exhibit 1. The coefficient of determination equals____

【已刪除】 (A). Compute P(A

B).

(B). Compute P(D).

(C). Compute the probability of the complement of C.

(D). Are A and C mutually exclusive?

(E). Are A and C independent?

(A). What is the expected number of students who have registered for a general education course on a long -distance learning basis?

(B)_ What is the probability that less than two students are registered for a general education course on a long -distance learning basis?

(A).求k值

(B).請計算 P(x＜2) •

(A).根捸過去資料顯示，P大约為0.3 •

(B).不知道p值

(A). What is the probability that mean miles-per-gallon of the 36 cars will get less than 21 miles-per-gallon?

(B). What is the probability that mean milcs-per-gaHon of the 36 cars will get exactly 22 mean miles-per-gallon?

(A). Refer to Exhibit 2. With a ,05 level of significance, what is the critical value for the test ?

(B). Refer to Exhibit 2. What is the expected number of adults who prefer coffee ?

(C). Refer to Exhibit 2. What is the calculated value of this test for independence ?

(D)* Refer to Exhibit 2. What is the result of this test ?