A、n=1,2,3,…,

B、n=0,1,2,3,…,

C、n=1,2,3,…,

D、n=1,2,3,…,

A real estate company is interested in testing whether, on average, families in Gotham have been living in their current homes for less time than the families in Metropolis have. A random sample of 100 families from Gotham and a random sample of 150 families in Metropolis yield the following data on length of residence in current homes: Gotham:months,; Metropolis:months,. what is (are) the critical value(s) of the relevant hypothesis test if the level of significance is 0.05?

A、t @ Z = – 1.645

B、t @ Z =

C、t @ Z = – 1.96

D、t @ Z = – 2.080

A、

B、

C、

D、

從總體X中抽取容量為4的樣本，則樣本二階中心矩與樣本方差的關系是.

一、名詞解釋（每題2分，共18分） 1.脂酸的β-氧化: 2.酮體: 3.必需脂肪酸: 4.載脂蛋白: 5.?；d體蛋白（ACP）: 6.磷脂: 7.脂蛋白脂肪酶: 8.丙酮酸檸檬酸循環: 9. 乙醛酸循環：

A、90

B、360

C、180

D、60