或者是要求什么
The cost of weddings has
skyrocketed in recent years.As a result,many couples are opting to have their
weddings in the Caribbean.A Caribbean vacation resort recently advertised that
the cost of a Caribbean wedding was less than $10,000.Listed below is the
total cost (in $ thousands) for a sample of eight Caribbean weddings:
9.7
9.6
11.5
12.8
9.1
10.5
13.5
12.3
8.2
9.3
11.1
12.3
14.1
8.1
11
10.8
10.4
9
10.5
10.8
10.2
9.6
12.7
11.1
9.9
11.6
11.2
8.8
9.4
10.3
9.2
9.3
(a) (10%) At 5% level of significance,is it reasonable to conclude that the cost of a Caribbean wedding
is significantly different than $10,000 on average?
人气:393 ℃ 时间:2020-05-20 19:04:14
解答
It is to find out the average of S10,000 with the CI of 5%.The standard deviation of the data.
推荐
- 4、填空:
- 1.某小区有400户住户,一户住户拥有的汽车辆数Xi( i=1,2,3,……400)的分布律为
- 2、在简单随机重复抽样下,其他条件不变,抽样单位数增加一半,则抽样平均误差( )
- 一统计学题目,求详细解题过程
- 设总体X,Y均服从N(0,σ2),(X1,X2,X3)和(Y1…Y4)分别来自总体X,Y的样本,A为(Y1…Y4)的样本均值,试着利用上述所有的已知条件构造一个统计量F.使F~F(3,3).
- 我为能成为你们中的一员而感到骄傲 英文怎么说
- 已知直线L1与L2的斜率是方程6x2+x-1=0的两个根,那么L1与L2的夹角是( ) A.45° B.60° C.30° D.15°
- 急·````
猜你喜欢
- 初二数学上册习题12.1第5体的答案
- 《陋室铭》一文描写“陋室”环境恬静,雅致,令人赏心悦目的语句是什么
- 一共有三道题.1.已知2^x=3,2^y=5,2^z=15,试说明X+Y=Z 2.已知4^a*27^b*27^c=3996,其中a b c为正整数,求
- more than这句里什么意思
- 如果两个角互为补角,那么这两个角一定互为邻补角
- 1.小明设计; 甲乙两个实验来证明二氧化碳和氢氧化钠发生了化学反应(实验现象):
- 98×102用中学乘法公式做
- 过点a(1,-1)b(-1,1),且圆心在直线x+y-2=0的圆的方程是