STA301 Current Final Term Fall 2013 Shared by zia ud din

2marks) write down relationship b/ehistrogram and frecncypolygone.
2marks) out of 1000 women 224 women use arial washing powder what is the point of estimator and point estimation of the proportion of the women who use arial.
2marks) a coin is tossted 900 times and heads r 490state the null and altenate hypothesis that the coine is unbiased.
2marks)

3marks ) average hight is 5.3 inches of 10 students calculate smpling error
Data is 5.01,5.11,5.20,4.90,4.11,5.00,5.50,5.40,5.20,5.13
3marks) without rplacement find the mean and stander daviation while
N=120, n =35, meue =60.5, sigma =2.7
3mrks) find the value of z-test statistics while
n=25,xbar = 40, sigma sequr = 125 alpha = 0.10 Ho; meue=22
3 mrks)for the k treatment find the dgree of freedom for treatment, blocks,and error
5 marks)calculate the sampling distribution of perportion& mean & variance
 f
0        4
0.5     16
1         16
Sigma   36
5 marks ) find variance from discreat probability
No of roses = 3, 4 , 5 , 6 , 7
P(x) = 0.5 , 0.10 , 0.20 , 0.30 , 0.35
5marks )xbar = 19
 N= 12
Sigma squre = 33
Find 96% for meue
5mrks) n= 15
Variance = 0.22
Sigma squre = 0.12
Sigma squre> 0.12
Level of significance = 0.05