STA100 Final Term MCQs and Questions

MUHAMMAD IMRAN

1. Two sets A and B are equal if A ⊆ B and B ⊆ A. If two sets A and B are equal we write A = B to designate that relationship.
2. expression b2 – 4ac under the square root – called the discriminant –
3. For a particular data the value of Pearson’s coefficient of skewness is greater then zero. What will be the shape of distribution? ► Positively skewed.
4. The F-distribution always ranges from: ► 0 to +∞ .
5. The location of the critical region depends upon: ► Alternative hypothesis .
6. To find the confidence internal for the ratio of two variances we use: ►F-Distribution .

7. The degrees of freedom for a T-test with sample size 14 is: ►13 .

8. The variance of the chi-square distribution is: ► v 2.
9. The degrees of freedom for a t-test with sample size 10 is: ► 9.
10. The value of χ2can never be : ► Negative.
11. The mean of the F-distribution is:…………………..
12. The total number of samples when sampling is done with replacement : nN.
13. For testing of hypothesis about population proportion , we use: ► Z-test.
14. Analysis of variance is a procedure that enables us to test the equality of several: ► Means.
15. The classical definition of probability assumes: Equally likely evens.
16. MSE stand for mean square error.

17. LSD stand for least significance difference.

18. For the degree of freedom v>2 the variance of t-distribution is always………………… 19.

20. 21. 22.

Q1. In normal distribution how much data fall in this interval

Q3. name 4 commnly used type of average.

Q4. Find domain and range of f(x)= 5x+2

Q5. A teacher is making multiple choice quiz. she wants to give students same question but question appears in different order. If there are 27 students what least number does quiz contain.

Q6. def. Qualitative data and quantative data. also give example

Q7. write formula for regression for Yon X and write formula for intercept ‘a’.

Q8. A random sample is drawn from a population with mean 33 variance

 if S =15 40.4 x = THEN compute t-statics,

Q9. Find A+ 2B where

A andB

Q10. following are the 2 random samples

Sample 1 n = 1 5.17 x = 2x =810 Sample 2 n = 2.8 x = 2x =600

Construct 95% confidencal interval for the differenc b/w mean (where Syx=9.75)