STA301 Midterm Past Paper 6

FINALTERM EXAMINATION

FALL 2006 STA301 - STATISTICS AND PROBABILITY (Session - 1 Marks: 50 Time: 120min

Student Name:

Center Name/Code:

Exam Date: Tuesday, February 06, 2007

2. Do not ask any question about the contents of this examination from anyone.
3. You are allowed to use the calculator & Statistical tables in order to solve the questions.
4. For your convenience we are providing you the following symbols,

� ,∩, X or write Mean, s, or sd for standard deviation, s2 2 or sd2 or � log x variance for variance,for square root or whole square root. Question Marks Question Marks Total

Q1. ( Marks: 4 )

Statistics as a subject, in which two of parts is divided? Expalin briefly both of parts.

Q2. ( Marks: 4 )

Differentiate simple and composite hypothesis.

Q3. ( Marks: 4 )

Correct the followings:

 2

 3 contains approximately 50% area.

contains approximately 90% area.

contains approximately 90.88% area.

Q4. ( Marks: 1 )

The heights in centimeters of 5 students are: 165, 175, 176, 159, 170. The sample median and sample mean are respectively:

170, 169

170, 170

169, 170

176, 169

Q5. ( Marks: 1 )

The characteristic which can not be measured numerically is called:

Q8. ( Marks: 1 )

One sided and two sided critical regions are based on:

Level of significance

1. Sample size
2. Null hypothesis
3. Alternative hypothesis

Q9. ( Marks: 1 )

The rule or formula that is used to estimate a population parameter is called:

1. Estimate
2. Estimator
3. Denominator
4. None of these

Q10. ( Marks: 1 )

The probability of rejecting a true null hypothesis is called:

Level of significance

1. Type-1 error