ECO 253 (CBT 2)

Using normal tables, find the values of the following probabilities: P(-1.50 < z < 2.50)

0.9214

0.9270

0.9245

0.9283

What is another name for standard error?

Error margin

Population error

Median error

Error of omission

Given a normal distribution with mean of 230 and standard deviation of 20, what is the probability that an observation from this population is: Greater than 280?

0.0062

0.3085

0.6853

0.1024

What is a particular value of the population, such as the mean income or the level of formal education? It is called _________

Parameter

Limit

Constraint

Factor

Below are not problems in the construction of Index Numbers, EXCEPT __________

The selection of present period

Selection of people

Time range

Choice of formula

Poisson distribution was derived in what year?

1832

1835

1839

1837

Below are methods of constructing index numbers EXCEPT __________

Fisher's Price Index

Simple aggregate

Weighted aggregate

Pascal's Price Index

Below are Uses of Index Number EXCEPT __________

Used to measure sick people

Used to study trend and tendencies

Used for deflation

Measures the purchasing power of money

How can the best fit line be given?

X = a + by

A = y + bx

Y = a + bx

Y = ay + bx

One out of the following is an assumption for F-test for equality of variances.

The samples are simple random samples

Various treatment and environmental effects are additive in nature

The samples are dependent on each other

None of the options

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ECO 253 (CBT 2)

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