Statıstıcs Iı Çıkmış Sorular, Online Deneme Sınavları, Çalışma, Dersler, Sınava Hazırlanma, vize, final

Soru 1:

What measures the relative change in price, quantity, value, or some other characteristics of interest compared to a base period?

A) Value B) Reference value C) Index number D) Price Index E) Quantity Index

Soru 2:

In a binomial test, what is the sample size to decide whether the sample size is small or large?

A) 10 B) 25 C) 30 D) 40 E) 55

Soru 3:

In two population hypothesis testing which of the following is true?

A) µ1 >5 B) µ2 < 0 C) µ1 > ( µ2 - 5) D) µ1 – µ2 = -5 E) µ1 – µ2 = 0

Soru 4:

In _______, every Kth element after a random starting point is taken.

A) Snowball sampling B) Quota sampling C) Convenience sampling D) Systematic sampling E) Simple random sampling

Soru 5:

Which of the following is an example of a basic index number?

A) -1 B) 120.3 C) 50 / 432 D) 60% E) x

Soru 6:

For Ahmet going work by either bus or his own car are examples of .......

A) State of natüre B) Nature of state C) Payoff D) Decision alternative E) Payroll

Soru 7:

If the alternative hypothesis is written as H1:P < Q in small sample Binomial test, how do we find the p-value?

A) B) C) D)

Soru 8:

Which of the following statements about Pearson's Correlation Coefficient is true?

A) A relationship shown by Pearson’s correlation coefficient means that one variable’s existence is the cause of the second variable’s existence. B) Pearson’s correlation coefficient isn't easily affected by the outliers. C) In order to show the degree of the relationship between three or more continuous variables, The Pearson’s correlation coefficient is used. D) Pearson’s correlation coefficient gets values between -1 and +1. E) The positive sign of the correlation coefficint indicates that the change in the variables is in the different directions.

Soru 9:

The price of a certain electronic product at a chain store is 180 TL. The same electronic product is also available through various online stores and five of the store prices are as follows: 155, 179, 175, 175, 161 TL. What is the null hypothesis for the problem given above?

A) H0 : µ = 180 B) H0 : µ > 180 C) H0 : µ < 180 D) H0 : µ < = 180 E) H0 : µ > = 180

Soru 10:

A teacher has created a simple linear regression model for a problem with two variables. The total variation in the model is partitioned as follows: SST = SSR+SSE = 450+ 50 What is the value of the coefficient of determination in this problem?

A) 60% B) 70% C) 80% D) 90% E) 100%

Soru 11:

If the quantity in the base period is 120 and the quantity in the current period is 100, what is the value of the simple index for quantity for current period?

A) 83.33 B) 75.25 C) 85.1 D) 98.23 E) 90

Soru 12:

Price of X is 3, 4, and 2 units on March, April, and May, respectively. What is the chain-based simple price index for April?

A) 75 B) 400 / 3 C) 50 D) 80 E) 200

Soru 13:

Total price and quantity for products group A is 14 and 5, and 25 and 4, as unit a and unit b, for months X and Y, respectively. What is the Laspeyres' price index for A for month X when month Y is the base?

A) 19.5 B) 125 / 7 C) 56.0 D) 70.0 E) 95.0

Soru 14:

In a simple linear regression model, what do ? and ß refer to?

A) the population parameters to be estimated by sample data B) independent variables C) dependent variables D) random errors E) regression line

Soru 15:

Using the graph, what is the Pearsons correlation between these two variables?

A) -1 B) -0.2 C) 0 D) 0.5 E) 1

Soru 16:

In an index, base value is 50 and today's value is 200, what is the simple index number for today's value?

A) 300 B) 400 C) 500 D) 600 E) 700

Soru 17:

_______________ tests are used to determine whether a data set comes from a particular distribution

A) t B) z C) Sign D) Goodness of fit E) Wilcoxon Rank Sum

Soru 18:

_______is a family of indexes that measures the average change over time in selling prices received by domestic producers of goods and services. Which of the following completes the definition best?

A) Consumer Price Index B) Producer Price Index C) Weighted Composite Indexes D) Simple Aggregate Index E) Chain-Based Index for Quantity

Soru 19:

X is 51, Y is 170. What is the simple index number of X compared to Y?

A) 3.33 B) 30 C) 119 D) 221 E) 442

Soru 20:

The payoff values for decision alternatives : there are 5 states of nature and the cost values for the first decision alternative are -0.8, -0.9, -0.2, -0.7, -0.6. The decision maker is pessimistic. Which payoff value is taken from the first decision alternative?

A) -0.2 B) -0.6 C) -0.7 D) -0.8 E) -0.9