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Soru

Dakika

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Her soruyu cevapladığınızda doğru/yanlış bilgisi gösterilir

Cevapları Sınav Sonunda Göster

Tüm soruları cevapladıktan sonra sonuçlar gösterilir

Soru 1

Orta Zorluk

In a binomial test, if the Q is 0.30, what is the value of P?

A) 0.20

B) 0.30

C) 0.50

D) 0.70

E) 0.90

Soru 2

Orta Zorluk

What is the smallest value for Pearson's correlation coefficient?

A) 1

B) 0

C) -8

D) 3

E) -1

Soru 3

Orta Zorluk

Total price for products group A is 14 and 16 units for months X and Y, respectively. What is the simple aggregate price index for A for month X when month Y is the base?

A) 224

B) 30

C) 400 / 3

D) 250 / 7

E) 87.5

Soru 4

Orta Zorluk

Which of the following can be writen as a null hypothesis for The Chi-square Goodness of Fit Test?

A) The population distribution is normal distribution.

B) The population distribution is uniform.

C) Distribution for duration of service is uniform distribution.

D) The two populations are identical.

E) The distribution of differences is symmetrical around MD = 0.

Soru 5

Orta Zorluk

The payoff values for decision alternatives : there are 5 states of nature and maximum payoff values for 5 decision alternatives are I) -0.15, II) -0.11, III) -0.72, IV) -0.27, V) -0.34. The decision maker is pessimistic. Which decision alternative is choosen?

A) I

B) II

C) III

D) IV

E) V

Soru 6

Orta Zorluk

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. Let’s assume that online prices are normally distributed and at the significance level ? = 0.1. Given the information above, what can we conclude about the mean online store price of the product?

A) The average price of the product at online stores is less than 180 TL.

B) The average price of the product at online stores is more than 180 TL.

C) The average price of the product at online stores is 180 TL.

D) The average price of the product at online stores is 175 TL.

E) The average price of the product at online stores is 171 TL.

Soru 7

Orta Zorluk

In Pearson's correlation coefficient, which value shows that there is a perfect relationship between the two variables?

A) 1

B) 2

C) 3

D) 4

E) 5

Soru 8

Orta Zorluk

In Wilcoxon Signed Rank Test if n=25 then what is the value of E[S]?

A) 185.50

B) 162.50

C) 142.50

D) 132.50

E) 122.50

Soru 9

Orta Zorluk

A ________________ index number is constructed to show the changes when there are a number of different items collected together?

A) simple

B) composite

C) aggregate

D) average

E) quantity

Soru 10

Orta Zorluk

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

A) Average

B) Mode

C) Index number

D) Standard deviation

E) ANOVA

Soru 11

Orta Zorluk

What is the most appropriate correlation coefficient value for the data set shown in the following scatterplot?

A) -1

B) -0.50

C) 0

D) 0.15

E) 0.95

Soru 12

Orta Zorluk

Price of X is 56, and 84 units on February, and May, respectively. January is the base period. What is the fixed based simple price index for May?

A) 20

B) 30

C) 150

D) 200 / 3

E) 140

Soru 13

Orta Zorluk

In decision making, at least how many decision alternatives are necessary?

A) 1

B) 2

C) 3

D) 4

E) 5

Soru 14

Orta Zorluk

Monthly sales of companies X and Y are 30 units and 40 units, respectively. What is the index for X compared to Y?

A) 1.200

B) 400 / 7

C) 300 / 7

D) 400 / 3

E) 75

Soru 15

Orta Zorluk

Here are some values to calculate correlation coefficient; = 980 n=30 s x =5 s y =8 What is the value of the correlation coefficient?

A) 0.29

B) 0.58

C) 0.65

D) 0.78

E) 0.84

Soru 16

Orta Zorluk

In a simple linear regression model, which of the following is used to represent random error?

A) y

B) x

C) ε

D) α

E) β

Soru 17

Orta Zorluk

In simple linear regression model, what does SSR stand for?

A) Total variation

B) Unexplained variation

C) Observation

D) Explained variation

E) Estimate

Soru 18

Orta Zorluk

What would be the best action under minimin criterion?

A) A1

B) A2

C) A3

D) A4

E) A5

Soru 19

Orta Zorluk

In a problem, the coefficient of determination is found 0, 5625. What is the correlation coefficient?

A) 1

B) 0,90

C) 0,75

D) 0,50

E) 0,25

Soru 20

Orta Zorluk

What is the expected monetary value of the decision alternative A3?

A) 65.12

B) 78.6

C) 102.9

D) 114.2

E) 84.80

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