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

Soru 1:

In a binomial test, if the P is 0.40, what is the value of Q?

A) 0.50 B) 0.30 C) 0.20 D) 0.60 E) 0.80

Soru 2:

The correlation coefficient between two variables is 0.45. What is the coefficeint of determination in this problem?

A) 0.2025 B) 0.3025 C) 0.4025 D) 0.6025 E) 0.8025

Soru 3:

If the proportion of married people in a group is 0.63, what is the proportion of single people in the group?

A) 0.17 B) 0.27 C) 0.37 D) 0.50 E) 0.63

Soru 4:

In Hurwicz criterion, if the value of coefficient of optimism is equal to 1, what is the state of the mind of decision maker?

A) Pessimistic B) Realistic C) Doubtful D) Optimistic E) Cost effective

Soru 5:

If the correlation coefficient is 0.45, what is the value of coefficient of determination?

A) 0.4545 B) 0.1525 C) 0.2535 D) 0.2025 E) 0.5025

Soru 6:

The payoff values for decision alternatives : there are 5 states of nature and the profit value for the first decision alternative is 15 according to optimist and 12 according to pessimist. If coefficient of optimism is 0.6, what is payoff value for the first decision alternative?

A) 14.25 B) 14.00 C) 13.80 D) 13.75 E) 13.45

Soru 7:

Total price and quantity for products group A is 40 and 8, and 60 and 7, as unit a and unit b, for years X and Y, respectively. What is the Fisher’s price index for A for year Y when year X is the base ?

A) 74 B) 80 C) 1400 / 3 D) 1500 / 7 E) 1600 / 21

Soru 8:

Which index is known as the average of weighted relative prices since it is a composite index number of prices formed by the weighted sum method?

A) Fisher’s Ideal Index B) Paasche's Index C) Laspeyres’ Index D) Consumer Price Index E) Chain-Based Simple Index

Soru 9:

A decision alternative has 2 and 4 as payoff values and the probabilities of the associated states of nature are 0.25 and 0.75 respectively. What is the expected monetary value of this decision alternative?

A) 2.25 B) 2.75 C) 3.25 D) 3.50 E) 3.75

Soru 10:

the variable a has values 10, 12, 14, 18, 19 and the variable b has values 2, 6, 4, 9, 2. What is the value of Pearson's correlation coefficient?

A) 0.267 B) 0.125 C) 0.987 D) 0.36 E) 0.08

Soru 11:

According to data, when the Pearson's correlation coefficient is found as 0.974, how should the relationship between the variables be interpreted ?

A) Perfect correlation B) Very strong correlation C) Moderate correlation D) Weak correlation E) No correlatipn

Soru 12:

What is the expected monetary value of this profit based payoff matrix?

A) 200.45 B) 225.70 C) 251.65 D) 300.25 E) 350.45

Soru 13:

Total price and quantity for products group A is 15 and 8, and 25 and 6, as unit a and unit b, for years X and Y, respectively. What is the Paasche’s price index for A for year X when year Y is the base?

A) 250 B) 150 C) 80 D) 60 E) 45

Soru 14:

In Wilcoxon Rank Sum Test n1=45 and n2=40 then what is the value of E[S]?

A) 2000 B) 1935 C) 1800 D) 1725 E) 1635

Soru 15:

A decision alternative has 80 and 30 as payoff values and the probabilities of the associated states of nature are 0.60 and 0.40 respectively. What is the expected monetary value of this decision alternative?

A) 63 B) 60 C) 57 D) 50 E) 43

Soru 16:

What is the non-parametric alternative of t test?

A) ANOVA B) Chi-Square C) Mann-Whitney dependence D) Wilcoxon Rank Sum Test E) Binomial

Soru 17:

How is the power of a statistical test calculated?

A) α - 1 B) β - 1 C) β + α D) 1– β E) 1 - α

Soru 18:

The method of finding the degree of relationship between the variables is called ____________________?

A) t test B) z test C) Mann-Whitney U test D) ANOVA E) Correlation analysis

Soru 19:

Decision maker defines the coefficient of optimism as 0.34 , then what is the coefficient of pessimism?

A) 0.17 B) 0.34 C) 0.66 D) 0.68 E) 0.83

Soru 20:

what do we call "P(fail to reject the null hypothesis H0 when it is actually false)"?

A) Correct decision B) 1-β C) β + α D) α E) β