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

Soru 1:

A fisherman thinks that the depth of the sea is effective on the amount of specific fish caught (kilogram) on a given day. The fisherman sets the fishing net in to different areas for the last ten days and records the amount of fish caught and the depth of the sea where the fishing net was set. A friend of the fisherman has calculated the Pearson’s correlation coefficient as 0.75. In the example above, what is the dependent variable?

A) The depth of the sea B) The area where the net is set C) The amount of the fish caught D) The friend of the fisherman E) The duration (last ten days)

Soru 2:

It is based on the agreement between the distribution of a set of observed values and some particular theoretical distribution. This one sample test determines whether the scores in the sample come from a population with theoretical distribution. Which of the following tests is described above?

A) The Chi-square Goodness of Fit Test B) The Kolmogorov- Smirnov Test C) Kruskal-Wallis Test D) Wilcoxon Signed Rank Test E) Wilcoxon Rank Sum Test

Soru 3:

In decision making, where do we show all the possible decision alternatives of the problem, all the states of nature and the payoff values for each of alternative and states of nature combination?

A) ANOVA table B) t table C) Identitiy matrix D) Payoff matrix E) Mode and median

Soru 4:

The payoff values for decision alternatives : there are 5 states of nature and the cost value for the first decision alternative is 6 according to optimist and 5 according to pessimist. If coefficient of oprimism is 0.2, what is payoff value for the first decision alternative?

A) 5.75 B) 5.60 C) 5.45 D) 5.20 E) 5.15

Soru 5:

In which criterion a level of optimism (alpha) is attained for the maximum value of each action, 1-alpha to minimum value and then a weighted average payoff is calculated?

A) Hurwicz's B) Wald's C) Plunger's D) Shorrock's E) Tucker's

Soru 6:

The payoff values for decision alternatives : there are 5 states of nature and the profit values for the first decision alternative are 96, 87, 45, 14, 107. The decision maker is optimistic. Which payoff value is taken from the first decision alternative?

A) 14 B) 45 C) 87 D) 96 E) 107

Soru 7:

The weather conditions in this decision problem are examples of .....

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

Soru 8:

In a binomial test, x =35, n= 60 and P=0.55, what is the observed/calculated z value?

A) 0.154 B) 0.389 C) 0.657 D) 0.796 E) 0.872

Soru 9:

The payoff values for decision alternatives : there are 5 states of nature and the profit values for the first decision alternative are 69, 78, 54, 40, 87. The decision maker is optimistic. Which payoff value is taken from the first decision alternative?

A) 87 B) 78 C) 69 D) 54 E) 40

Soru 10:

Total price for products group A is 27 and 24 units for weeks X and Y, respectively. What is the fixed based simple average price index for A for week X when week Y is the base?

A) 112.5 B) 100 / 9 C) 100 / 19 D) 19 E) 25

Soru 11:

The following linear regression model is cretaed between two variables If the expected value of the dependent variable is 120, what is the value of the independent variable according to this linear regression model?

A) 21.56 B) 12.45 C) 35.85 D) 81.93 E) 110.25

Soru 12:

The payoff values for decision alternatives : there are 5 states of nature and minimum payoff values for 5 decision alternatives are I) 1.150, II) 1.025, III) 1.275, IV) 1.725, V) 1.450. The decision maker is pessimistic. Which decision alternative is choosen?

A) I B) II C) III D) IV E) V

Soru 13:

the following regression model is created between two variables: if the value of independent variable is 12, what is the expected value of the dependent variable according to given regression model?

A) 60 B) 89 C) 120 D) 140 E) 152

Soru 14:

What is the chain-based simple index for Dean according to table?

A) 150 B) 80 C) 110 D) 90 E) 100

Soru 15:

The payoff values for decision alternatives : there are 5 states of nature and the profit values for the first decision alternative are 6, 7, 4, 9, 8. The decision maker is pessimistic. Which payoff value is taken from the first decision alternative?

A) 4 B) 6 C) 7 D) 8 E) 9

Soru 16:

The payoff values for decision alternatives : there are 5 states of nature and the cost value for the first decision alternative is 5 according to optimist and 6 according to pessimist. If coefficient of oprimism is 0.4, what is payoff value for the first decision alternative?

A) 5.20 B) 5.40 C) 5.60 D) 5.75 E) 5.80

Soru 17:

What is the chain-based simple index for Duke according to table?

A) 15.8 B) 112.87 C) 120.78 D) 82.45 E) 77.78

Soru 18:

Total price and quantity for products group A is 34 and 3, and 80 and 5, as unit a and unit b, for years X and Y, respectively. What is the Fisher’s price index for A for year X when year Y is the base?

A) 102.0 B) 25.5 C) 400.0 D) 240.0 E) 170.5

Soru 19:

In a Chi-square goodness of fit test, the observed value is 85, the expected value of the same observation is 80, what is the contribution of these values to overall chi-square value?

A) 0.1258 B) 0.6578 C) 0.3125 D) 0.4545 E) 0.1595

Soru 20:

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

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