Deneme Sınavı Soruları

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?

Under this optimistic criterion, the decision maker calculates the best possible payoff for each decision alternative (among all possible states of nature, for that specific alternative), and then he/she chooses the decision that has the maximum best possible outcome. Which criterion is this?

If the correlation between two variables is 0, which one of the following is true?

The price informations for different products regards to the different years are followings:

According to these information, what is the simple average price index for 2020 by using 2017 as the base period?

I. It determines whether the scores in the sample come from a population with
theoretical distribution.

II. It is one of the goodness of fit tests.

III. The level of measurement for data is at least interval.

Which one/s of the statements given above is correct about Kolmogorov Smirnov Test?

Which one of the following non-parametric tests is used for two sample problems?

If we know the proportion P for one class, the proportion of Q for the other class must be equal to which of the following below?

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?

If the correlation between two variables is 0.75, what is the coefficient of determination in this problem?

Which of the following statements is true about "H0:ρ=0"?

The payoff values for decision alternatives : there are 5 states of nature and minimum payoff values for 6 decision alternatives are I) 61.150, II) 90.125, III) 20.575, IV) 70.225, V) 40.350, VI) 14.750. The decision maker is pessimistic. Which decision alternative is choosen?

The number of thefts occurring in each season (winter, spring, summer, fall) in a province for the last year is given below: 

Winter: 15

Spring: 25

Summer: 80

Fall: 70

What is the expected probability according to uniform distribution?

According to which criterion a decision maker choose that course of action which minimizes the minimum possible pay – offs?

I. There are four possible correct and incorrect decision-making situations that may occur through statistical hypothesis testing.

II. Type I error is defined as failing to reject the null hypothesis (H₀) when it is actually false.

III.  Type II error is defined as rejecting the null hypothesis (H₀) when it is actually true.

Which of the given statements about incorrect decisions through hypothesis testing can be said to be true?

Which of the following are among the reasons for sampling?

1. Cost
2. Time
3. Accuracy
4. Destructive tests
5. Esthetics

what is the total size of the rejection region in hypothesis testing?

Which one of the following investigations must definitely use sampling?

25, 45, 55, 35, 40

What is the estimation of the arithmetic mean of the data set given above?

Which of the following statements is false regarding the test statistic formula below, which is for two sample tests of means when their population variances are known?