Statıstıcs II (ENG)
Deneme Sınavı Soruları
- 20 soru
- Cevap anahtarı açık: çöz, sonucunu gör
- 1
When a probability of obtaining an outcome, out of two outcomes, on one trial is known and a probability of the number of times the same outcome might appear, say x times out of n independent trials is tried to be found, which probability distribution is used?
- 2
The payoff values for decision alternatives : there are 6 states of nature and the cost value for the first decision alternative is 20 according to optimist and 30 according to pessimist. If coefficient of optimism is 0.3, what is payoff value for the first decision alternative?
- 3
What is the geometric mean of the Paasche and Laspeyres indexes?
- 4
An ______________ measures the relative change in price, quantity, value, or some other characteristics of interest compared to a base period?
- 5
Which of the following is an example of a basic index number?
- 6
............ is used to decide whether k independent samples are drawn from different populations. It is an extension of the Wilcoxon sum rank test to a comparison of more than two populations. It assumes that the variable under consideration is measured on at least ordinal scale.
Which of the following test should be written the gap above.
- 7
In which of the followings all pairwise values of the two continuous variables are plotted in two dimensions?
- 8
Monthly sales of companies X and Y are 30 units and 40 units, respectively. What is the index for X compared to Y?
- 9
Which of the following test is the most commonly used goodness of fit test?
- 10
What is the value of test statistic H calculated in that hypothesis testing?
- 11
In a sign test the median is 12 and here are the observations in the sample: 5, 6, 8, 9, 14, 15, 16, 18, 20, 24. What is the n+ value for the sign test?
- 12
Total price for products group A is 10 and 12 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?
- 13
Y=5-2.4X
According to the given simple linear regression model, which of the following statement is false?
- 14
Which sign we are not going to use in one sample hypothesis problems for alternate hypothesis?
- 15
The frequency of 3 point field goals of a basketball player in a sample of 360 is 216. What is the point estimate of population proportion for 3 point field goals of this basketball player?
- 16
In Interval estimation problem: the sample arithmetic mean is 26 and the upper limit of the confidence interval is 33, then what is the lower limit of the confidence interval?
- 17
What is the critical z-value for α=0.05?
- 18
Which one of the following is the degrees of freedom for between source of variation in F table?
- 19
Interval estimation : the limits of the confidence interval are (49.6, 50.4), the significance level is 0.01. What is the sample arithmetic mean?
- 20
Which of the following test is used in case of more than two means of population?