Statıstıcs II (ENG)
Ünite Sınavı Soruları
- 10 soru
- Soru metinleri açık; şıklar ve cevap anahtarı uygulamada
- 1
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?
- 2
What does the value near 0 of Spearman’s rank correlation coefficient mean?
- 3
In a binomial test, what is the sample size to decide whether the sample size is small or large?
- 4.........................is a non-parametric alternative test for one sample t test, paired sample t test, and a researchin which quantitative measurements is impossible but in which it is possible to rank the measurements with respect to each other. It is used for the hypothesis test about the population median, M. Inferences about the population median are important when the population has highly skewed distribution. Which of the following test should be writen to the gap?
- 5
Which one of the following statements is true?
- 6
_______________ tests are used to determine whether a data set comes from a particular distribution
- 7
Which test is used to decide whether k independent samples are drawn from different populations?
- 8
I. H1 : The first population is shifted to the right of the second population
II. H1 : The first population is shifted to the left of the second population
III. H1 : The first and the second populations are shifted from each otherWhich of the above is the correct alternative hypothesis sentence for Wilcoxon Rank Sum Test?
- 9
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?
- 10
Answer the following three questions (Q5,Q6 and Q7) according to those information.
The following table contains the exam scores of three different classes.
A mathematics teacher wants to test whether the distribution of exam scores for all classes are identical or not. Which test should be used for that hypothesis testing? (Confidence level= 0.95)