Which of the following statements are true? Give reasons for your answ

Conc. of AiCI₃ /Sample

Question

Which of the following statements are true? Give reasons for your answer.

(i) F-distribution is always used in goodness of fit.

(ii) Measure of central tendency in a data set refers to the extent to which the observations are scattered.

(iii) A process is said to be under assignable cause when the points are above the VCL link of ( chart. $\overline{x}$ ,R)

(iv) Simple random sampling is done by using random number tables where the probability of drawing a digit is 0⋅ .1

(v) All time series have a trend.

13 Feb 2025

Answer :

Word Count : 276

Let's analyze each statement one by one: ### (i) F-distribution is always used in goodness of fit. False The chi-square (χ²) distribution is typically used for goodness-of-fit tests, not the F-distribution. The F-distribution is primarily used for comparing variances (such as in ANOVA and regression analysis). ### (ii) Measure of central tendency in a data set refers to the extent to which the observations are scattered. False The measure _____ ______ _______ ____ _________ ____.
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Year			Number sold (thousands)
1990			3
1991			3
1992			3
1993			3
1994			6
1995			6
1996			6
1997			6
1998			9
1999			10
2000			12

समय	प्रतिदर्श संख्या
	1	2	3	4	5
9 बजे प्रातः	8	9	15	4	11
10	7	10	7	6	8
11	11	12	10	9	10
12	12	8	6	9	12
1 बजे सांय	11	10	6	14	11
2	7	7	10	4	11
3	10	7	4	10	10
4	8	11	11	11	7