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

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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Time	Sample number
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9 a.m.	8	9	15	4	11
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