12:43 PM 100% oo T-Mobile Expert Q&A; Done 17 In order to conduct a study of res

Question

12:43 PM 100% oo T-Mobile Expert Q&A; Done 17 In order to conduct a study of resistivity on acertainsemiconductor waters a sample was taken from a supply ef semiconductors kept at The kept storage is to be the items virtual Population bl physical population 18) which of the followings is an appropriate meawre ef the variatility a sample 19) As a quality assurance attempt in a manufacturing setting, every item is picked for further testing till a sample of firth of sampling is called 200 At of 3000 thermometers manufactured by a thermometer manufacturing firm in one week 400 are reading the freezing point between "or degrees and "s" degrees out of the thermometers 150 of read the freezing points below derrees. 1so is considered to b) Statistic

Explanation / Answer

17) Since semiconductors are manufactured, it will be a manufactured population. Option D is correct.

18) Variability measure: Standard deviation. Option C is correct.

19) If we are selecting every kth item then that is a systematic sample. Here we are taking every fifth so this will be a systematic sampling/ Option C is correct.

20) 150 will be considered as variable since this will change from sample to sample. Option C is correct.

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