Simple Random Samples 7.3 You have just been blessed with quadrup) ets (all deci

Question

Simple Random Samples 7.3 You have just been blessed with quadrup) ets (all decide to select their names using an SRS the following list of the most of four names from ames given to American girls born in the port decade. To do this, use Table 7.1 (p. 246), starting at line 122. 1 Emily 2) Madison 5) Ashley 9) Abigail 3) Hannah 7) Samantha 11) Elizabeth 15) Lauren 19) Isabella 4) Emma 8) Sarah 12) Alyssa 16) Taylor 20) Anna 6) Alexis 10) Olivia 14) Grace 18) Brianna 13) Jessica 17) Kayla 8. (a) Would pulling out and lining up several dollar bills to use the eight-digit serial numbers be a reasonable substitute for Table 7.1? Explain (b) How about using the telephone numbers on a page of the phone book? Explain.

Explanation / Answer

Question 7.3

Here i am doing Row wise random sampling

so the number we selected here are in between 1 to 20 are (13), (15), (05), (09)

so names associated with it are

Jessica, Lauren, Ashley and Abigail

QUestion 8

(a) No, pulling out and lining up several dollar bills to use for simple random sampling is not a proper random sampling method. As it is limited in certain aspect and the numbers on dollar bills are not random all the time.

(b) Telephone numbers on the directory are mostly random as they are written as per the surname of the owner of telephone but the phone number certainly start with a code or a specific digit. There are certain limitations to provide phone numbers of specific numbers. Sometimes, number 12-13 are avoided in the end. So, a SRS can't be properly random when we use telephone directory.

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