document.write( "Question 1189106: A chocolate factory produces 80,000 blocks of chocolate per day. Today, the factory operator wants to sample 2% of the blocks for quality testing. He uses systematic sample, starting from the 17th block.\r
\n" ); document.write( "\n" ); document.write( "a. List the first five blocks to be sampled
\n" ); document.write( "b. Find the total size of the sample\r
\n" ); document.write( "\n" ); document.write( "Please explain how to solve and how to use a ti 84 Plus calculator to solve this question.
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Algebra.Com's Answer #820337 by ikleyn(52803)\"\" \"About 
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\n" ); document.write( "A chocolate factory produces 80,000 blocks of chocolate per day.
\n" ); document.write( "Today, the factory operator wants to sample 2% of the blocks for quality testing.
\n" ); document.write( "He uses systematic sample, starting from the 17th block.\r
\n" ); document.write( "\n" ); document.write( "a. List the first five blocks to be sampled
\n" ); document.write( "b. Find the total size of the sample\r
\n" ); document.write( "\n" ); document.write( "Please explain how to solve and how to use a ti 84 Plus calculator to solve this question.
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\n" ); document.write( "\n" ); document.write( "DEFINITION     (from this source     https://www.investopedia.com/terms/s/systematic-sampling.asp)\r
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document.write( "    Systematic sampling is a type of probability sampling method in which sample members from a larger population \r\n" );
document.write( "    are selected according to a random starting point but with a fixed, periodic interval. \r\n" );
document.write( "    This interval, called the sampling interval, is calculated by dividing the population size by the desired sample size. \r\n" );
document.write( "    Despite the sample population being selected in advance, systematic sampling is still thought of as being random \r\n" );
document.write( "    if the periodic interval is determined beforehand and the starting point is random.\r\n" );
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\n" ); document.write( "\n" ); document.write( "So,  the total size of the sample is  2%  of  80,000,  which is  1600.\r
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\n" ); document.write( "\n" ); document.write( "It is the answer to question  (b)  of your post.\r
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\n" ); document.write( "\n" ); document.write( "Now,  according to the definition above,  the sampling interval is  80000/1600 = 50.\r
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\n" ); document.write( "\n" ); document.write( "It means that every  50-th block must be tested,  starting from the  17-th block.\r
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\n" ); document.write( "\n" ); document.write( "So,  the first  5  blocks for testing are  17,  67,  117,  167,  217.\r
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\n" ); document.write( "\n" ); document.write( "It is the answer to question  (a)  of your post.\r
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\n" ); document.write( "\n" ); document.write( "Easy ? - - - That's all.\r
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