document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1085476>Question 1085476</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Question number 1<BR>\n" );
document.write( "An experimental station recorded the following data:\r<BR>\n" );
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document.write( "32	29	34	31	35	35	27	32	38	37	31	38<BR>\n" );
document.write( "36	35	31	36	39	41	38	31	33	41	28	30<BR>\n" );
document.write( "39	39	31	37	36	32	30	39	35	32	33	38<BR>\n" );
document.write( "34	42	33	33	41	30	31	34	30	33	29	32<BR>\n" );
document.write( "49	30	34	33	35	33	33	35	29	35	35	42<BR>\n" );
document.write( "32	35	28	36	31	32	39	26	33	34	36	32\r<BR>\n" );
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document.write( "i.	Make a frequency table using five classes<BR>\n" );
document.write( "ii.	Draw a histogram from the table in (i) above<BR>\n" );
document.write( "iii.	Calculate the median, the mean and the Standard Deviation of the data set.\r<BR>\n" );
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document.write( "Question number 2<BR>\n" );
document.write( "65% of men consider themselves football fans. You randomly select 8 men and ask each if he is a football fan. Find the probability that the number who consider themselves football fans is;<BR>\n" );
document.write( "i. at least five<BR>\n" );
document.write( "ii. Less than five\r<BR>\n" );
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document.write( "Question number 3<BR>\n" );
document.write( "A newspaper is known to have a mean number of 4 typing errors per page. Find the probability that;<BR>\n" );
document.write( "i. at most three typographical errors will be found on a page <BR>\n" );
document.write( "ii. more than three typographical errors will be found on a page<BR>\n" );
document.write( "	<BR>\n" );
document.write( "Question number 4<BR>\n" );
document.write( "A cereal maker places a game piece in its cereal boxes with a probability of winning a prize in the game equal to 1/10. Find the probability that you win your first prize with your fith purchase. \r<BR>\n" );
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document.write( "Question number 5<BR>\n" );
document.write( "A civil service efficiency expert developed a test measuring job satisfaction of civil service clerks.  The following information was obtained from a random sample of 10 clerks.\r<BR>\n" );
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document.write( "X	48	92	32	56	40	72	16	56	76	80<BR>\n" );
document.write( "Y	13	2	14	10	14	6	17	8	3	7<BR>\n" );
document.write( "Where; x is the job satisfaction index and y is the # of days absent from work in 1 year.\r<BR>\n" );
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document.write( "i.	Draw a scatter diagram for the data<BR>\n" );
document.write( "ii.	From the scatter diagram, would you say slope is closest to 1, 0, or -1?<BR>\n" );
document.write( "iii.	Find the equation of the line.\r<BR>\n" );
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document.write( "Question number 6<BR>\n" );
document.write( "Assume that x has a normal distribution, with the specified mean and standard deviation.  Find the indicated probabilities;<BR>\n" );
document.write( "i.	P (3.5 &#61603; x &#61603; 5.8),  &#61549; = 4, &#61555; = 2<BR>\n" );
document.write( "ii.	P (x &#61619; 130),  &#61549; = 120, &#61555; = 15\r<BR>\n" );
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document.write( "&#8195;<BR>\n" );
document.write( "Question number 7<BR>\n" );
document.write( "A medical researcher wishes to evaluate the effectiveness of a drug in prolonging the life of a red cell in a culture medium. Seven cultures are treated with saline (an inactive control substance) and seven others are treated with the new drug. The following survival times in days are recorded;<BR>\n" );
document.write( "Control Group	Treated Group<BR>\n" );
document.write( "109			121<BR>\n" );
document.write( "112			119<BR>\n" );
document.write( "118			119<BR>\n" );
document.write( "116			126<BR>\n" );
document.write( "121			121<BR>\n" );
document.write( "100			115<BR>\n" );
document.write( "113			117\r<BR>\n" );
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document.write( "Conduct the necessary test to determine if the treatment with the new drug does in fact prolong the life of a red cell. Use &#61537;  = 0.05.\r<BR>\n" );
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document.write( "Question number 8<BR>\n" );
document.write( "A standardized mathematics test was given to fourth grade children in five schools in each of three different central Kenya school districts.  The mean score for each school and district follows:\r<BR>\n" );
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document.write( "District 1	District 2	District 3<BR>\n" );
document.write( "59	58	55<BR>\n" );
document.write( "68	63	79<BR>\n" );
document.write( "77	72	52<BR>\n" );
document.write( "70	55	77<BR>\n" );
document.write( "79	80	66\r<BR>\n" );
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document.write( "Use the 0.05 level of significance to test the claim that there are no differences in the mean scores from each school district.\r<BR>\n" );
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document.write( "&#8195;<BR>\n" );
document.write( "Question number 9<BR>\n" );
document.write( "Independent samples of tooth paste users were taken from four villages A, B, C and D. The respondents were asked which one of three common non-prescription painkillers X, Y, and Z they prefer to use. The resulting data are displayed in the table below. \r<BR>\n" );
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document.write( "VILLAGE	PAINKILLER<BR>\n" );
document.write( "	X	Y	Z<BR>\n" );
document.write( "A	32	39	12<BR>\n" );
document.write( "B	41	23	16<BR>\n" );
document.write( "C	16	18	12<BR>\n" );
document.write( "D	18	27	25\r<BR>\n" );
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document.write( "Use the data to check if there is sufficient evidence to conclude that there is association between the location and the painkiller preferred by the respondents.<BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #699574 by </B><A HREF=/tutors/aboutme.mpl?userid=ikleyn><B>ikleyn(52781)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=ikleyn><IMG SRC=http://www.algebra.com/images/aboutme-small.gif BORDER=0 alt=\"About Me\" VALIGN=MIDDLE></A>&nbsp;<IMG SRC=http://www.algebra.com/cgi-bin/show-face.mpl?user=ikleyn><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=699574\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> .<BR>\n" );
document.write( "One and only one question/problem per post. Please.\r<BR>\n" );
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document.write( "It is <U>THE RULE</U> of this forum.\r<BR>\n" );
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document.write( " </SPAN>\n" );
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