document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1198358>Question 1198358</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Hi! You can email me this eurireunir14@gmail.com for the Excel file. I am trying to help my brother, who is having a hard time solving this. \r<BR>\n" );
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document.write( "PHSTAT solutions are required for problems 4. \r<BR>\n" );
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document.write( "4. A sample of 60 students at the University of Florida provided responses to the question “What is your age?” and are shown in the Excel file student-survey.xls. Formulate hypotheses that can be used to determine whether the mean age of a UF student (variable AG) differs significantly from 25  years  old.  At  a  level  of  significance  of  0.05,  can  the  null  hypothesis  be  rejected?  Show  the complete 8-step procedure with an opening statement of the parameter and use both the critical value approach and p-value approach. <BR>\n" );
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document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #831978 by </B><A HREF=/tutors/aboutme.mpl?userid=Theo><B>Theo(13342)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Theo><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=Theo><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=831978\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> i was not abl to do it through phstat, but i was able to solve it using an online statistical calculator.\r<BR>\n" );
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document.write( "the calculator i used is at <a  rel=nofollow HREF= \"https://www.graphpad.com/quickcalcs/oneSampleT1/?Format=C\" target = \"_blank\">https://www.graphpad.com/quickcalcs/oneSampleT1/?Format=C</a>\r<BR>\n" );
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document.write( "the inputs to this calculator were as shown below:\r<BR>\n" );
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document.write( "the values were taken from the excel file you gave me.<BR>\n" );
document.write( "here are the values from the column called AG (column C).<BR>\n" );
document.write( "32<BR>\n" );
document.write( "23<BR>\n" );
document.write( "27<BR>\n" );
document.write( "35<BR>\n" );
document.write( "23<BR>\n" );
document.write( "39<BR>\n" );
document.write( "24<BR>\n" );
document.write( "31<BR>\n" );
document.write( "34<BR>\n" );
document.write( "28<BR>\n" );
document.write( "23<BR>\n" );
document.write( "27<BR>\n" );
document.write( "36<BR>\n" );
document.write( "28<BR>\n" );
document.write( "28<BR>\n" );
document.write( "25<BR>\n" );
document.write( "41<BR>\n" );
document.write( "50<BR>\n" );
document.write( "71<BR>\n" );
document.write( "28<BR>\n" );
document.write( "26<BR>\n" );
document.write( "27<BR>\n" );
document.write( "31<BR>\n" );
document.write( "23<BR>\n" );
document.write( "23<BR>\n" );
document.write( "44<BR>\n" );
document.write( "26<BR>\n" );
document.write( "31<BR>\n" );
document.write( "24<BR>\n" );
document.write( "26<BR>\n" );
document.write( "26<BR>\n" );
document.write( "32<BR>\n" );
document.write( "26<BR>\n" );
document.write( "22<BR>\n" );
document.write( "24<BR>\n" );
document.write( "24<BR>\n" );
document.write( "23<BR>\n" );
document.write( "33<BR>\n" );
document.write( "23<BR>\n" );
document.write( "31<BR>\n" );
document.write( "26<BR>\n" );
document.write( "28<BR>\n" );
document.write( "24<BR>\n" );
document.write( "23<BR>\n" );
document.write( "25<BR>\n" );
document.write( "24<BR>\n" );
document.write( "27<BR>\n" );
document.write( "24<BR>\n" );
document.write( "26<BR>\n" );
document.write( "27<BR>\n" );
document.write( "32<BR>\n" );
document.write( "41<BR>\n" );
document.write( "29<BR>\n" );
document.write( "50<BR>\n" );
document.write( "22<BR>\n" );
document.write( "23<BR>\n" );
document.write( "26<BR>\n" );
document.write( "30<BR>\n" );
document.write( "23<BR>\n" );
document.write( "22\r<BR>\n" );
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document.write( "there were 60 values so your sample size was 60.<BR>\n" );
document.write( "the degrees of freedom are equal to that minus 1 = 59<BR>\n" );
document.write( "the software calculated the mean and the standard deviation and the standard error.\r<BR>\n" );
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document.write( "the results are shown below.\r<BR>\n" );
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document.write( "the two tailed p-value of the test was .0003.<BR>\n" );
document.write( "since this is less than the two tailed criticl p-value of .05, the test results were considered significant.\r<BR>\n" );
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document.write( "the t-score was equal to 3.8080.<BR>\n" );
document.write( "the critical t-score was calculated as plus or minus 2.00099.<BR>\n" );
document.write( "since the test t-score was greater than this, the test results were considered significant.\r<BR>\n" );
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document.write( "your conclusion is that the mean age is probably not 25 years old, but something else, most likely higher.\r<BR>\n" );
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document.write( "i would imagine phstat would have similar input requirements.\r<BR>\n" );
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document.write( "i used my version of excel to get descriptive statistics for the sample and i used existing excel commands to get the t-score of the sample and the p-value of the swample.\r<BR>\n" );
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document.write( "the results are shown below:\r<BR>\n" );
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document.write( "the results are consistent with the online calculator results.\r<BR>\n" );
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document.write( " </SPAN>\n" );
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