The quantity of dissolved exygen is a measure of water polution in lakes, ivers, and streams. Water samples were taken at four different locations in a river in an effort to determineater poluon varied from location to location. Location I was 500 meters above an industrial plant water discharge point and near the shore. Location I1 was 200 meters above the discharge point and in midstream. Location 1l was 5 meters downstream from the discharge point and near the shore. Location V was 200 meters downstream from the discharge point and in midstream. The following table shows the results. Lower dissolved oxygen readings mean more polution. Because of the dificuty in getting midstream samples, ecology students collecting the data had fewer of these samples. Use a 10% level of significance. Do we reject or not reject the daim that the quantity ef dissolved exygen dees not vary frem one lecation to another Location I Location II Lecation I Location IV 4.7 5.6 OWhat is the level of signifcance State the nul and alternate hypotheses OH ai N All four means are diferent. OH ai Exactly three means are equal. OMI H i MNot all the means are equal OMI MExactly two means are equa () Find SSor Sarn and sS and check that SSor Ssr SS (Use 3 decimal places.) SSar Find den d MSen and MS (Use 3 decimal places for MSen and MS - Find the value of the sample F statistic. (Use 3 decimal places.) what are the degrees or (nhumerator) |(denominator) () Find the Pvalue of the sample test statistic. Use 4decimal places.) O 4) Based on y canen in parts (a) te (eh w
The quantity of dissolved exygen is a measure of water polution in lakes, ivers, and streams. Water samples were taken at four different locations in a river in an effort to determineater poluon varied from location to location. Location I was 500 meters above an industrial plant water discharge point and near the shore. Location I1 was 200 meters above the discharge point and in midstream. Location 1l was 5 meters downstream from the discharge point and near the shore. Location V was 200 meters downstream from the discharge point and in midstream. The following table shows the results. Lower dissolved oxygen readings mean more polution. Because of the dificuty in getting midstream samples, ecology students collecting the data had fewer of these samples. Use a 10% level of significance. Do we reject or not reject the daim that the quantity ef dissolved exygen dees not vary frem one lecation to another Location I Location II Lecation I Location IV 4.7 5.6 OWhat is the level of signifcance State the nul and alternate hypotheses OH ai N All four means are diferent. OH ai Exactly three means are equal. OMI H i MNot all the means are equal OMI MExactly two means are equa () Find SSor Sarn and sS and check that SSor Ssr SS (Use 3 decimal places.) SSar Find den d MSen and MS (Use 3 decimal places for MSen and MS - Find the value of the sample F statistic. (Use 3 decimal places.) what are the degrees or (nhumerator) |(denominator) () Find the Pvalue of the sample test statistic. Use 4decimal places.) O 4) Based on y canen in parts (a) te (eh w
Holt Mcdougal Larson Pre-algebra: Student Edition 2012
1st Edition
ISBN:9780547587776
Author:HOLT MCDOUGAL
Publisher:HOLT MCDOUGAL
Chapter1: Variables, Expressions, And Integers
Section1.5: Adding Integers
Problem 45E
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