Education Level Source of News Primary Secondary Graduate Post Graduate Total Newspapers 95 200 121 400 816 Television 136 127 135 211 609 Social Media 155 99 170 146 570 Grapevine 250 135 95 25 505 Total 636 561 521 782 2500 c. Show all of the work necessary to calculate the appropriate statistic.

Education Level Source of News Primary Secondary Graduate Post Graduate Total Newspapers 95 200 121 400 816 Television 136 127 135 211 609 Social Media 155 99 170 146 570 Grapevine 250 135 95 25 505 Total 636 561 521 782 2500 c. Show all of the work necessary to calculate the appropriate statistic.

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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Several methods of estimating the number of seeds in soil samples have been developed by ecologists. An article gave the accompanying data on the number of seeds detected by the direct method and by the stratified method for 27 soil specimens. Specimen Direct Stratified 1 21 6 2 32 38 3 0 6 4 60 58 5 20 52 6 61 61 7 40 26 8 6 6 9 12 6 10 92 100 11 1 0 12 66 58 13 78 66 14 21 52 Specimen Direct Stratified 15 32 26 16 0 0 17 38 38 18 18 12 19 92 92 20 1 12 21 40 46 22 21 21 23 0 0 24 6 12 25 12 40 26 18 12 27 40 78 Do the data provide sufficient evidence to conclude that the mean number of seeds detected differs for the two methods? Test the relevant hypotheses using ? = 0.05. (Use ?direct − ?stratified.) Find the test statistic. (Round your answer to two decimal places.) t = Find the df. (Round your answer down to the nearest whole number.) df = Use technology to find the P-value. (Round your answer to four…
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		Education	Level
Source of News	Primary	Secondary	Graduate	Post Graduate	Total
Newspapers	95	200	121	400	816
Television	136	127	135	211	609
Social Media	155	99	170	146	570
Grapevine	250	135	95	25	505
Total	636	561	521	782	2500