Question

The density of pepsi (actual density= 1.04 g/mL) was analyzed using a buret and a micropipet. The results are presented below. Buret: 1.0456 g/mL, 1.04364 g/mL, 1.04966 g/mL, 1.04173 g/mL, 1.0392 g/mL Micropipet: 1.0163 g/mL, 1.027 g/mL, 1.00942 g/mL, 1.01868 g/mL, 1.0262 g/mL For each tool, calculate the average, sample standard deviation, %RSD, 95% confidence Interval and percent error. Include the units or, after a space, the percent symbol where required. buret: average = 1.0439 g/mL standard deviation = 0.003965 g/mL %RSD = 0.379884 % 95% confidence Interval = 0.003476 g/mL % error = 0.381346 % micropipet: average = 1.0195 g/mL standard deviation = 0.007308 g/mL %RSD = 0.7169 % 95% confidence interval = % error = 1.9692 % 

          The density of pepsi (actual density= 1.04 g/mL) was analyzed using a buret and a micropipet. The results are presented below.
Buret: 1.0456 g/mL, 1.04364 g/mL, 1.04966 g/mL, 1.04173 g/mL, 1.0392 g/mL
Micropipet: 1.0163 g/mL, 1.027 g/mL, 1.00942 g/mL, 1.01868 g/mL, 1.0262 g/mL
For each tool, calculate the average, sample standard deviation, %RSD, 95% confidence Interval and percent error. Include the units or, after a space, the percent symbol where required.
buret:
average = 1.0439 g/mL
standard deviation = 0.003965 g/mL
%RSD = 0.379884 %
95% confidence Interval = 0.003476 g/mL
% error = 0.381346 %
micropipet:
average = 1.0195 g/mL
standard deviation = 0.007308 g/mL
%RSD = 0.7169 %
95% confidence interval = 
% error = 1.9692 %
Show more…
The density of pepsi (actual density= 1.04 g/mL) was analyzed using a buret and a micropipet. The results are presented below. Buret: 1.0456 g/mL, 1.04364 g/mL, 1.04966 g/mL, 1.04173 g/mL, 1.0392 g/mL Micropipet: 1.0163 g/mL, 1.027 g/mL, 1.00942 g/mL, 1.01868 g/mL, 1.0262 g/mL For each tool, calculate the average, sample standard deviation, %RSD, 95% confidence Interval and percent error. Include the units or, after a space, the percent symbol where required. buret: average = 1.0439 g/mL standard deviation = 0.003965 g/mL %RSD = 0.379884 % 95% confidence Interval = 0.003476 g/mL % error = 0.381346 % micropipet: average = 1.0195 g/mL standard deviation = 0.007308 g/mL %RSD = 0.7169 % 95% confidence interval = % error = 1.9692 %

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Chemistry: Structure and Properties
Chemistry: Structure and Properties
Nivaldo Tro 2nd Edition
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I need help with only the 95% confidence interval!!! The density of Pepsi (actual density x=1.04(g)/(m)L) was analyzed using a buret and a micropipette. The results are presented below. Buret: 1.0456(g)/(m)L, 1.04364(g)/(m)L, 1.04966(g)/(m)L, 1.04173(g)/(m)L, 1.0392(g)/(m)L Micropipette: 1.0163(g)/(m)L, 1.027(g)/(m)L, 1.00942(g)/(m)L, 1.01868(g)/(m)L, 1.0262(g)/(m)L Buret: average = standard deviation = % RSD = 95% confidence interval = % error = Micropipette: average = standard deviation = % RSD = 95% confidence interval = % error = The density of Pepsi actual density[-1.04 g/mL was analyzed using a buret and a micropipette. The results are presented below. Buret: 1.0456 g/mL, 1.04364 g/mL, 1.04966 g/mL, 1.04173 g/mL, 1.0392 g/mL Micropipette: 1.0163 g/mL, 1.027 g/mL, 1.00942 g/mL, 1.01868 g/mL, 1.0262 g/mL For each tool, calculate the average, sample standard deviation, %RSD, 95% confidence interval, and percent error. Include the units or, after a space, the percent symbol where required Buret: standard deviation = 0.003965 g/mL %RSD = 0.379884% 95% confidence interval = 0.003476 g/mL % error = 0.381346% average = 1.0439 g/mL Micropipette: average = 1.0195 g/mL standard deviation = 0.07308 g/mL %RSD = 0.7169% 95% confidence interval = % error = 1.9692%
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Transcript

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00:01 Here are the summary statistics for the weights of pepsi and randomly selected cans.
00:06 So we have 36 cans.
00:10 Our sample mean is .82407.
00:19 And our standard deviation is .00572.
00:27 Use a confidence level of 95 % to complete parts a through, in our case, d.
00:39 So part a is find the critical value.
00:42 So t of .05 divided by 2 is what we're going to be looking for.
00:48 In our case, it will be with a degree of freedom.
00:51 So i'm going to add a little bit more to that...
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