Question
In: Chemistry
Two methods were used to measure fluorescence emission of a dye and following data were obtained;...
Two methods were used to measure fluorescence emission of a dye and following data were obtained;
| Method1 | Method2 | |
| Mean | 13.83 | 13.54 |
| Standard deviation | 0.288 | 0.375 |
| # of measurements | 6 | 6 |
A) Are the std. deviations are significantly different?
B) Are the means are significantly different?
Solutions
queen_honey_blossom answered 2 years agoRelated Solutions
The following data were obtained from a study using two separate toothpastes. You used them on...
The following data were obtained from a study using two separate
toothpastes. You used them on the last homework in R. Now you will
work with them to compute the ANOVA by hand. Subjects in group I
received a fluoride-supplemented toothpaste for one year while
those in group II used one without added fluoride. At the end of
the trial period the number of cavities needing to be filled was
used as the dependant variable. A) Compute an analysis of...
Define and explain how two of the following three methods were used (or not used) by...
Define and explain how two of the following three methods were
used (or not used) by the consumers to estimate the overcharge in
the lysene cartel: before and after, cost-based and yardstick. [We
did not discuss the third in class, though it is about a different
type of comparison than the before and after method.]
The following data were obtained as averages of two trials each for two different unknown antacids...
The following data were obtained as averages of two trials each
for two different unknown antacids utilized in the experiment
presented in this lab. Remember, the procedure for this lab is
identical to the technique used for the titration/Volumetric
Analysis lab. Only, we have added the impact of an acid
neutralizing antacid to each experiment trial.
Just looking at the data, which antacid do you think is the
better one? Why? (note: the points from this question will be the...
what are methods used to measure ingredients and their units of measure
what are methods used to measure ingredients and their units of measure?
what are methods used to measure ingredients and their units of measure
what are methods used to measure ingredients and their units of measure
The following data was obtained from two independent samples for which sigma was unknown; they were...
The following data was obtained from two independent samples for
which sigma was unknown; they were selected from two normally
distributed populations.
Sample 1: 27, 39, 25, 33, 21, 35, 30, 26, 25, 31, 35, 30, 28
Sample 2: 24, 28, 23, 25, 24, 22, 29, 26, 29, 28, 19, 29
What is the point estimate for μ1- μ2?
Construct a 98% confidence interval for μ1- μ2.
Test at the 1% significance level whether the population mean
for the first...
The following data were obtained from a two‑factor independent-measures experiment. &n
The following data were obtained from a two‑factor
independent-measures experiment.
B1
B2
A1
M = 22
T = 440
SS = 1540
M = 15
T = 300
SS = 1270
n = 20 for all cells
A2
M = 17
T = 340
SS = 1320
M = 18
T = 360
SS = 1266
G =
1440
N =
80
ΣX2 = 31,836
- Following the steps of a hypothesis test, determine if...
DATA SET 2 The following data were obtained from a research study comparing two treatment conditions....
DATA SET 2
The following data were obtained from a research study comparing
two treatment conditions. Analyze this data to determine whether
you will reject or fail to reject the null hypothesis based upon
your results. Two-tailed test. Alpha = .05 (Please show work)
Treatment 1
Treatment 2
10
7
8
4
7
9
9
3
13
7
7
6
6
10
12
2
Which of the following experimental methods cannot be used to measure the rate of a reaction?...
Which of the following experimental methods cannot be used to
measure the rate of a reaction?
a. measurement of the change in the partial pressure of a
gas-phase reactant over time
b. measurement of the equilibrium concentration of an acidic
product via titration with a strong base
c. measurement of the absorbance of a colored reactant with
time
d. measurement of the absorbance of a colored product with
time
e. measurement of the change in the partial pressure of a...
For the reaction A + B + C → D The following data were obtained at...
For the reaction
A + B + C → D
The following data were obtained at constant temperature:
Trial
Initial [A] (mol/L)
Initial [B] (mol/L)
Initial [C] (mol/L)
Initial Rate (mol/L . s)
1
0.2790
0.1670
0.0334
1.190
2
0.5580
0.1670
0.0334
2.381
3
0.5580
0.3340
0.0334
9.524
4
0.2790
0.1670
0.0668
1.190
1. What is the order with respect to each
reactant? (Enter the order for A as Answer 1, that for B as Answer
2, and that for...
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