Question
In: Statistics and Probability
I have the following data for a sample of 97 observations: 7.541026821 8.926230102 10.66501886 10.70044938 7.956283275...
I have the following data for a sample of 97 observations:
| 7.541026821 |
| 8.926230102 |
| 10.66501886 |
| 10.70044938 |
| 7.956283275 |
| 10.61170212 |
| 9.013674877 |
| 7.457787808 |
| 8.688519181 |
| 9.632112384 |
| 9.585695504 |
| 9.661098603 |
| 7.987363009 |
| 10.64290021 |
| 9.985713946 |
| 9.352236341 |
| 9.394775142 |
| 6.663463744 |
| 9.505301628 |
| 8.041563811 |
| 9.906639101 |
| 10.21807709 |
| 10.23849978 |
| 10.64519906 |
| 9.375470888 |
| 9.28112392 |
| 8.924667301 |
| 10.13189828 |
| 8.922899661 |
| 10.56735151 |
| 10.52283869 |
| 10.67374994 |
| 8.259466163 |
| 10.10803962 |
| 8.862558719 |
| 8.399596126 |
| 10.03949973 |
| 10.6273945 |
| 8.563698921 |
| 9.13285679 |
| 9.621790681 |
| 10.71288419 |
| 10.33937999 |
| 10.43902256 |
| 9.060291049 |
| 10.4805028 |
| 9.341939048 |
| 10.39537826 |
| 8.042335304 |
| 8.448344608 |
| 9.99079159 |
| 7.821488236 |
| 10.10571801 |
| 11.38210373 |
| 7.370965478 |
| 10.26909988 |
| 9.720033275 |
| 8.416385302 |
| 9.119573483 |
| 8.848977205 |
| 6.975063097 |
| 9.135161225 |
| 7.683767515 |
| 10.71318574 |
| 8.410446536 |
| 11.04208977 |
| 8.401574648 |
| 8.966110305 |
| 9.341060957 |
| 8.752457615 |
| 10.0378971 |
| 10.15017686 |
| 9.809193475 |
| 10.06748423 |
| 7.262885432 |
| 7.682518025 |
| 9.464422514 |
| 7.309646373 |
| 10.17592956 |
| 10.22469405 |
| 9.401419707 |
| 10.36079783 |
| 9.151199246 |
| 10.68604638 |
| 10.90957268 |
| 7.448984676 |
| 9.541930099 |
| 10.29110612 |
| 9.284300775 |
| 9.834144485 |
| 7.220975782 |
| 9.048763914 |
| 10.51913549 |
| 10.84623495 |
| 9.850393508 |
| 9.776483281 |
| 8.242635401 |
| Mean | 9.37485914 |
| Median | 9.505301628 |
| Minimum | 6.663463744 |
| Maximum | 11.38210373 |
| Variance | 1.199349814 |
| Standard Deviation | 1.095148307 |
I now need to find out the Skewness. However I cannot use Excel's built in functions(=Skew) or Data Tool. How can I write the formula in an Excel cell to find the skewness? I know the result should be -0.52
Solutions
orchestra answered 2 years agoRelated Solutions
Consider the following sets of sample data: A: 145, 126, 120, 97, 123, 119, 115, 96,...
Consider the following sets of sample data: A: 145, 126, 120,
97, 123, 119, 115, 96, 134, 125, 96, 125, 145, 106
B: 4.09, 4.49, 4.52, 4.62, 4.15, 2.93, 3.91, 4.88, 4.54, 4.66,
4.44
Step 1 of 2 : For each of the above sets of sample data,
calculate the coefficient of variation, CV. Round to one decimal
place.
A sample of 34 paired observations generates the following data: d− d − = 0.8 and...
A sample of 34 paired observations generates the following data:
d− d − = 0.8 and s2D s D 2 = 4.4. Assume a normal distribution.
(You may find it useful to reference the appropriate table: z table
or t table) a. Construct the 99% confidence interval for the mean
difference μD. (Round intermediate calculations to at least 4
decimal places and final answers to 2 decimal places.) b. Using the
confidence interval, test whether the mean difference differs from...
CO6) What is the 97% confidence interval for a sample of 104 soda cans that have...
CO6) What is the 97% confidence interval for a sample
of 104 soda cans that have a mean amount of 15.10 ounces and a
population standard deviation of 0.08 ounces?
@See text page 301
(15.940, 15.260)
(15.083, 15.117)
(15.020, 15.180)
(12.033, 12.067)
Suppose you have a sample of 36 observations with the sample mean = 2 and the...
Suppose you have a sample of 36 observations with the sample
mean = 2 and the sample standard deviation = 7. Compute the
t-statistic corresponding to these values for the null hypothesis
that mean = 0. Test two-sided alternative hypothesis that mean 6=
0. Do you reject the null hypothesis at p = 0:05? At p = 0:01? If
the sample size is reduced to 25, do you get the same
conclusions?
The following is a small data set of 25 observations. I want you to calculate some...
The following is a small data set of 25
observations. I want you to calculate some statistics by
hand to cement the class material. You can use the regular formula
for the variance or the computational formula - I’m just interested
in the correct result. If you use the computational formula, you
will want to calculate a separate row of each value squared in
order to calculate the Sum(x^2). Excel can be used to solve
this problem.
VarX
44
34...
The following is a small data set of 25 observations. I want you to calculate some...
The following is a small data set of 25
observations. I want you to calculate some statistics by
hand to cement the class material. You can use the regular formula
for the variance or the computational formula - I’m just interested
in the correct result. If you use the computational formula, you
will want to calculate a separate row of each value squared in
order to calculate the Sum(x^2). Excel can be used to solve
this problem.
VarX
44
34...
A random sample of five observations from three normally distributed populations produced the following data:
A random sample of five observations from three normally distributed populations produced the following data: (You may find it useful to reference the F table.)
Treatments
A
B
C
24
18
31
26
21
27
19
27
21
24
23
16
30
...
A sample of 18 observations taken from a normally distributed population produced the following data: 28.5...
A sample of 18 observations taken from a normally distributed
population produced the following data:
28.5
27.5
25.3
25.3
31.3
23.3
26.2
24.5
28.3
37.4
23.9
28.8
27.5
25.5
27.1
25.5
22.7
22.7
Round your answers to three decimal places.
a. What is the point estimate of μ?
x¯=
b. Make a 90% confidence interval for μ.
c. What is the margin of error of estimate for μ
in part b?
E=
The following sample observations were randomly selected:
The following sample observations were randomly selected:12345X:213832Y:18132249 a. Not available in Connect.b. Determine the regression equation.(Negative answer should be indicated by a minus sign. Do
not round intermediate calculations. Round the final answers to 4
decimal places.) b = a =Y' = + X c. Determine the value of Y' whenX is 11. (Do not round intermediate calculations.
Round the final answer to 4 decimal places.)
These data are observations collected using a completely randomized design. Sample 1 Sample 2 Sample 3...
These data are observations collected using a completely
randomized design.
Sample 1
Sample 2
Sample 3
4
4
2
2
3
0
4
5
2
3
2
1
2
6
(a) Calculate CM and Total SS. (Round your answer for CM to six
decimal places and your Total SS to four decimal places.
(b) Calculate SST and MST. (Round your answers to four decimal
places.)
(c) Calculate SSE and MSE. (Round your answers to four decimal
places.)
(d) Construct an...
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