1 |
n |
16 |
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|
2 |
mean |
8.96 |
8.9625 |
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|
3 |
stdev |
0.38 |
0.3757 |
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4 |
p(ѵ ≤ 8.5) = |
0.11 |
0.1092 |
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5 |
p(ѵ ≥ 10.0) |
0.0029 |
0.0029 |
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6 |
p(ѵ ≤ )=0.20 |
8.65 |
8.6463 |
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7 |
stand error |
0.09 |
0.0939 |
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8 |
tc |
2.13 |
2.1314 |
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9 |
E |
0.2 |
0.2002 |
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10 |
p( |
8.76 |
|
9.16 |
) = 0.95 |
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p( |
8.7623 |
≤ µ ≤ |
9.1627 |
) = 0.95 |
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11 |
inc 8.73? |
no |
8.73 is NOT a possible pop mean for the given data |
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12 |
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faster |
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Homework 10.2 due 09 April 2010: |
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Write the null hypothesis |
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Write the alternate hypothesis |
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Use alpha of 0.05 |
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Calculate tc |
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Calculate t-statistic t |
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Do you “reject the null hypothesis” OR “fail to reject the null hypotheis”? |
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Dist |
Speed |
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|
Speed |
|
Speed (kph) |
|
10.3 |
8.8 |
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|
8.25 |
<tr><td class="n"> |
8.2 |
</td></tr> |
10.3 |
8.77 |
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|
8.52 |
<tr><td class="n"> |
8.5 |
</td></tr> |
10.4 |
9.19 |
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|
8.67 |
<tr><td class="n"> |
8.7 |
</td></tr> |
10.4 |
9.68 |
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|
8.68 |
<tr><td class="n"> |
8.7 |
</td></tr> |
10.4 |
8.89 |
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8.7 |
<tr><td class="n"> |
8.7 |
</td></tr> |
10.4 |
9 |
|
|
8.77 |
<tr><td class="n"> |
8.8 |
</td></tr> |
10.5 |
8.68 |
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8.8 |
<tr><td class="n"> |
8.8 |
</td></tr> |
10.6 |
9.44 |
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8.89 |
<tr><td class="n"> |
8.9 |
</td></tr> |
10.9 |
8.67 |
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9 |
<tr><td class="n"> |
9 |
</td></tr> |
11.5 |
8.25 |
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|
9.09 |
<tr><td class="n"> |
9.1 |
</td></tr> |
11.5 |
8.7 |
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9.1 |
<tr><td class="n"> |
9.1 |
</td></tr> |
11.5 |
9.1 |
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9.19 |
<tr><td class="n"> |
9.2 |
</td></tr> |
11.5 |
9.3 |
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|
9.27 |
<tr><td class="n"> |
9.3 |
</td></tr> |
11.5 |
9.27 |
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9.3 |
<tr><td class="n"> |
9.3 |
</td></tr> |
12.8 |
9.09 |
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|
9.44 |
<tr><td class="n"> |
9.4 |
</td></tr> |
13 |
8.52 |
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9.68 |
<tr><td class="n"> |
9.7 |
</td></tr> |
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March 2009 |
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skew |
0.08 |
|
-0.04 |
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Dist |
Speed |
|
kurt |
-0.15 |
|
0.1 |
|
10.44 |
8.44 |
|
mode |
|
|
8.7 |
|
11.5 |
8.82 |
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median |
8.95 |
|
8.95 |
|
12.69 |
8.67 |
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mean |
9.04 |
|
9.05 |
|
13.48 |
9.24 |
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stdev |
0.37 |
|
0.38 |
|
16.7 |
8.46 |
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|
8.67 |
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mean: |
8.73 |
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|
9.8 |
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min |
8.25 |
|
8.2 |
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max |
9.68 |
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9.7 |
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range |
1.43 |
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1.5 |
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classes |
5 |
|
5 |
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width |
0.29 |
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0.3 |
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cul |
cul |
f |
f rnd |
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8.53 |
8.5 |
2 |
2 |
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8.82 |
8.8 |
5 |
5 |
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9.11 |
9.1 |
4 |
4 |
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9.39 |
9.4 |
3 |
4 |
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9.68 |
9.7 |
2 |
1 |
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16 |
16 |
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