There is evidence of significant difference between males and females in the
population that enjoy shopping for clothing at the 0.01 level of significant.
There is evidence of significant difference between males and females in the
population that enjoy shopping for clothing at the 0.05 level of significant.
There is evidence of significant difference between males and females in the
population that enjoy shopping for clothing at the 0.10 level of significant.
All of the above
Only (B) and (C)
The Central Limit Theorem is important in statistics because
for a large n, it says the population is approximately normal.
for any size sample, it says the sampling distribution of the sample mean is
approximately normal.
for a large n, it says the sampling distribution of the sample mean is approximately
normal, regardless of the shape of the population.
for a small n, it says the sampling distribution of the sample mean is approximately
t-distributed
None of the above
(1835.5, 2164.5)
(1864, 2196)
(1814.1, 2185.9)
(1816.7, 2183.3)
(1769.4, 2230.6)
At the 0.05 level of significant, there is evidence of a difference in the mean rating
scores.
The p-value of the test is less than 0.02
At the 0.01 level of significant, there is evidence of a difference in the mean rating
scores.
Z table will be used for testing the hypothesis.
None of the above
Suzuki (鈴木) and Matsui (松井) are baseball players. Suzuki had a higher batting
average (註:batting average 打擊率) than Matsui in 2008 and 2009. Is it possible that
for the combined data for these two years, Matsui had higher batting average? Explain,
and illustrate using data. (10%)
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