The table shows the day of the week for which 925 randomly selected fatal bicycl

Question

The table shows the day of the week for which 925 randomly selected fatal bicycle accidents occurred. At alpha = 0.05, can you reject the claim that the distribution is uniform? At alpha = 0.01, is there enough evidence to conclude that urban, suburban, and rural libraries and the speed of their internet access. Can you conclude that the metropolitan status of libraries and internet access speed are related? A random sample of the fuel consumption of 15 hybrids of manufacture A has a variance of 16.2. A random sample of the fuel consumption of 19 hybrids of manufacture B has a variance of 32.5. at alpha = 0.05, can you support the claim that the variance for fuel consumption for hybrids of manufacture A are less than the variance for fuel consumption for hybrids of manufacture B? The table shows the energy consumed (in millions of Btu) in one year for random sample of households from four regions of the USA. At alpha = 0.10 can you conclude that the mean energy consumption for at least one region is different from the others?

Explanation / Answer

Using Minita one sample t test.

One-Sample T: FREQUENCY

Test of = 822 vs 822

Variable   N   Mean StDev SE Mean     95% CI          T      P
FREQUENCY 6 137.0 121.7     49.7 (9.3, 264.7) -13.78 0.000

P-value < 0.05 so we reject null hypothesis.

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