Tire pressure (in kPa) was measured for the right and left front tires on a sample of
Question:
Right Tire Left Tire
Pressure Pressure
184...................................185
206...................................203
193...................................200
227...................................213
193...................................196
218...................................221
213...................................216
194...................................198
178...................................180
207...................................210
a. Find a 95% confidence interval for ρ, the population correlation between the pressure in the right tire and the pressure in the left tire.
b. Can you conclude that ρ > 0.9?
c. Can you conclude that ρ > 0?
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