What are the null and alternative hypotheses?
What are the null and alternative hypotheses?.
Listed below are annual data for various years. The data are weights(metric tons) of imported lemons and car crash fatality rates per 100,000 population. Construct a scatter plot, find the value of the linear correlation coefficient r, and find the P-value using α =0.05. Is there sufficient evidence to conclude that there is a linear correlation between lemon imports and crash fatality rates? Do the results suggest that imported lemons cause car fatalities?
Lemon Imports 228 264 357 484 533
Crash Fatality Rate 15.8 15.7 15.5 15.2 14.9
What are the null and alternative hypotheses?
Construct a scatterplot. Choose the correct graph below.
The linear correlation coefficient
The test statistic t is
The P-value is
Because the P-value is ? less greater than the significance level 0.05, there ? is not is
sufficient evidence to support the claim that there is a linear correlation between lemon imports and crash fatality rates for a significance level of a = 0.05.
Do the results suggest that imported lemons cause car fatalities?
A.The results suggest that an increase in imported lemons causes car fatality rates to remain the same.B.The results do not suggest any cause-effectrelationship between the two variables.C.The results suggest that an increase in imported lemons causes in an increase in car fatality rates.D. The results suggest that imported lemons cause car fatalities.
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