An Environmental Protection Agency study of 12 automobiles revealed a correlation of 0.47 between engine size and emissions. |
State the decision rule for .01 significance level: H0: ρ ≤ 0; H1: ρ > 0 (Round your answer to 3 decimal places.) |
Reject H0 if t > |
Compute the value of the test statistic. (Round your answer to 3 decimal places.) |
Value of the test statistic |
An Environmental Protection Agency study of 12 automobiles revealed a correlation of 0.47 between engine size...
A study of college soccer games revealed the correlation between the number of shots attempted and the number of goals scored to be 0.87 for a sample of 11 games. a. State the decision rule for 0.01 significance level: H0: ρ ≤ 0; H1: ρ > 0 (Round the final answer to 3 decimal places.) Reject H0 if t > b. Compute the value of the test statistic. (Round the final answer to 3 decimal places.) ...
A study of 20 worldwide financial institutions showed the correlation between their assets and pretax profit to be 0.86. (1) State the decision rule for 0.05 significance level: H0: ρ ≤ 0; H1: ρ > 0. (Round your answer to 3 decimal places.) Reject H0 if t > (2) Compute the value of the test statistic. (Round your answer to 3 decimal places.) Value of the test statistic
A study of 18 worldwide financial institutions showed the correlation between their assets and pretax profit to be 0.79. Can we conclude that there is a positive correlation between assets and pretax profit? 1-b. State the decision rule for 0.10 significance level: H0: ρ ≤ 0; H1: ρ > 0. (Round your answer to 3 decimal places.) Reject H0 if t > 2. Compute the value of the test statistic. (Round your answer to 2 decimal places.) 3. Can we...
The Airline Passenger Association studied the relationship between the number of passengers on a particular flight and the cost of the flight. It seems logical that more passengers on the flight will result in more weight and more luggage, which in turn will result in higher fuel costs. For a sample of 25 flights, the correlation between the number of passengers and total fuel cost was 0.672. (1) State the decision rule for 0.05 significance level: H0: ρ ≤ 0;...
The Airline Passenger Association studied the relationship between the number of passengers on a particular flight and the cost of the flight. It seems logical that more passengers on the flight will result in more weight and more luggage, which in turn will result in higher fuel costs. For a sample of 22 flights, the correlation between the number of passengers and total fuel cost was 0.640. 1. State the decision rule for 0.050 significance level: H0: ρ ≤ 0;...
For a sample of 40 large U.S. cities, the correlation between the mean number of square feet per office worker and the mean monthly rental rate in the central business district is −0.363. State the decision rule for .05 significance level: H0: ρ ≥ 0; H1: ρ < 0 (Negative value should be indicated by a minus sign. Round your answer to 3 decimal places.) Compute the value of the test statistic. (Negative value should be indicated by a minus...
A study of college soccer games revealed the correlation between the number of shots attempted and the number of goals scored to be 039 for a sample of 26 games Use Appendix B2 for the t-valuesaState the decision rule for 001 significance level: H0: ? ? 0; H1: ?> 0 (Round the final answer to 3 decimal places)Reject H0 if t> _______bCompute the value of the test statistic(Round the final answer to 3 decimal places)Value of the test statistic _______cWhat is the p-value?(Round the final answer to...
The Airline Passenger Association studied the relationship between the number of passengers on a particular flight and the cost of the flight. It seems logical that more passengers on the flight will result in more weight and more luggage, which in turn will result in higher fuel costs. For a sample of 20 flights, the correlation between the number of passengers and total fuel cost was 0.688. (1) State the decision rule for 0.02 significance level: H0: ρ ≤ 0;...
The following hypotheses are given. H0 : π ≤ 0.81 H1 : π > 0.81 A sample of 80 observations revealed that p = 0.95. At the 0.01 significance level, can the null hypothesis be rejected? State the decision rule. (Round your answer to 2 decimal places. Reject H0 if z > Compute the value of the test statistic. (Round your answer to 2 decimal places.)
The following hypotheses are given. HO: IT = 0.40 HAT+0.40 A sample of 120 observations revealed that p=0.30. At the 0.05 significance level, can the null hypothesis be rejected? a. State the decision rule. (Negative amounts should be indicated by a minus sign. Round your answers to 2 decimal places.) Reject HO and accept H1 when z< or z> b. Compute the value of the test statistic. (Negative amount should be indicated by a minus sign. Round your answer to...