. Two groups of experimental rats were injected with tranquilizer at 1.0 ng dose and at 1.5 mg dose, respectively. The time given in seconds that ook them to fall asleep is hereby given in the table below. B 1 Dosage A (1.0 mg) Dosage B (1.5 mg) 2 9.8 12 3 13.2 7.4 4 11.2 9.8 5 9.5 11.5 13 13 7 12.1 12.5 8. 9.8 9.8 9. 12.3 10.5

A random sample of n1 = 10 regions in New England gave the following violent crime rates (per million population). x1:      New England Crime Rate 3.3 3.9 4.2 4.1 3.3 4.1 1.8 4.8 2.9 3.1 Another random sample of n2 = 12 regions in the Rocky Mountain states gave the following violent crime rates (per million population). x2:      Rocky Mountain Crime Rate 3.7 4.1 4.7 5.5 3.3 4.8 3.5 2.4 3.1 3.5 5.2 2.8   Assume that the crime rate distribution is approximately normal in both regions. Do the data indicate that the violent crime rate in the Rocky Mountain region is higher than in New England? Use ? = 0.01. Solve the problem using both the traditional method and the P-value method. (Test the difference ?1 − ?2. Round the test statistic and critical value to three decimal places.) test statistic        critical value   Find (or estimate) the P-value. P-value > 0.250 0.125 < P-value < 0.250 0.050 < P-value < 0.125 0.025 < P-value < 0.050 0.005 <…

A random sample of n1 = 10 regions in New England gave the following violent crime rates (per million population). x1:      New England Crime Rate 3.3 3.9 4.2 4.1 3.3 4.1 1.8 4.8 2.9 3.1 Another random sample of n2 = 12 regions in the Rocky Mountain states gave the following violent crime rates (per million population). x2:      Rocky Mountain Crime Rate 3.7 4.1 4.7 5.5 3.3 4.8 3.5 2.4 3.1 3.5 5.2 2.8   Assume that the crime rate distribution is approximately normal in both regions. Do the data indicate that the violent crime rate in the Rocky Mountain region is higher than in New England? Use ? = 0.01. Solve the problem using both the traditional method and the P-value method. (Test the difference ?1 − ?2. Round the test statistic and critical value to three decimal places.) test statistic        critical value   Find (or estimate) the P-value. P-value > 0.2500.125 < P-value < 0.250    0.050 < P-value < 0.1250.025 < P-value < 0.0500.005 <…

The average life expectancy of tires 40,000 miles. The company has rece The manager hopes to find out wheth life test, 40 tires were used, and their following SPSS results: One-Sample Statistics Std. Dev Mean time 40881.8262 40 2945 One- df Sig. (2-taile 1.893 Set up Ho: M = 40,000 %3D HA: The test statistic is 1.893 The distribution of the test stati Make the statistical decision (o Express the statistical decision

A random sample of n1 = 10 regions in New England gave the following violent crime rates (per million population). x1:      New England Crime Rate 3.3 3.7 4.2 3.9 3.3 4.1 1.8 4.8 2.9 3.1 Another random sample of n2 = 12 regions in the Rocky Mountain states gave the following violent crime rates (per million population). x2:      Rocky Mountain Crime Rate 3.5 4.1 4.7 5.5 3.3 4.8 3.5 2.4 3.1 3.5 5.2 2.8   Assume that the crime rate distribution is approximately normal in both regions. Do the data indicate that the violent crime rate in the Rocky Mountain region is higher than in New England? Use ? = 0.01. Solve the problem using both the traditional method and the P-value method. (Test the difference ?1 − ?2. Round the test statistic and critical value to three decimal places.) test statistic        critical value   Find (or estimate) the P-value. A. P-value > 0.250 B. 0.125 < P-value < 0.250  C. 0.050 < P-value < 0.125 D. 0.025 < P-value <…

Which combination would lead you to Fail to Reject H0? α = .01 p-value = .005 α = .05 p-value = .051 α = .01   p-value = .009 α = .05  p-value = .048

NOTE: PLEASE ANSWER THE LAST ITEMS D TO G.

A random sample of n1 = 10 regions in New England gave the following violent crime rates (per million population). x1:      New England Crime Rate 3.3 3.9 4.2 4.1 3.3 4.1 1.8 4.8 2.9 3.1 Another random sample of n2 = 12 regions in the Rocky Mountain states gave the following violent crime rates (per million population). x2:      Rocky Mountain Crime Rate 3.5 4.1 4.5 5.5 3.3 4.8 3.5 2.4 3.1 3.5 5.2 2.8     Assume that the crime rate distribution is approximately normal in both regions. Do the data indicate that the violent crime rate in the Rocky Mountain region is higher than in New England? Use ? = 0.01. Solve the problem using both the traditional method and the P-value method. (Test the difference ?1 − ?2. Round the test statistic and critical value to three decimal places.)

A researcher wants to know whether athletic women are more flexible than non - athletic women. For this experiment, a woman who exercised vigorously at least four times per week was considered "athletic". Flexibility is measured in inches on a sit & reach box. A researcher tested his claim using the following summary statistics: Athletic women Non-athletic women n = 50 * = 5.0 inches s=1.4 inches Assume that all conditions for testing have been met. t = 1.626; p = 0.057 ; At the 1% significance level, state your decision regarding the null hypothesis and your conclusion about the original claim. n = 30 * = 4.6 inches s= 0.8 inches O A. Fail to reject the null hypothesis; there is not strong enough evidence to suggest that athletic women are more flexible, on average, than non-athletic women. O B. Reject the null hypothesis; there is strong evidence to suggest that non-athletic women are more flexible, on average, than athletic women. OC. Fail to reject the null hypothesis; there is…

An experiment was conducted to see the effectiveness of two antidotes to three different doses of a toxin.  The antidote was given to a different sample of participants five minutes after the toxin.  Thirty minutes later the response was measured as the concentration in the blood.  What can the researchers conclude with α = 0.05?   Dose Antidote 5 10 15 1 0.61.11.1 7.21.52.4 3.14.15.9 2 1.11.21.1 1.71.31.5 2.13.12.1   A) Obtain/compute the appropriate values to make a decision about H0.Antidote: critical value =  test statistic = Decision:   Dose: critical value =  test statistic = Decision:   Interaction: critical value =    test statistic = Decision:     B) Compute the corresponding effect size(s) and indicate magnitude(s).Antidote:  η2 =  Dose:  η2 = Interaction:  η2 =