I Know That Men Are Usually the Gender Portrayed as All

I know that men are usually the gender portrayed as all amped up and hyper, but in my experience as a commuter (from Oakland to Santa Clara) I must say that it seems women drive faster than men, on average. To see if I am correct, I solicited the help of the Highway Patrol one day. I sat with an officer and we used a radar gun to measure the speeds of 16 randomly selected male drivers and 16 randomly selected female drivers on the same stretch of Interstate 880. We found that our sample of male drivers had an average speed of 68 mph with a standard deviation of 15. Our sample of female drivers had an average speed of 71 MPH with a standard deviation of 10.
b. State the null and alternative hypotheses
c. Chose an alpha level.
d. What exactly does this alpha level mean?
e. Decide whether you are doing a 1-tailed or 2-tailed test (explain why)
f. State your degrees of freedom
g. Find and report your critical value for t.
h. Compute your observed t-value.
i. Wrap words around your results. Is this a statistically significant difference?
j. Calculate an effect size (d).

Correct Answer:

Verified

b. Ho: ₁ = _{2 ...}

View Answer

Unlock this answer now
Get Access to more Verified Answers free of charge

View Full Answer For Free