Past research has indicated that the average age of 1. researcher would like to determine if the average age has changed. She randomly selects 50 death row inmas and ds their average age to be 37 years old. The hypothesis the statistician wants to test is: Ho:u = 37 vs Ha:µ#41. b. a. Ho: u = 41 vs Ha:µ<41. Ho:u=41 vs. H:u# 41 d. Ho: ju=37 vs_Ha: µ<41. c.

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Past research has indicated that the average age of death row inmates is 41 years old.
researcher would like to determine if the average age has changed. She randomly selects 50
death row inma s and ds their average age to be 37 years old. The hypothesis the statistician
wants to test is:
a. Ho: µ=37 vs_ Ha: µ ± 41.
b. Ho: µ=41 vs Ha: µ< 41.
Ho: u = 41 vs. H: u 41
d. Ho: µ=37 vs_Ha: µ< 41.
C.
2. If a player at a casino is playing roulette and betting on red, there is a 18 / 38 or 0.474 chance
that he will win on any spin of the roulette wheel. If we take a random sample of 300 players
betting on red, then p is the proportion of times that the player wins.
What is the mean of the sampling distribution of p? t'
a.
b.
What is the standard deviation (os) of the sampling distribution of p?
c. If repeated samples of 300 players are taken, what would be the range of the sample
proportion of players victories according to the 95 part of the 68-95-99.7 rule"
pts)
3. The z statistic for a one-sided test is 1.92. This test is (.
Not statistically significant at either a = 0.05 or a=0.01.
b.
a.
Statistically significant at a = 0.05 but not a = 0.01.
Statistically significant at both a = 0.05 and a= 0.01.
d. Statistically significant at a = 0.01 but not a = 0.05.
с.
Transcribed Image Text:Past research has indicated that the average age of death row inmates is 41 years old. researcher would like to determine if the average age has changed. She randomly selects 50 death row inma s and ds their average age to be 37 years old. The hypothesis the statistician wants to test is: a. Ho: µ=37 vs_ Ha: µ ± 41. b. Ho: µ=41 vs Ha: µ< 41. Ho: u = 41 vs. H: u 41 d. Ho: µ=37 vs_Ha: µ< 41. C. 2. If a player at a casino is playing roulette and betting on red, there is a 18 / 38 or 0.474 chance that he will win on any spin of the roulette wheel. If we take a random sample of 300 players betting on red, then p is the proportion of times that the player wins. What is the mean of the sampling distribution of p? t' a. b. What is the standard deviation (os) of the sampling distribution of p? c. If repeated samples of 300 players are taken, what would be the range of the sample proportion of players victories according to the 95 part of the 68-95-99.7 rule" pts) 3. The z statistic for a one-sided test is 1.92. This test is (. Not statistically significant at either a = 0.05 or a=0.01. b. a. Statistically significant at a = 0.05 but not a = 0.01. Statistically significant at both a = 0.05 and a= 0.01. d. Statistically significant at a = 0.01 but not a = 0.05. с.
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