1.Suppose it's reported that the average gas price in Ohio is $2.10 per gallon. You believe it's lower than that. Your random sample of 100 gas stations in Ohio has an average gas price of $1.98 per gallon. Assume the standard deviation of all gas prices is .50. What is the test statistic?

a.1.98

b.2.40

c.-2.40

d.None of the above.

2.After you find the Z-score, you find the probability of being at or beyond it, in the direction of your alternative hypothesis. What is this probability called?

a.p-value

b.H₀ probability

c.Significance level

d.None of the above

STAT 1430 Recitation 13B Hypothesis Testing for Mean 7. Suppose it's reported that the average gas price in Ohio is $2.10 per gallon. You believe it's lower than that. Your random sample of 100 gas stations in Ohio has an average gas price of $1.98 per gallon. Assume the standard deviation of all gas prices is .50. What is the test statistic? a. 1.98 b. 2.40 C. -2.40 d. None of the above. 8. *** *** *** ** * * 9. After you find the Z-score, you find the probability of being at or beyond it, in the direction of your alternative hypothesis. What is this probability called? a. p-value b. Ho probability c. Significance level d. None of the above