Refer to Exercise 6.55. What conditions must be satisfied in order to use the t procedur...

Refer to Exercise 6.55. What conditions must be satisfied in order to use the t procedures to analyze the data? Use the accompanying summary data and plot to determine whether these conditions have been satisfied for the data in Exercise 6.55.

REFERENCE:

6.55: All persons running for public office must report the amount of money spent during their campaign. Political scientists have contended that female candidates generally find it difficult to raise money and therefore spend less in their campaign than male candidates. Suppose the accompanying data represent the campaign expenditures of a randomly selected group of male and female candidates for the state legislature. Do the data support the claim that female candidates generally spend less in their campaigns for public office than male candidates?

a. State the null and alternative hypotheses in

i. Plain English

ii. Statistical terms or symbols

b. Estimate the size of the difference in campaign expenditures for female and male candidates.

c. Is the difference statistically significant at the .05 level?

d. Is the difference of practical significance?