Assume an economy experienced a positive rate of inflation between 2003 and 2004 and again between 2004 and 2005. however, the inflation rate was lower between 2004 and 2005 than it was between 2003 and 2004. which of the following scenarios is consistent with this assumption?
a. the cpi was 100 in 2003, 120 in 2004, and 135 in 2005.
b. the cpi was 100 in 2003, 90 in 2004, and 88 in 2005.
c. the cpi was 100 in 2003, 105 in 2004, and 130 in 2005.
d. the cpi was 100 in 2003, 110 in 2004, and 105 in 2005.

Alarge university wanted to study the relationship between completing an internship during college and students' future earning potential. prom the same graduating class, they selected a random sample of 80 students who completed an internship and 100 students who did not complete an internship and examined their salaries five years after graduation. they found that there was a statistically higher mean salary for the internship group than for the noninternship group. which of the following interpretations is the most appropriate? a. there could be a confounding variable, such as student major, that explains the difference in mean salary between the internship and no internship groups.b. we cannot infer anything from these data since the distribution of salaries is likely right skewed.c. you cannot draw any valid conclusions because the sample sizes are different.d. more students should complete internships because having an internship produces a higher salary.