of age, expressed in logarithmic terms). Data across 150 countries were collected and the following regression was estimated: alone and a unit increase in GNP alone is significant or not. The t-statistic of the test the researcher wants to conduct keeping other variables constant will be (Round your answer to two decimal places. Enter a minus sign if your answer is negative.) At the 5% significance level, the researcher should the hypothesis that the effect on IMR of FemLit does not significantly depend case. Suppose the values of GNP and FemLit are $5.60 thousand and 45%, respectively. The effect on IMR of an increase in GNP by $1,000 in this case would be than the effect on IMR of this increase when the interaction term was included in the regression by (Round your answer to two decimal places.) of age, expressed in logarithmic terms). Data across 150 countries were collected and the following regression was estimated: alone and a unit increase in GNP alone is significant or not. The t-statistic of the test the researcher wants to conduct keeping other variables constant will be (Round your answer to two decimal places. Enter a minus sign if your answer is negative.) At the 5% significance level, the researcher should the hypothesis that the effect on IMR of FemLit does not significantly depend case. Suppose the values of GNP and FemLit are $5.60 thousand and 45%, respectively. The effect on IMR of an increase in GNP by $1,000 in this case would be than the effect on IMR of this increase when the interaction term was included in the regression by (Round your answer to two decimal places.)