questions 5-8 please

A researcher wants to investigate the relationship between health and economic development and downloads the following data for 20 countries on life expectancy and GDP per capita in 2018. Country Bangladesh Belarus Belgium Benin Bolivia Italy Japan Jordan Kazakhstan Kenya Netherlands New Zealand Nicaragua Niger Nigeria United States Uruguay Uzbekistan Vietnam Zambia Life Expectancy at birth 73.4 74.3 81.5 64.9 73.1 83.3 84.4 79.5 72.5 66.3 81.7 81.8 79 62.8 64.8 78.6 77.2 70.5 74.6 63.7 GDP PC (PPP USD) 4440 18900 51200 3160 8660 42200 41100 9850 25500 4200 56500 42600 5690 1200 5160 61400 21600 6760 7590 3520 To cover in Week 10 5. Obtain the standard errors and the 95% confidence interval of the slope estimate. 6. Is the slope of the regression significantly different from zero at 1%? Interpret how this result affects your interpretation of the slope. 7. Test whether R2 is significantly different from zero at 5% level. 8. The researcher claims that governments should invest more in health as these results suggest that policies that increase life expectancy will generate an increase in GDP per capita. Do you agree? A researcher wants to investigate the relationship between health and economic development and downloads the following data for 20 countries on life expectancy and GDP per capita in 2018. Country Bangladesh Belarus Belgium Benin Bolivia Italy Japan Jordan Kazakhstan Kenya Netherlands New Zealand Nicaragua Niger Nigeria United States Uruguay Uzbekistan Vietnam Zambia Life Expectancy at birth 73.4 74.3 81.5 64.9 73.1 83.3 84.4 79.5 72.5 66.3 81.7 81.8 79 62.8 64.8 78.6 77.2 70.5 74.6 63.7 GDP PC (PPP USD) 4440 18900 51200 3160 8660 42200 41100 9850 25500 4200 56500 42600 5690 1200 5160 61400 21600 6760 7590 3520 To cover in Week 10 5. Obtain the standard errors and the 95% confidence interval of the slope estimate. 6. Is the slope of the regression significantly different from zero at 1%? Interpret how this result affects your interpretation of the slope. 7. Test whether R2 is significantly different from zero at 5% level. 8. The researcher claims that governments should invest more in health as these results suggest that policies that increase life expectancy will generate an increase in GDP per capita. Do you agree