Answer well

A simple random sample of 49 Economics majors reported the number of hours that they spend per week studying economics (including lectures, sections, office hours and working on homework). The sample mean was 23 hours/week and the sample standard deviation was 7 hours/week. Assuming that the number of hours/week that economics majors spend studying economics has an approximately normal distribution. .. a. (2 pts) Estimate the proportion of economics majors that spend less than 30 hours per week studying economics. Explain your reasoning, briefly. b. (4 pts) Construct a 95%-confidence interval for the mean number of economics- studying hours/week for all economics majors.Determine if the following items represent an example of positive economics or normative economics. The richest 1% of Americans should pay more taxes than the rest of the 99%. O Positive Economics O Normative Economics O A decrease in the supply of coconut will increase the price of German Normative Economics chocolate cake, a good which requires coconut shavings as a key ingredient O Positive Economics The higher the minimum wage, the higher the price of goods and services Normative Economics is likely to bo. OO Positive Economics Social welfare spending in Sweden occupies too large a portion of the O Positive Economics national budget. O Normative EconomicsHow is economics different from sociology? O Economics does not rely on empirical observations. O Economics only focuses on macro level processes. O Economics is not a social science. O Economics concentrates on a single social institution.Welfare economics Economics with a heart. The study of how different forms of economic activity and different methods of allocating scarce resources affect the well being of different individuals or countries. WELFARE economics focuses on questions about EQUITY as well as EFFICIENCY