What is the difference in cross-sectional, longitudinal and
time-lag comparison research design? Explain the research designs
and give an example of each
A bridge design firm is performing an economic analysis of two
mutually exclusive designs for a highway overpass. The steel girder
option has an initial cost of $2.03 million, and the concrete
option has an initial cost of $2.42 million. Every 25 years, the
steel bridge must be painted at a cost of $420,000, and all other
maintenance costs are the same for both options. The steel bridge
is expected to last 50 years, and concrete bridge is expected to...
**Experimental Research Design**
Explain the general advantages and disadvantages of
within-subjects designs compared to between-subjects designs. Give
an example of a study using one of the designs and explain why that
design is best for the proposed study.
For the following 2 groups, do a power analysis to determine the
statistical power at the p=0.05 and p=0.01 levels. For the power
analysis, seek power for a difference in means of 2.79. Repeat the
statistical analysis using 95% and 99% confidence intervals.
[11.540 8.203 8.214 13.165 11.451 13.015 11.060 10.488 8.849
8.271]
[4.708 8.013 9.886 7.026 6.051 5.546 7.914 9.951 9.880
7.381]
For the following 2 groups, do a power analysis to determine the
statistical power at the p=0.05 and p=0.01 levels. For the power
analysis, seek power for a difference in means of 2.79. Repeat the
statistical analysis using 95% and 99% confidence intervals.
[11.540 8.203 8.214 13.165 11.451 13.015 11.060 10.488 8.849
8.271]
[4.708 8.013 9.886 7.026 6.051 5.546 7.914 9.951 9.880
7.381]
1. Explain Purchasing Power Parity.
2. Suppose Russia's inflation rate is 200% over one year but the
inflation rate in Switzerland is only 2%. According to relative
PPP, what should happen over the year to the Swiss franc's exchange
rate against the Russian ruble?
3. In order for the condition E$/HK$ = PUS/PHK to hold, what
assumptions does the principle of purchasing power parity make?
Please note HK means Hong Kong.