What are some basic research designs? Elaborate them in some detail.

Uknow what i love about i ask a dumb question it is immediately answered but when i ask a real question it take like an hour to get answered

Anewspaper story on the effect of higher milk prices on the market for ice cream contained the following: "as a result [of the increase in milk prices], retail prices for ice cream are up 4 percent from last year. . and ice cream consumption is down 3 percent." source: john curran, "ice cream, they scream: milk fat costs drive up ice cream prices," associated press, july 23, 2001. based on the information given, what is the price elasticity of demand for ice cream?

A) maklumat di bawah menunjukkan beberapa kos yang terlibat dalam proses pengeluaran sesebuah firma-kain sutera-cukai jualan-sewa kilang-insurans kebakarani) berdasarkan maklumat di atas, apakah jenis kos yang terlibat? ii) apakah perbezaan antara kos kain sutera dan kos sewa kilang