Aproposed null hypothesis states that there is no difference in the population mean heights of males of two neighboring towns. the sample mean difference is found to be 10 cm, and the standard deviation of the difference of the sample means is 6 cm. which statement is true? a. the null hypothesis must be rejected if we choose the 68% confidence level. b. the null hypothesis must be rejected if we choose the 95% confidence level. c. the null hypothesis must be rejected if we choose the 99.7% confidence level. d. the null hypothesis must be rejected if we choose the 100% confidence leve.

there are several different forms of presenting this; each has a very specific format. plays have a very simple format; teleplays, for television shows, or screenplays, for movies, have more complex and strict rules for formatting.

drama

the first of these to be written for the express purpose of being performed were created by the greeks. many of our modern terms derive from greek origins.

comedy

in the greek sense, a play that doesn't end in death. in modern usage, refers to a play that is humorous.

tragedy

in the greek sense, a play that ends with the death of at least one of the main characters. in modern usage, refers to a play that doesn't have a happy ending.

this map shows the geographic distribution of different tidal cycles along some earth's coastlines. areas experiencing tides are marked in yellow and experience one low tide and one high tide each day.