In planning a study on the number of days in the last 30 that high school students texted while driving sometime during the day, a researcher states the hypotheses as H 0 : ¯ x = 15 days H a : ¯ x > 15 days What’s wrong with this? Hypotheses are statements about statistics, not parameters. The research question should not be about the population mean μ but should be about the sample mean ¯ x ˉ . Hypotheses are statements about parameters, not statistics. The research question should not be about the sample mean ¯ x , but should be about the population mean, μ . The null and alternative hypotheses need to be switched. There is nothing wrong with this statement.

"it's not the heat, it's the humidity".   that's a partly valid phrase you may have heard in the summer, but it's actually both.   the heat index, also known as the apparent temperature, is what the temperature feels like to the human body when relative humidity is combined with the air temperature.   this has important considerations for the human body's comfort.   when the body gets too hot, it begins to perspire or sweat to cool itself off.   if the perspiration is not able to evaporate, the body cannot regulate its temperature.   evaporation is a cooling process.   when perspiration is evaporated off the body, it effectively reduces the body's temperature.   when the atmospheric moisture content (i.e. relative humidity) is high, the rate of perspiration from the body decreases.   in other words, the human body feels warmer in humid conditions.   the opposite is true when the relative humidity decreases because the rate of perspiration increases.   the body actually feels cooler in arid conditions.   there is direct relationship between the air temperature and relative humidity and the heat index, meaning as the air temperature and relative humidity increase (decrease), the heat index increases (decreases).

step-by-step explanation:

55 degrees because 55+55=110 degrees

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if the angular bisector of an triangle bisects the opposite side, prove that the other two sides are equal.