2 Select all the correct answers.
Which statements are true about the functions y
sin(x), y = cos(x), and y
tan(x)?
Both y = sin(x) and y tan(x) are increasing on the interval (0, 2). and y cos(a) is
decreasing on that interval.
The amplitudes of y = sin(x). y cos(x) and y tan(t) are 1.
The graphs of y = sin(I) and y cos(x) do not have midlines.
The domains of y = sin(x), y cos(x), and y = tan(a) are all real numbers.
The periods of y = sin(x) and y cos(x) are 27. and the period of y = tan(s) is er
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The vice president of programming at nbc is finalizing the prime-time schedule for the fall. she has decided to include a hospital drama but is unsure which of two possibilities to select. she has a pilot called the surgeon and another called critical care. to her make a final decision, a sample of 20 viewers from throughout the united states was asked to watch the two pilots and indicate which show they prefer. the results were that 12 liked the surgeon, 7 liked critical care, and one had no preference. state the decision rule, using the 0.10 significance level. h0: π = 0.50 h1: π ≠ 0.50 1. reject h0 if number of + signs is either < = or > = 2. what is your decision regarding h0? is there a preference for one of the two shows?