Mathematics, 14.04.2020 22:16 keepcalmands2930
(1 point) A noted psychic was tested for ESP. The psychic was presented with 180 cards face down and was asked to determine if the card was one of 5 symbols: a star, cross, circle, square, or three wavy lines. The psychic was correct in 43 cases. Let pp represent the probability that the psychic correctly identifies the symbol on the card in a random trial. Assume the 180 trials can be treated as an SRS from the population of all guesses. To see if there is evidence that the psychic is doing better than just guessing, we test H0:p=.2H0:p=.2 Ha:p>.2Ha:p>.2 (a) What is the zz-statistic for this test? (b) What is the P-value of the test?
Answers: 2
Mathematics, 21.06.2019 15:50
Which of the following represents a number squared is equal to twenty more than nine times that number ? a) x squared = 9x + 20 b) x squared = 20x + 9 c) x squared > 9 + 20x d) x squared = 9 + x + 20
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Mathematics, 21.06.2019 17:40
Given f(x)= 9x+1 and g(x)=x^3, choose the expression (f*g)(x)
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Mathematics, 21.06.2019 19:30
Solve the equation for x.3(6x - 1) = 12 i've tried doing the math and i can't find out what i'm doing wrong
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Mathematics, 21.06.2019 23:40
Typically a point in a three dimensional cartesian coordinate system is represented by which of the following answers in the picture !
Answers: 1
(1 point) A noted psychic was tested for ESP. The psychic was presented with 180 cards face down and...
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