exam
Maths Puzzle
Numerical Ability
3x^2+10x+8=-17x-2
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exam Other Question
A coin was flipped 60 times and came up heads 38 times. (a) At the .10 level of significance, is the coin biased towards heads? Show your decision rule and calculations. (b) Calculate a p-value and interpret it?
A disc jockey must play 18 commercial spots during 1 hour of a radio show. Each commercial is either 30 seconds or 60 seconds long. If the total commercial time during 1 hour is 15