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problem. 20. The null hypothesis is that B
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one minus B two is equal to zero, and
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the alternative hypothesis is is that the one minus B
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two is bigger than zero, where be one proportion
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is X one over N ones for 30/50 she's open
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six and B two, which is equal to extra
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over in two, which is 22/50 which is Oh
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, point or four. The pooled proportion, which
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is X one plus x 2 30 plus 22 over
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in one plus in two she is 100. She's
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equal toe 1000.52 toe. Find the value off until
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the statistics, which is equal to the P one
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minus B two over a square root off 4.5 to
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1 minus 4.5 52 square root off one over n
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. One plus one over and to which is equal
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to 1.6 eso. The probability is equal to the
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probability that that or the P value is equal,
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that the probability that that is bigger than 1.6,
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which is equal to the probability that set is smaller
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than negative 1.6, which is equal to open toe
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five, 48 and the P value is bigger than
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open toe five. So we say it to reject
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the null hypothesis is so there is no sufficient evidence
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to support support the claim.