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Mathematics, 06.12.2021 03:40 fooligan3448

A random sample of 148 recent donations at a certain blood bank reveals that 81 were type A blood. Does this suggest that the actual percentage of type A donations differs from 40%, the percentage of the population having type A blood? Carry out a test of the appropriate hypotheses using a significance level of 0.01. State the appropriate null and alternative hypotheses.

H0: p = 0.40

Ha: p ≠ 0.40

Calculate the test statistic and determine the P-value. (Round your test statistic(z-value) to two decimal places and your P-value to four decimal places.)

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