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asambeis [7]
3 years ago
14

ALlcan you help me please guys ​

Mathematics
1 answer:
ANEK [815]3 years ago
6 0

Answer:

hope this will help you

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Answer:

z(critic) = -2.33

Step-by-step explanation:

In this case this is a population proportion test because the observations are simple random sampled and there is a fixed number of trials with only two possible options. Also, n is big enough.

Since this is a population test, the test statistic is z.

Also, this is a one tailed tast because the claim is that the population proportion is less than 0.57.

In this case, for a 0.01 significance level, z(critic) = -2.33

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