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kirill [66]
3 years ago
12

You are conducting a study to see if the proportion of voters who prefer Candidate A is significantly more than 47%. With Ha : p

> 47% you obtain a test statistic of z = 1.997. Find the p-value accurate to 4 decimal places.
Mathematics
1 answer:
rodikova [14]3 years ago
3 0

Answer:

The p-value is 0.0229

Step-by-step explanation:

With H_{a}: p > 0.47 we have an upper-tail alternative. Because the p-value is defined as the probability of getting a value at least as extreme as the value observed. The observed value is given by the test statistic z = 1.997 which comes from a standard normal distribution. Therefore, we compute the p-value in the following way P(Z > 1.997) = 0.0229, i.e., the p-value is 0.0229

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