Question

In: Statistics and Probability

1. H0:μ=45.7 H0:μ=45.7 H1:μ<45.7 H1:μ<45.7 Your sample consists of 389 subjects, with a mean of 44...

1. H0:μ=45.7 H0:μ=45.7
H1:μ<45.7 H1:μ<45.7

Your sample consists of 389 subjects, with a mean of 44 and standard deviation of 3.96.

Calculate the test statistic, rounded to 2 decimal places.

z=

2.

You are conducting a study to see if the probability of a true negative on a test for a certain cancer is significantly different from 77%. With H1 : p ≠≠ 77% you obtain a test statistic of z=−1.301z=-1.301. Find the p-value accurate to 4 decimal places.

p-value =

3. The test statistic for a one tailed hypothesis test on a sample of 11 is 1.861. Find an interval for which the p-value lies.

Solutions

Expert Solution

We are allowed to do only 1 question at a time. Post again for other answers.

1)

z = -8.47

orchestra answered 2 years ago
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