You are testing the Hypothesis Ho: P= 0.31 vs H1: P # 0.31. The test statistics happens to be -1.69. The P-value for this should be

O -0.0455 O 0.091 O 0.0455 O Not enough info is provided

If the cost of a Type I error is high, a smaller value should be chosen for the

O level of significance O critical value O test statistic O confidence coefficient

For a two-tailed test for the mean with a sample size of 40, the null hypothesis will not be rejected at a 5% level of significance if the test statistic is

O between -1.7 and 1.7 O None of the choices here is correct. O greater than 1.96 O less than 1.645