Reference no: EM1321426

Q1) If null hypothesis is not rejected when it muts be, what have you committed?

a) Z test error

b) T test error

c) Type I error

d) Type II error

Q2) When p-value is less than significance level (α) what must you do?

a) Reject null hypothesis.

b) Fail to reject null hypothesis.

c) Reject both null and alternative hypotheses.

d) Fail to reject both null and alternative hypotheses.

Q3) True or false? Power of test is probability that test will reject false null hypothesis

a) True

b) False

Q4) Quality control department of tire manufacturer wishes to find out if there is evidence that more than 1% of tires coming off a particular assembly line are defective. They must test following hypotheses:

a) H0: π≥ 0.01, H1: π < 0.01

b) H0: μ < 0.01, H1: μ ≥ 0.01

c) H0: π ≤ 0.01, H1: π > 0.01

d) H0: μ ≥ 0.01, H1: μ < 0.01

If absolute value of test statistic is less than critical value in hypothesis test decision is to:

a) Reject the null hypothesis.

b) Accept the null hypothesis.

c) Fail to reject the null hypothesis.

d) Reject the alternative hypothesis