1. A company that created a basic knowledge exam claims that more than 70% of adults should pass the test. In a recent study, 584 out of 875 people were able to pass the test. Find a test statistic for the proposition. O. z=-2.10 O. z=2.10 O. z=-1.72 O. z=1.72 I believe the answer is O. z=2.10 but I need a second opinion. 2. Clinical trials involved treating flu symptoms with a new medicine. Among 724 patients treated with the medicine, 72 experienced a side effect of nausea. The claim is that the rate of nausea is greater than the 6% rate experienced by flu patients given a placebo. Find a test statistic of the proportion. O. z=-1.41 O. z=4.47 O. z= 4.53 O. z= 1.41 I believe the answer is O. z= 1.41 but I need a second opinion. 3.When posed with the question "Do you believe the Loch Ness monster exists," out of 21,346 responses, 64% were "yes." Using a 0.01 significance level to test a claim that most people believe in the Loch Ness monster, a P-value of 0.0001 is found. State the initial conclusion and final conclusion of the claim. O. Reject the null hypothesis; there is sufficient evidence to support the claim that most people believe in the Loch Ness monster. O. Reject the null hypothesis; there is not sufficient evidence to support the claim that most people believe in the Loch Ness monster. O. Fail to reject the null hypothesis; there is sufficient evidence to support the claim that most people believe in the Loch Ness monster. O. Fail to reject the null hypothesis; there is not sufficient evidence to support the claim that most people believe in the Loch Ness monster. I believe the answer is O. Fail to reject the null hypothesis; there is not sufficient evidence to support the claim that most people believe in the Loch Ness monster but I need a second opinion. 4. In a survey of randomly selected workers, 61% got their jobs through networking. Use the sample data with a 0.05 significance level to test the claim that most (more than 50%) workers get their jobs through networking. Given a P-value of 0.0026, state the initial and final conclusion on the claim. O. Reject the null hypothesis; there is not sufficient evidence to support the claim that most workers get their jobs through networking. O. Fail to reject the null hypothesis; there is sufficient evidence to support the claim that most workers get their jobs through networking. O. Fail to reject the null hypothesis; there is not sufficient evidence to support the claim that most workers get their jobs through networking. O. Reject the null hypothesis; there is sufficient evidence to support the claim that most workers get their jobs through networking. I believe the answer is O. Reject the null hypothesis; there is not sufficient evidence to support the claim that most workers get their jobs through networking but I need a second opinion. 5. In a recent taste test, 1017 out of 1250 people could not tell the difference between a popular soda's original flavor and the new calorie-free flavor. The company claims that more than 80% people cannot tell the difference. Find a test statistic for the proportion. O. z= 0.39 O. z=2.21 O. z=1.38 O. z= 1.20 I believe the answer is O. z=2.21 but I need a second opinion