Question

In a random sample of 949 adults in a certain country, 19.2% of the sample members indicated some measure of disagreement with the statement "Globalization is more than an economic trade system—instead it includes institutions and culture." a. Test at the 1% level the null hypothesis that at least 25% of all the country's adults would disagree with this statement. b. Find the probability of rejecting the null hypothesis with a 1%-level test if, in fact, 22% of all the country's adults would disagree with the statement. Click the icon to view the standard normal distribution table. For this test at the significance level ? with sample proportion ?, hypothesized proportion P?, sample size n, and z? or z?/2, what is the form of the decision rule? A. Reject H? if (? - P?) / ?(P?(1 - P?) / n) < -z?/2 or reject H? if (? - P?) / ?(P?(1 - P?) / n) > z?/2 B. Reject H? if (? - P?) / ?(P?(1 - P?) / n) > z? C. Reject H? if (? - P?) / ?(P?(1 - P?) / n) < -z? Determine the value for -z?, z?, or ±z?/2 as appropriate for this test. -2.33 (Round to two decimal places as needed. Use a comma to separate answers as needed.) Calculate the test statistic. (? - P?) / ?(P?(1 - P?) / n) = -4.13 (Round to two decimal places as needed.) State the conclusion of this test. Reject H?. There is sufficient evidence to conclude that less than 25% of all the country's adults would disagree with this statement. b. The probability of rejecting the null hypothesis is [ ] when, in fact, 22% of all the country's adults would disagree with the statement. (Round to four decimal places as needed.)

          In a random sample of 949 adults in a certain country, 19.2% of the sample members indicated some measure of disagreement with the statement "Globalization is more than an economic trade system—instead it includes institutions and culture."
a. Test at the 1% level the null hypothesis that at least 25% of all the country's adults would disagree with this statement.
b. Find the probability of rejecting the null hypothesis with a 1%-level test if, in fact, 22% of all the country's adults would disagree with the statement.
Click the icon to view the standard normal distribution table.

For this test at the significance level ? with sample proportion ?, hypothesized proportion P?, sample size n, and z? or z?/2, what is the form of the decision rule?

A. Reject H? if (? - P?) / ?(P?(1 - P?) / n) < -z?/2 or reject H? if (? - P?) / ?(P?(1 - P?) / n) > z?/2
B. Reject H? if (? - P?) / ?(P?(1 - P?) / n) > z?
C. Reject H? if (? - P?) / ?(P?(1 - P?) / n) < -z?

Determine the value for -z?, z?, or ±z?/2 as appropriate for this test.
-2.33 (Round to two decimal places as needed. Use a comma to separate answers as needed.)

Calculate the test statistic.
(? - P?) / ?(P?(1 - P?) / n) = -4.13 (Round to two decimal places as needed.)

State the conclusion of this test.
Reject H?. There is sufficient evidence to conclude that less than 25% of all the country's adults would disagree with this statement.

b. The probability of rejecting the null hypothesis is [ ] when, in fact, 22% of all the country's adults would disagree with the statement.
(Round to four decimal places as needed.)

In a random sample of 949 adults in a certain country, 19.2% of the sample members indicated some measure of disagreement with the statement "Globalization is more than an economic trade system—instead it includes institutions and culture."
a. Test at the 1% level the null hypothesis that at least 25% of all the country's adults would disagree with this statement.
b. Find the probability of rejecting the null hypothesis with a 1%-level test if, in fact, 22% of all the country's adults would disagree with the statement.
Click the icon to view the standard normal distribution table.

For this test at the significance level ? with sample proportion ?, hypothesized proportion P?, sample size n, and z? or z?/2, what is the form of the decision rule?

A. Reject H? if (? - P?) / ?(P?(1 - P?) / n) < -z?/2 or reject H? if (? - P?) / ?(P?(1 - P?) / n) > z?/2
B. Reject H? if (? - P?) / ?(P?(1 - P?) / n) > z?
C. Reject H? if (? - P?) / ?(P?(1 - P?) / n) < -z?

Determine the value for -z?, z?, or ±z?/2 as appropriate for this test.
-2.33 (Round to two decimal places as needed. Use a comma to separate answers as needed.)

Calculate the test statistic.
(? - P?) / ?(P?(1 - P?) / n) = -4.13 (Round to two decimal places as needed.)

State the conclusion of this test.
Reject H?. There is sufficient evidence to conclude that less than 25% of all the country's adults would disagree with this statement.

b. The probability of rejecting the null hypothesis is [ ] when, in fact, 22% of all the country's adults would disagree with the statement.
(Round to four decimal places as needed.)

Added by James P.

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