1. For each hypothesis test you complete, please answer questions (a) through (i) listed below. (a) What conditions should you check first before you conduct the hypothesis test? (b) Write the null and alternative hypotheses. (c)What type of test are you doing: right-tailed, left-tailed or two-tailed? (d)What formula should be used for the test statistic? (e)What number is the test statistic equal to? (f) Sketch a graph of the p-value (g) What p-value do you obtain? Round to the ten-thousandths. (h) Do you reject the null hypothesis or fail to reject the null hypothesis? Explain. (i) Please write a conclusion sentence, in the context of the problem, that explains to a lay person the result of the hypothesis test. 2. It has been found that 85.6% of all enrolled college and university students in the United States are undergraduates. A random sample of 500 enrolled college students in a particular state revealed that 420 of them were undergraduates. Is there sufficient evidence to conclude that the proportion differs from the national percentage? Use α= 0.05.
1. For each hypothesis test you complete, please answer questions (a) through (i) listed
below.
(a) What conditions should you check first before you conduct the hypothesis test?
(b) Write the null and alternative hypotheses.
(c)What type of test are you doing: right-tailed, left-tailed or two-tailed?
(d)What formula should be used for the test statistic?
(e)What number is the test statistic equal to?
(f) Sketch a graph of the p-value
(g) What p-value do you obtain? Round to the ten-thousandths.
(h) Do you reject the null hypothesis or fail to reject the null hypothesis?
Explain.
(i) Please write a conclusion sentence, in the context of the problem, that
explains to a lay person the result of the hypothesis test.
2. It has been found that 85.6% of all enrolled college and university students in the United States are undergraduates. A random sample of 500 enrolled college students in a particular state revealed that 420 of them were undergraduates. Is there sufficient evidence to conclude that the proportion differs from the national percentage? Use α= 0.05.
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