An e-commerce research company claims that 60% of graduate students have bought merchandise online. A consumer group is suspicious of the claim and thinks the claim is not accurate. A random sample of 80 graduate students shows that 54 students have purchased merchandise online. Is there sufficient evidence to substantiate the claim? Conduct a test at 10% type 1 error rate. a. What type of test should we use? ___ sample ____ - test for the ____ b. Write the hypothesis and specify the type of test (failing). Use the appropriate notation for the hypothesis. hypothesis: tailing: c. State the decision of the test test stat: critical value: d. Express your conclusion concisely using statistically appropriate language applied to the online purchases
An e-commerce research company claims that 60% of graduate students have bought merchandise online. A consumer group is suspicious of the claim and thinks the claim is not accurate. A random sample of 80 graduate students shows that 54 students have purchased merchandise online. Is there sufficient evidence to substantiate the claim? Conduct a test at 10% type 1 error rate.
a. What type of test should we use?
___ sample ____ - test for the ____
b. Write the hypothesis and specify the type of test (failing). Use the appropriate notation for the hypothesis.
hypothesis:
tailing:
c. State the decision of the test
test stat:
critical value:
d. Express your conclusion concisely using statistically appropriate language applied to the online purchases
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