Chapter 9: Q. 9.12 (page 515)
Assume the -value is . What type of test is this? Draw the picture of the -value.
Short Answer
The indispensable thesis shows that the test is right- tagged.
Chapter 9: Q. 9.12 (page 515)
Assume the -value is . What type of test is this? Draw the picture of the -value.
The indispensable thesis shows that the test is right- tagged.
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Get started for freeIf the alternative hypothesis has a not equals ( ≠ ) symbol, you know to use which type of test?
It is believed that Lake Tahoe Community College (LTCC) Intermediate Algebra students get less than seven hours of sleep per night, on average. A survey of LTCC Intermediate Algebra students generated a mean of hours with a standard deviation of hours. At a level of significance of , do LTCC Intermediate Algebra students get less than
seven hours of sleep per night, on average? The distribution to be used for this test is ________________
a. , )
b.
c.
d.
Draw the graph of a two-tailed test.
The mean throwing distance of a football for Marco, a high school freshman quarterback, is yards, with a standard deviation of two yards. The team coach tells Marco to adjust his grip to get more distance. The coach records the distances for throws. For the throws, Marco’s mean distance was yards. The coach thought the different grip helped Marco throw farther than yards. Conduct a hypothesis test using a preset . Assume the throw distances for footballs are normal.
First, determine what type of test this is, set up the hypothesis test, find the-value, sketch the graph, and state your conclusion.
Assume the null hypothesis states that the mean is at least . Is this a left-tailed, right-tailed, or two-tailed test?
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