In order to be 99 confident you have not committed a Type I error at what level

# In order to be 99 confident you have not committed a

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4. In order to be 99% confident you have not committed a Type I error, at what level should you set your p-value? A) .01 B) .05 C) .10 D) .15 Because the probability of making the wrong decision when the null hypothesis is true at the significance level of .01 – p-value less than alpha and t-value for the test must be to the right 5. In order to determine whether or not you will reject the null hypothesis, the test statistic must be compared against the____.

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Tabet Olivo EPSY 435-701 Look at the following scenarios and decide what kind of t-tests should be used. Please provide reasons for your answers: 6. Gary wants to know if there is a difference in the amount of fish caught when fishing from a boat or fishing from the shore within the same time period . What type of t-test should he use? a) T-test for dependent samples b) T-test for independent samples comparing the difference in the amount of fish caught (difference between groups) fishing from boat or the shore (variables) tested once (same time period). 7. A researcher conducts an experiment to see if specific eye exercises can improve peripheral vision. A random sample of 5 people were rated for peripheral vision on a scale from 1 to 20 where 9 is considered average and higher scores indicate better peripheral vision. Then they followed the prescribed eye exercise program and were tested again. What type of t-test should
• Fall '17
• SUZANNA RAMOS

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