ONE SAMPLE t Test (Show all work) Assume that on average, healthy young adults dream 94 minutes each night, as inferred from a number of measures, including rapid eye movement (REM) sleep. An investigator wishes to determine whether drinking coffee just before going to sleep affects the amount of dream time. After drinking a standard amount of coffee, dream time is monitored for each of 49 healthy young adults in a random sample. Results show a sample mean (X-bar), of 90 minutes and a sample standard deviation, s, of 7 minutes. Test the Null Hypothesis with t, using the .01 level of significance and construct a 99 percent confidence interval (whether you reject OR retain the null hypothesis)
- ONE SAMPLE t Test (Show all work)
ONE SAMPLE t Test (Show all work)
Assume that on average, healthy young adults dream 94 minutes each night, as inferred from a number of measures, including rapid eye movement (REM) sleep. An investigator wishes to determine whether drinking coffee just before going to sleep affects the amount of dream time. After drinking a standard amount of coffee, dream time is monitored for each of 49 healthy young adults in a random sample. Results show a sample mean (X-bar), of 90 minutes and a sample standard deviation, s, of 7 minutes. Test the Null Hypothesis with t, using the .01 level of significance and construct a 99 percent confidence interval (whether you reject OR retain the null hypothesis)
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