Mathematics, 02.11.2020 16:40 kayla8243

In an experiment, students were given words to memorize, then were randomly assigned to either take a 90 minute nap or take a caffeine pill. A couple hours later, they were tested on their recall ability. We wish to test to see if the sample provides evidence that there is a difference in mean number of words people can recall depending on whether they take a nap or have some caffeine. What are the null and alternative hypotheses for this test?

Answers: 3

Show answers

Other questions on the subject: Mathematics

Mathematics, 21.06.2019 19:20, girlydiy17

Thompson and thompson is a steel bolts manufacturing company. their current steel bolts have a mean diameter of 127 millimeters, and a variance of 36. if a random sample of 35 steel bolts is selected, what is the probability that the sample mean would differ from the population mean by greater than 0.5 millimeters? round your answer to four decimal places.

Answers: 3

continue

Mathematics, 21.06.2019 19:30, noahdeem135

Asurvey of 2,000 doctors showed that an average of 3 out of 5 doctors use brand x aspirin. how many doctors use brand x aspirin

Answers: 1

continue

Mathematics, 21.06.2019 20:00, heavenwagner

Marcus and cody both leave the park at the same time, but in opposite directions. if cody travels 6 mph faster than marcus and after 4 hours they are 64 miles apart, how fast is each traveling? solve using rare times time = distance.

Answers: 1

continue

Mathematics, 22.06.2019 00:00, nyctvinny8290

Two poles, ab and ed, are fixed to the ground with the of ropes ac and ec, as shown: what is the approximate distance, in feet, between the two poles? 6.93 feet 8.66 feet 12.32 feet 15.59 feet

Answers: 1

continue

You know the right answer?

In an experiment, students were given words to memorize, then were randomly assigned to either take...