subject
Mathematics, 18.09.2019 16:30 cs101200

About 30% of the population cannot detect any odor when they sniff the steroid androstenone, but they can become sensitive to its smell if exposed to the chemical repeatedly. does this change in sensitivity happen in the nose or the brain? mainland et al. (2002) exposed one nostril of each of 12 non-detector participants to androstenone for short periods every day for 21 days. the other nostril was plugged and had humidified air flow to prevent androstenone from entering. after the 21 days, the researchers found that 10 of 12 participants had improved androstenone-detection accuracy. this suggested that increases in the plugged nostril, whereas two had reduced accuracy. this suggested that increases in sensitivity to androstenone happened in the brain rather than in the nostril, since the epithelia of the nostrils are not connected. the authors conducted a statistical hypothesis test of whether accuracy in fact did change. let p refer to the proportion of non-detectors in the population whose accuracy scores improve after 21 days. under the null hypothesis, p = 0.5 (as many participants should improve as deteriorate in their accuracy after 21 days). the alternative hypothesis is that p is not equal to 0.5. what is the probability of obtaining a value of 10 or greater? express with four significant figures, and include the leading zero.

ansver
Answers: 3

Another question on Mathematics

question
Mathematics, 22.06.2019 02:00
Alistair has 5 half-pounds chocalate bars. it takes 1 1/2 pounds of chocalate,broken into chunks, to make a batch of cookies. how many batches can alistair mke with chocalate he has on his hand?
Answers: 1
question
Mathematics, 22.06.2019 02:00
Einstein office equipment has a rental plan for office machines. a fax machine that lists for $722.98 can be rented for 22% of the price annually. the state imposes a usage charge of 3.2%. if stephen hawking travel decides to rent the fax machine, what will its total monthly rental charge be?
Answers: 2
question
Mathematics, 22.06.2019 02:30
Ken earned $128 from his part-time job this summer. he spent 25% of his money on games. he is going to donate 1/6 of the remaining money to charity. how much money will the charity receive?
Answers: 1
question
Mathematics, 22.06.2019 03:00
Determine if the sequence is arithmetic or geometric.  then identify the next term in the sequence.    0.2, 1, 5, 25, . . group of answer choices arithmetic; 75 geometric; 75 arithmetic; 125 geometric; 125
Answers: 1
You know the right answer?
About 30% of the population cannot detect any odor when they sniff the steroid androstenone, but the...
Questions
question
Business, 30.06.2019 05:50
question
Mathematics, 30.06.2019 06:00
question
English, 30.06.2019 06:00
Questions on the website: 13722360