Apsychologist is interested in whether working memory is influenced by sleep loss. the psychologist administers a measure of working memory to a group of subjects at 8

a. m. on day one of the study and then again at 8

a. m. on day two of the study, after keeping the subjects awake the entire night. does sleep loss affect working memory? what statistical analysis we should be performed to answer this question?

Dependent-sample t test.

Explanation:

The dependent sample t-test is used when the observations or cases in one sample are linked with the cases in the other sample. That psychologist' group of subjects would work as a link in the measure of working memory influenced by sleep loss and the nature of humans.

economic

the aksumite empire was an ancient kingdom located in what is now northern ethiopia from the period of 100 ad to 940 ad. its capital was the city of aksum. the kingdom established itself as one of the 4 great powers at its time, along with persia, rome, and china.

the kingdom was rich in goods like gold, iron, and salt. it established strong commercial ties with the regions governed by rome, egypt, and persia (arabia). aksum was a key location in this commercial network. trade was also facilitated with the introduction of the aksumite currency.