A cognitive psychologist conducts a study to examine differences in cognitive functioning across stages of adulthood. He opts to study one group of young adults ages 21-28. one group of middle-aged adults aged 41-48, and one group of older adults ages 61-
68- The psychologist finding that that the middle age group outperforms the older group is a valid criticism to the study's conclusion
Explanation:
A cognitive psychologist concludes that age relates to cognitive performance on these tasks.This statement means that as a person age's its ability to perform the cognitive task declines .In the study conducted between the various age group the cognitive psychologist where able to find that the people in their middle age (i.e. between 41-48) were able to perform the cognitive task is a better way than the people in the older group. and the younger group was able to perform the cognitive task much better than the middle and the old age group.
Now their is no need for the comparison of the middle age and the old age people for performing the task because as er the conclusion the cognitive skills decline with the age.
So,the psychologist finding that that the middle age group outperforms the older group is a valid criticism to the study's conclusion
Answer:
<u>The proportion of women who ran the marathon and had a finishing time less than Kathy's is 66% (rounding to the next whole)</u>
Explanation:
1. Let's review the information given to us to answer the question properly:
μ of finishing time for women = 259 minutes
σ of finishing time for women = 32 minutes
Finishing time for Kathy = 272 minutes
2. What proportion of women who ran the marathon had a finishing time less than Kathy's? Show your work.
Let's calculate the z-score for the finishing time for Kathy, as follows:
z-score = (272 - 259)/32
z-score = 13/32 = 0.41 (rounding to the next hundredth)
Using the z-table, now we can calculate the proportion of women who ran the marathon had a finishing time less than Kathy's:
p (z=0.41) = 0.6591
<u>The proportion of women who ran the marathon and had a finishing time less than Kathy's is 66% (rounding to the next whole)</u>
A. In a business cycle there are ups and downs. When there is a peak or a high business is booming and employment is high, unemployment is down and inflation is high.
B. We have to bear in mind that there are four kinds of unemployment: structural, frictional, cyclical and seasonal. Structural unemployment is caused by the type of production and rules of an economy that govern whose abilities are valued in the market so it is not so realated to the business cycle. frictional unemployment is linked with changing jobs ( workers are moving or searching for better opportunities) so this is not so related to the business cycle. Cyclical unemployment is related to the change in the GDP (Gross Domestic Product) so<u> it is related to the business cycle</u>, Seasonal employment is associated with changes in the season so it is no so related to the business cycle.
