Answer: a. 2.8
Explanation:
Given : Population mean : 
Sample size : n= 49> 30 , the sample is a large sample we use z-test.
Sample mean = 
Standard deviation : 
The test statistic for population mean is given by :-

Hence, the value of the test statistic is 2.8
Answer:
Option (b) is correct.
Explanation:
Before 1966, Catholics were restricted from consuming meat on Fridays and they ate fish on Fridays. But after 1966, there were no such restrictions are there and they are free to eat meat on Fridays, now Catholics also consume meat on Fridays.
This will result in an increase in the demand for meat and demand for fish decreases. So, this will shift the demand curve of fish leftwards and demand curve of meat rightwards.
Answer:
Life Review
Explanation:
Barney is engaged in life review process where one person return progressively to his or her consciousness of the conflicts and memories of the past which were never resolved properly, the main purpose is to re-evaluate them and to find some kind of resolutions. This is one of the most common phenomenon in which older people are engaged in their post age life where they re-call and remember their early life memories, mistakes, regrets, and unfinished tasks.
Answer:
Proactive consumers
Explanation:
Proactive means acting in advance to deal with an unexpected change or difficulty in the future.
Proactive consumers refers a group of consumers who are an intrinsic part of the creative process of developing a product. They are the active consumers. They are not a part of the passive consumers where industry dumps consumer goods.
Proactive consumers are part of the production and marketing process of a product. They make research on how a product can be improved on.
Proactive consumers reject most traditional advertising and use multiple sources—traditional media, the Internet, product-rating magazines, recommendations from friends in-the-know—to not only research a product, but to negotiate price and other benefits.
Answer:
Marnie will save = $ 125 from her raise .
Explanation:
raise income = $500
MPC = = 0.75
Marnie consumer 0.75 of every dollar increase . So total consumption increase = 500 * 0.75 = 375 $
Marnie will save = 500 - 375 = $ 125 from her raise .