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FromTheMoon [43]
3 years ago
8

In a survey regarding job satisfaction, 574 in a sample of 934 female job-holders stated that they are satisfied with their jobs

, while 500 in a sample of 755 male job-holders stated that they are satisfied with their jobs. the null hypothesis is that the proportions of all female and male job-holders who are satisfied with their jobs are the same. the alternative hypothesis is that the proportion of female job-holders who are satisfied with their jobs is lower than the proportion of male job-holders stated who are satisfied with their jobs. the significance level is 2.5%. ​ what is the critical value of z for the hypothesis test?
Business
1 answer:
pychu [463]3 years ago
8 0
If the critical value is the only thing of interest, then this question is quite easy. Referencing a z table, you look up the percentage of interest: in this case, we must be 97.5% certain in order to accept the null hypothesis (significance level =2.5%. The number that corresponds to .9750 on the z table is 1.96. This is our critical value.
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Answer:

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For example, let's say US can produce 20 Television (TV) sets and 50 Air Conditioners in a month. Here, the opportunity cost of producing 1 TV set is 50/20 i.e. 2.5 Air Conditioners. Similarly, the opportunity cost of producing 1 Air Conditioner (AC) is 20/50 i.e. 0.4 TV set. Hence, US should produce Air Conditioners over TV sets as per <em>Comparative Advantage</em> concept.

Take another example, let's say UK can produce 50 Television (TV) sets and 20 Air Conditioners in a month. Hence, the opportunity cost of producing 1 TV set is 20/50 i.e. 0.4 Air Conditioner. On the other hand, the opportunity cost of producing 1 AC is 50/20 i.e. 2.5 TV sets. Thus, UK should produce TV sets over AC's as per <em>Comparative Advantage </em>model.

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<em> In this way nations can gain from specialization and trade by making use of Comparative Advantage theory</em>.

It is to be noted that <em>Absolute Advantage model </em>of Adam Smith is also good as it highlights production of that good by a country, which it can produce in large quantities with fewer resources and minimal time than any other nation in the world. But the <em>Comparative Advantage Model </em>developed by David Ricardo considers opportunity cost and is much more refined than Absolute Advantage Model.

<em></em>

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