Answer:
 
      
Explanation:
Data given and notation      
 represent the sample mean
 represent the sample mean      
 represent the standard deviation for the sample
 represent the standard deviation for the sample      
 sample size
 sample size      
 represent the value that we want to test
 represent the value that we want to test    
 represent the significance level for the hypothesis test.
 represent the significance level for the hypothesis test.    
t would represent the statistic (variable of interest)      
 represent the p value for the test (variable of interest)
 represent the p value for the test (variable of interest)  
State the null and alternative hypotheses.      
We need to conduct a hypothesis in order to determine if the mean is lower than 5600, the system of hypothesis would be:      
Null hypothesis: 
      
Alternative hypothesis: 
      
We don't know the population deviation, so for this case is better apply a t test to compare the actual mean to the reference value, and the statistic is given by:      
 (1)
 (1)      
t-test: "Is used to compare group means. Is one of the most common tests and is used to determine if the mean is (higher, less or not equal) to an specified value".  
Calculate the statistic      
We can replace in formula (1) the info given like this:      
 
      
 
        
             
        
        
        
Non of the above all of the others take from you or make problems.
        
                    
             
        
        
        
Answer:
Limited natural resources such as infertile land and lack of coastal access can limit economic growth for a country.
Explanation:
Natural resources are a source of wealth for the country.  Mineral such oil and precious stones have made nations wealthy.
Land is a factor of production. Lack of fertile lands will make a nation dependent on imports for its food security.  Access to coastal areas facilitates cheaper and fast international trade. Landlocked countries use harbor of other nations for global business. Goods and services from landlocked counties may be more expensive as a result of high transport costs. 
 
        
                    
             
        
        
        
Answer:
E-mail
Explanation:
Text messages, instant messages, and social networking are all generally considered as informal methods of communication which are used to  communicate informal information, such as a the change in a meeting time if schedules have been adjusted during a factory tour.
Secondly such informal means of communication might not be ideal for use to a colleague in another office as the relationship would not be very personal but official.
Since Caroline needs information from a coworker in another office about an upcoming salespromotion, she is better off sending her request via e-mail
 
        
             
        
        
        
Answer:
I won`t lie, unions are useless. They got everything they need.
Explanation:
There used to working conditions for absolute terrible . Then unions took action, boom done. Now unions is all about money. The leaders get rich off of people who want better pay like 15 bucks to flip a burger. That is just well, sad to be payed 15 an hour to flip burgers at a fast food place meant  for high schoolers. See what I am saying?