Answer:
68
Step-by-step explanation:
Answer:
1+1
Step-by-step explanation:
Everyday about 200 people visited the store Because you would divide 2744 by 14 and get 196 and round that to 200
Complete Question
Answer:
a

b
Step-by-step explanation:
From the question we are told that
The sample size is n = 60
The first sample mean is 
The second sample mean is 
The first variance is 
The first variance is 
Given that the confidence level is 95% then the level of significance is 5% = 0.05
Generally from the normal distribution table the critical value of
is
Generally the first standard deviation is

=> 
=> 
Generally the second standard deviation is

=> 
=>
Generally the first standard error is



Generally the second standard error is



Generally the standard error of the difference between their mean scores is mathematically represented as

=> 
=> 
Generally 95% confidence interval is mathematically represented as
=>
=>
Subtracting a value from the input x shifts the graph that number of units to the right.
The answer would be C.