A = pi r^2
a = 3.14 * 97^2
a = 29,544.26 mm^2
The slope intercept IS y=2/5x+7
Answer:
320+40=360
Step-by-step explanation:
8(40+5)
320+40=360
Answer:
16
Step-by-step explanation:
count the dots. each is one observation
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
=>
=>