P=$24038.60 has to be invested to have $45000 after 19 years
Answer:
I do not understand very well but they are already helping me
(28 : 100) *6 = 1.68 (tax)
28 + 1.68 = 29.68 (total cost)
Answer:
(25.732,30.868)
Step-by-step explanation:
Given that in a random sample of 42 people, the mean body mass index (BMI) was 28.3 and the standard deviation was 6.09.
Since only sample std deviation is known we can use only t distribution
Std error = 

t critical for 99% two tailed 
Margin of error
Confidence interval lower bound = 
Upper bound = 