Yesterday Howard made $7 an hour while working. He also got a $10 tip. Let h
1 answer:
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Answer: The initial amount in the account = $3600
Step-by-step explanation:
Since we have given that
The amount of money in a savings account after t years is represented by the function
As we know the formula "Compound Interest" :
So, According to our question,
Rate of interest = 0.35 = 35%
So, equate the both the equations , we get that
Hence, The initial amount in the account = $3600
Answer:
Step-by-step explanation:
Given that in a recent poll 1 of 1000 American adults, the number saying that exercise is an important part of daily life was 753.
Sample proportion =
To find 90% confidence interval we must find std error of proportion first
As per central limit theorem, sample proportion will follow a normal distribution with mean = 0.753
Std error of proportion=
90% Z critical value = 1.645
Margin of error = 1.645*0.01363 = 0.0224
Confidence interval lower bound = 0.753-0.0224=0.731
Upper bound = 0.775