Assuming part a is correct, how do you do b and c?

Mathematics

1 answer:

zubka84 [21]3 years ago

8 0

Step-by-step explanation:

B. Yes, we are 99% confident that the population mean is within the interval.

C. Yes, 225 is below the interval minimum, so it is reasonable to conclude the average cholesterol level is greater than 225 mg/dl.

D. No. Increasing the sample size would decrease the margin of error, so the ends of the interval would move closer to the sample mean of 251.9. So the interval minimum would still be higher than 225.

You might be interested in

Select the correct answer. Which expression represents the series ? 1+5+25+125+625? creating and solving formulas for geometric

Art [367]

Answer:

The given series can be written as

∑ (5)^i

i = 0

We know that the series is

1+5+25+125+625

This is equal to

(5)^0 + (5)^1 + (5)^2 + (5)^3 + (5)^4

Thus,

For i from 0 to 4,

We get the general representation.

3 0

3 years ago

Name a chord shown in this diagram.

Gre4nikov [31]

Answer:

R to S

Step-by-step explanation:

4 0

3 years ago

7/12 + 3/4 in simplest form?

Mariulka [41]

Well first we have to add 7/12 and 3/4 together which is 7/12+3/4=4/3. Now we have to reduce that to simplest form. Which would be 1 1/3 is 7/12+3/4 in simplest form!

4 0

4 years ago

Read 2 more answers

z 5 − z+2 2z+4 =−3 space, startfraction, 5, divided by, z, end fraction, minus, start fraction, 2, z, plus, 4, divided by, z

yan [13]

Answer:

The sum of all the possible values for z that satisfy the above equation is -5.

Step-by-step explanation:

The given equation is

$\frac{5}{z}-\frac{2z+4}{z+2}=-3$