What is the circumference of a circle with a radius of 4.4 centimeters? Enter your answer as a decimal in the box. Use 3.14 for
2 answers:
Answer:
Hence, the circumference of the circle is:
27.6 cm
Step-by-step explanation:;
We are given Radius (r) of a circle as:
r=4.4 centimeters.
We are asked to find the circumference(C) of this circle.
We know that a circumference of a circle is defined as:
We put the value of r in the formula to obtain the circumference.
Hence, the circumference of the circle to the nearest tenth is:
27.6 cm.
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Answer: Reject the eight- ounces claim.
Step-by-step explanation:
For left tailed test , On a normal curve the rejection area lies on the left side of the critical value.
It means that if the observed z-value is less than the critical value then it will fall into the rejection region other wise not.
As per given ,
Objective : A coffee-dispensing machine is supposed to deliver eight ounces of liquid or less.
Then ,
, since alternative hypothesis is left-tailed thus the test is an left-tailed test.
the critical value for z for a one-tailed test with the tail in the left end is -1.645 and the obtained value is -1.87.
Clearly , -1.87 < -1.645
⇒ -1.87 falls under rejection region.
⇒ Decision : Reject null hypothesis.
i.e. we reject the eight- ounces claim.