Answer:
16/81
Step-by-step explanation:
=>
=> -16/-81
=> 16/81
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Jennifer uses a coupon for 20% off her order. is the total was 18$ how much money does she save
2 answers:
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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.
Use Pythagorean Theorem which states that in a right triangle:
, where a and b are the legs, and c is the hypotenuse.
Take the square root of both sides to solve for x.
The answer is 26.
Take the square root of both sides to solve for x.
The answer is 26.