Answer:
84.375%
Step-by-step explanation:
Total no. of computation problem=32-5=27
Total no. problems in the assignment=32
=) per%= 27/32×100%=84.375%
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Answer:
z-test.
Step-by-step explanation:
We want to perform an hypothesis test for a population mean.
In the case that the <u>standard deviation of the population is known</u> and the population distribution is normal, even if the sample is small, <u>we will use a z-test</u>.
The usual case is to not know the standard deviation of the population, in which case a t-test is adequate instead of a z-test, taking into account the degrees of freedom of the sample.
Answer:
-4/11
Step-by-step explanation:
The easiest way to find the answer to this is by a calculator.
Answer:
z=7
Step-by-step explanation:
Combine like terms: 2z=14
Reduce the greatest common factor on both sides of the equation z=7
answer: z= 7