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Lostsunrise [7]
3 years ago
5

g Suppose you wish to perform a hypothesis test for a population mean. Suppose that the population standard deviation is known,

the population distribution is Normal, and the sample is small. Would you perform a z-test or t-test?
Mathematics
1 answer:
NikAS [45]3 years ago
5 0

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.

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Answer:

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General Formulas and Concepts:

<u>Pre-Algebra</u>

Order of Operations: BPEMDAS

  1. Brackets
  2. Parenthesis
  3. Exponents
  4. Multiplication
  5. Division
  6. Addition
  7. Subtraction
  • Left to Right

Equality Properties

Step-by-step explanation:

<u>Step 1: Define Equation</u>

m - 4m = -6

<u>Step 2: Solve for </u><em><u>m</u></em>

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<u>Step 3: Check</u>

<em>Plug in m into the original equation to verify it's a solution.</em>

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  2. Multiply:                                 2 - 8 = -6
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