Marta's Null Hypothesis H₀: "The mean birth weight in this nation is..." can be given as Null Hypothesis: H₀: µ = 3.5, that is, equal to 3.5 kg. Hence, option C is the right option.
Null and alternative hypotheses are used in hypotheses testing, to check statistical hypotheses testing, for relations between two populations of similar samples.
If the means of the first sample is μ₁ and the second sample is μ₂, then the
Null Hypothesis H₀: μ₁ = μ₂, and
Alternate Hypothesis H₁: μ₁ ≠ μ₂.
The following data is provided: mean birth weights of newborns, x=3.5.
Because the null hypothesis is "the mean birth weight of babies of European heritage is 3.5 kg." this is a two-tailed hypothesis test.
As a result, Marta should complete her null hypothesis statement with "equal to 3.5 kg."
The alternative hypothesis is that the average birth weight in this country is less than 3.5 kilograms.
Formulation of Hypotheses-
Null Hypothesis: H₀: µ = 3.5
Alternative Hypothesis: H₁: µ ≠ 3.5
As a result, option C: equal to 3.5 kg is the right choice.
Learn more about the Null and Alternative Hypotheses at
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