The conclusion of the research is that we reject the null hypothesis and we conclude that the bag filling machine does not work correctly at the 426 gram setting.
<h3>How to solve hypothesis testing?</h3>
We are given;
Population Mean; μ = 426
Sample mean; x' = 433
Sample size; n = 13
Standard deviation; s = 29
significance level; α = 0.05
Let us define the hypotheses;
Null Hypothesis; H₀: μ = 426 g
Alternative Hypothesis; H_a: μ < 426 g
Formula for the z-score here is;
z = (x' - μ)/(s/√n)
z = (433 - 426)/(29/√13)
z = 0.87
From online p-value from z-score calculator, we have;
p-value = 0.1922
This p-value is greater than the significance value and as such we reject the null hypothesis and we conclude that the bag filling machine does not work correctly at the 426 gram setting.
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The anoles that changed were the descendants of the anoles studied four years earlier by Losos.
<h3>What is natural selection?</h3>
Natural selection is a term that refers to the evolutionary process that is based on the principle that establishes the survival of the fittest or the preponderance of the law of the strongest in a natural environment without external intervention.
In natural selection, the least fit or weakest individuals perish and their traits are not transmitted to the following generations by not reproducing.
According to the above, it can be inferred that the traits of the weak or less fit organisms studied four years earlier were not transmitted to the following generations, so the organisms studied by Losos four years later are not the same, but the offspring of The originals.
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Answer: the population has a mean of less than 30
Explanation:
In interval estimation, the t distribution is applicable only when a. the population has a mean of less than 30. the sample standard deviation (s) is given instead of the population standard deviation
The statement about ADHD that is true is: "ADHD has no clear physical symptoms that can be detected via an x-ray or blood test"
<h3>What is ADHD?</h3>
This is an acronym for a kind of mental disorder that is called Attention Deficit Hyperactivity Disorder (ADHD).
Attention deficit hyperactivity disorder (ADHD) is a neurodevelopmental psychiatric condition.
It is characterized by challenges concentration, excessive activity, or difficulty restraining behavior that is inappropriate for a man's age.
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The unsuccessful winter campaign in Russia exposed Napoleon's army to extreme cold and The French army's inability to master guerilla warfare led to its defeat in the Peninsula War.
