dependence on non renewable sources
A hypothesis for this observation might be that malaria is not endemic to southern Africa. It is a plausible explanation of a given scientific question.
<h3>Hypothesis and scientific method</h3>
A hypothesis is a plausible explanation of an observation of the natural world, which must be tested by using the scientific method.
Testing a hypothesis involves performing additional observational and/or experimental procedures in order to confirm or reject this assumption.
In this case, the sickle cell allele is found in high frequency in regions where malaria is endemic.
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Geosphere is the sphere containing sediments as well as rocks
- hydrosphere can be regarded as the sphere which contains total amount of water that exist on a planet.
- The geosphere can be regarded as the collective name that is used to call the atmosphere of the earth lithosphere as well as hydrosphere, and cryosphere.
- The geosphere can be regarded as sphere which contains the rocks as well as minerals on Earth
- The geosphere is also the sphere with abiotic/non-living parts of soils as well as the skeletons of animals, it also contains sediment as well as rocks.
- An atmosphere can be regarded as the layers which consists of gases which envelope a planet.
Therefore, geosphere is collection of spheres containing sediments as well rocks.
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Claim: the mean resting pulse rate for men is less than 72
bpm.
Symbolic form would be: μ < 72
Step 1: null hypothesis : μ > = 7 2 b p m
Step 2: alternative hypothesis: μ < 7 2 b p m
Step 3: the test statistic is z = mean – μ / standard dev/sqrt (n) = -3/4 / 1.7639 = -1.92
Step 4: c v method: since z α = -1.645, the test static is z = -1.92 is less than the CV, we reject null hypothesis
P Value method: area is 0.0274, since the p value is <= α, reject null hypothesis.
Step 5: the sample data support the claim that the mean resting pulse rate for men is less than 72 bpm.