I would like to have exercises in English
Answer:
knolage and past experiences
Explanation:
what makes humans so different is how we were born and rained so 2 hummers were born and raised in the same way
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.
It is known as hypothesis.
Before experiments, we should set up a hypothesis so that we can expect what happen. But hypothesis does not always has to be right, that's why we have to do experiments to test.
If a hypothesis matches the experiment result, a theory is formed. If it does not, we should adjust different variables in the experiment and set a new hypothesis again.
