Answer:
75%
The drawings will help
Refer to the first one to help understand the second.
B. cause it is in sections
Answer:
the probability that an individual, selected at random, will score below the mean on any normally distributed characteristic is just about 0.5.
Step-by-step explanation:
This probability in normal distribution corresponds to z-score of 0. Using normal distribution tables.
P(z < 0) = 1 - P(z ≥ 0) = 1 - 0.5 = 0.5
Which is very logical, to score below the mean on a normal distribution, the probability is just less than 0.5.
Answer:
Lyrics A
Step-by-step explanation:
Problem statement does not mention anything about conditions of the test, so we dont know if the experiment was correctly done, but we know the kind of problem we are facing here is concerning a normal distribution
Then assuming the test was done by knowledgeable people, which means:
- they got correct information from the population
-sample was big enough
- level of confidence was acceptable for the test ( approximately 95 %) - Alternative hypothesis took into account two tails test
-Test was evaluated according to sample size
-And finally calculations were right
Under the above mentioned conditions, they tested the hypotesis H₀ = μ₀ = 16 ounces and they got results that implies the acceptance of such hypothesis (that means the null hypothesis should not be rejected), and the answer is lyrics A
