Answer:
B. It is reasonable to use the? z-interval procedure in this case? since, although the sample is small? (size less than? 15), the variable under consideration is very close to being normally distributed.
Step-by-step explanation:
answer b is considered to be correct because we know that the population is normal and the standard deviation is known, which allows using the interval z, the answer A is not correct because although the option to use the interval z is given, which is correct, the large sample is not favored, the answer C and D are incorrect because they both reject the use of the z interval and in d it is further rejected that although there is a normal distribution the sample is not, which is false
Answer: 7/13 is already in simplest form.
Step-by-step explanation:
The sides cannot both be divided by the same number, meaning it is already in simplest form.
Divide both sides of the equation by 0.1 which leaves you with
n = 89.9/0.1 = 899
Answer: 11.2$
Step-by-step explanation:
