Answer:
The store manager is 95% confident that the average amount spent by all customers is between $ 31.84 and $ 38.66.
Explanation:
In statistics, a confidence interval is the probability that the parameter of a population lies between two set of values when a random sample of the population is drawn for a specific percentage of times. This means that the confidence interval is formed about the whole population not the sample from which it is calculated.
The probabilities of a confidence interval can take any number, but 95% and 99% confidence level that are usually used.
It should be noted that, for example, 95% confidence level implies that there is a 95% chance that the true mean of the population lies within the calculated confidence interval.
Therefore, the statement which gives a valid interpretation of the interval in the question is the first one which states that "the store manager is 95% confident that the average amount spent by all customers is between $ 31.84 and $ 38.66."
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Answer:
Primary data
Explanation:
Primary data is information collected by a researcher from the field for the first time. The tools used to collect primary data are designed to address a particular problem. Consequently, the gathered information will be relevant to solving the problem at hand. Primary data is first-hand information and is collected using questionnaires, surveys, and interviews.
Secondary data is information that had been collected previously for other purposes but was found useful in another study.
Answer:
the amount that need to be deposited each year is $7,166.28
Explanation:
The computation of the amount that should be deposited each year is shown below:
Given that
FV is $66,000
NPER is 9
RATE is 6.9% ÷ 12 = 0.575%
PV is 0
The formula is shown below:
= PMT(RATE,NPER,PV,-FV,TYPE)
AFter applying the above formula, the amount that need to be deposited each year is $7,166.28
Protecting yourself from exposure to toxic substances in the workplace is an example of promoting <u>environmental wellness.</u>
<h3>Environmental wellness </h3>
Environmental wellness is having good health by occupying pleasant, stimulating environments that support well-being. It promotes interaction with nature and also creating an enjoyable personal environment (both in and out of your workspace).
Learn more about environmental wellness here :
brainly.com/question/18580902
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