Answer:
The answer is below
Explanation:
a)
Given that mean (μ) = $1500, standard deviation (σ) = $200, sample size (n) = 100
confidence (C) = 95% = 0.95
α = 1 - C = 1 - 0.95 = 0.05
α/2 = 0.05 / 2 = 0.025
The z score that corresponds with 0.475 (0.5 - 0.025) is 1.96. Therefore the margin of error (E) is:
The confidence interval = (μ ± E) = (1500 ± 39.2) = (1500 - 39.2, 1500 + 39.2) = (1460.8, 1539.2)
The confidence interval is between $1460.8 and $1539.2.
b) Given that mean (μ) = $1500, standard deviation for 100 samples = σ /√n = $200,
confidence (C) = 95% = 0.95
The confidence interval = (μ ± E) = (1500 ± 392) = (1500 - 392, 1500 + 392) = (1108, 1892)
The confidence interval is between $1108 and $1892.
Answer:
The correct answer is letter "A": the difference in total costs that result from selecting one choice instead of another.
Explanation:
Differential cost is the result of subtracting the costs of two different options from where only one is to be selected. The concept is mostly used at the moment of producing when the firm must find out the difference in manufacturing one more unit of a good. Differential costs can be variable or fixed costs.
The polyester fiber is often blended with fibers such as cotton, wool, rayon, acetate and linen. Fabrics containing the polyester fiber are easy to care for and are wrinkle resistant in wear.
Answer:
d. 4 years
Explanation:
Cash payback period is the time on which the company receive from the investment the same amount of money investment
cash fows = investment
regardless of discount or interest rates or changes in the value of the equipment. It is just answerng:
I put 100,000 dollars in the project, when I get 100,000 dollars back ?
The usual formula will be:
380,000/ 95,000 = 4 years
Answer:
The correct answer is letter "D": Explanatory.
Explanation:
Explanatory research typically is carried out when preliminary research was not made successfully, is unclear or vague. Explanatory research is based on factual data -mainly numerical- that allows the researcher to support the detailed descriptions that must be reported as conclusions of the study.
