Question 46
A weight loss clinic had 1,000 clients last year. The distribution of the changes in clients' weights is shown below.
Which of the following Excel formulas would correctly calculate the 95% confidence interval for the true average change in weight? Please note that the formula for calculating confidence intervals in Excel is =CONFIDENCE.NORM(alpha, standard_dev, size).
Question 47
An individual is considering whether to fly or take the train for an upcoming trip. This individual works remotely for $10/hour, but will not be able to work while on the airplane or train. The flight would take two hours and cost $125; the train would take eight hours and cost $50. What are the respective total economic costs of taking the flight and taking the train?
Question 48
A student conducts a two-sided hypothesis test and is looking for a confidence level of 65%. For which of the p-values below would the student reject the null hypothesis? (Select all that apply.)
Question 49
A company buys a machine for $175,000. The machine will be depreciated on straight-line basis over a 10-year period with salvage value of $25,000. The company expects the machine to generate after-tax net cash inflows of $30,000 in each of the 10 years. At the end of the 10 years, the machine is expected to be sold for $25,000. The discount rate is eight percent.
What is the net present value?
Question 50
A college bookstore sells textbooks at a 15 percent discount to professors while successfully selling the same books at full price to students. What conditions are present so that the bookstore can charge different prices? (Select all that apply.)