This equals $57.24 the final price after the 6% tax and the 20% discount. In order to calculate the discount first, I: Multiplied $67.50 x $.20. This equals $13.50 (the discount total). Next, I calculated $67.50 - $13.50. This equals $54.00.
You win a dollar if the proportion of red marbles is larger than that of blue marbles, that is, if you get a proportion > 0.5 of reds. We know by the law of averages that chance error relative to the number of draws = (proportion of reds you get)- (proportion of reds expected) gets smaller and smaller as n increases. So use that to decide between the choices. So n=200 will get you closer to the true proportion of reds ( > 1/2) than n=100, and therefore n=200 will get you closer to winning the $1. p.286.
Joe makes $15 per hour and works 40 hours per week. 30-year mortgage interest rate of 6.25% and a monthly payment of $439.00 15-year mortgage interest rate of 5.25% and a monthly payment of $575.00 Down payment: 5% minimum Taxes last year were $375. Insurance is $250 per year. What you are looking for: 1. Can Joe afford the monthly payments with taxes and insurance for either a 30 or 15 year mortgage?
Rochelle decided to compare two plants for 50 days, Memphis plant-which will have the vector drive and Birmingham plant-which will use the existing system and prepare a report. The financial analysts believe that the purchase can be justified if the equipment leads to the average increase in production of atleast 10,000 bricks per day. Since we have to check whether the difference between the mean value of the bricks per day at Memphis plant and Birmingham plant is greater than 10000(for purchase to be justified), we will use hypothesis testing for means and compare the sampling distribution of the mean value of bricks produced in a day. This method is the typical method to solve these kind of problems. Data available is Plant Total Bricks produced in 50 days S (standard deviation) x̄ (mean) Memphis 7484500 3402.46 149690 Birmingham 6902350 3364.68 138047 Hypothesis test In a hypothesis test we assume Ho to be true and try to find evidence that shows otherwise.
HISTORY EFFECT: Occurs when some change other than the experimental treatment occurs during the course of an experiment that affects the dependent variable COHORT EFFECT: Refers to a change in the dependent variable that occurs because members of one experimental group experienced different historical situations than members of other experimental groups MATURATION EFFECTS: Effects that are function of time and the naturally occurring events tht coincide with growth and experience TESTING EFFECTS: A nuisance effect occurring when the initial measurement or test alerts or primes subjects in a way that affects their response to the experimental treatments INSTRUMENTATION EFFECT: A nuisance that occurs when a change in the wording of question, a change in interviewers, or a change in other procedures causes a change in the dependent variable SELECTION EFFECT: Sample bias from differential selection of respondents for experimental groups MORTALITY EFFECT (SAMPLE ATTRITION): Occurs when some subjects withdraw from a the experiment before it is completed EXTERNAL VALIDITY: The accuracy with which experimental results can be generalized beyond the experimental subjects BASIC EXPERIMENTAL DESIGN: An experimental design in which only one variable is
Practice Test 4 –Bus 2023 Directions: For each question find the answer that is the best solution provided. There is only one correct answer. 1. For a sample size of 30, changing from using the standard normal distribution to using the t distribution in a hypothesis test, a. will result in the rejection region being smaller b. will result in the rejection region being larger c. would have no effect on the rejection region d. Not enough information is given to answer this question. ANSWER: a -recall that all the t-values are larger than the z-values so it makes it more difficult to reject the null.
All sales are made on account at $20 per unit. Sixty percent of the sales are collected in the month of sale; the remaining 40% are collected in the following month. Forecasted sales for the first five months of 20X2 are: January, 1,500 units,- February, 1,600 units; March, 1,800 units; April, 2,000 units; May, 2,100 units. 2. Management wants to maintain the finished goods inventory at 30% of the following month's sales.
Since the households chosen constitute a random sample, viewing choice is independent from one sampled household to the next, so the probability that the first household would tune in to the new show and the second household would tune in to the new show is . For the same reason, the probability that the first household would tune in to the new show and the second household would tune in to the new show and the third household would tune in to the new show is
• Based on the data collected on a typical day, what is the probability that oil change will take 15 minutes or less time? Class Interval Frequency 6 to 10 minutes 3 11 to 15 minutes 8 16 to 20 minutes 6 21 to 25 minutes 2 More than 25 Minutes 1 11/20= 55% chance that the oil change will take 15 minutes or less. • What are the characteristics of standard normal distribution? A standard normal distribution is defined as a normal distribution with the numbers 0 and 1, according to the Statistics for Business and Economics book. •
Box G7 or Box G18 Activity 5.7 In Activity 5.1 you used the BAS worksheet to complete the quarterly BAS for The Nice Scent Shoppe. Now we will give you some further information for that quarter and you are to complete the BAS Summary report using Option 2 for PAYG income tax instalment. 1. The FBT instalment has been notified as $2400. The firm requires this to be varied to an annual FBT payable of $12 000.