Mathematics, 14.10.2020 02:01 valereeolivarez56
Read the following case and provide answers to all the questions.
Individuals filing federal income tax returns prior to March 31 received an average refund of $1056. Consider the population of last minute files who mail their tax return during the last five days of the income tax period.
a. A researcher suggest that a reason individuals wait until the last five days is that on average these individuals receive lower refunds than do early filers. Develop appropriate hypotheses such that rejection of H0 will support the researcher’s contention.
b. For a sample of 400 individuals who filed a tax return between April 10 and 15, the sample mean refund was $910. Based on prior experience, a population standard deviation of σ =$1600 may be assumed. What is the p-value?
c. At α=.05, what is your conclusion?
d. Repeat the preceding hypothesis test using the critical value approach.
Answers: 1
Mathematics, 21.06.2019 20:10
Read the excerpt from the strange case of dr jekyll and mr. hyde what do dr. jekyll's thoughts reveal about him in this excerpt? [t]he inmates of my house were locked in the most rigorous hours of slumber, and i determined, flushed as i was with hope and triumph, to venture in my new shape as far as to my bedroom. i crossed the yard, wherein the constellations looked down upon me, i could have thought, with wonder, the first creature of that sort that their unsleeping vigilance had yet disclosed to he is jealous of those who can sleep through the night. he is revered for his scientific advances. he is interested in studying the movements of the stars he is proud and enthusiastic about his initial results.
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Mathematics, 22.06.2019 01:00
Jack is considering a list of features and fees for current bank: jack plans on using network atms about 4 times per month. what would be jack’s total estimated annual fees for a checking account with direct paycheck deposit, one overdraft per year, and no 2nd copies of statements? a. $44 b. $104 c. $144 d. $176
Answers: 1
Read the following case and provide answers to all the questions.
Individuals filing federal income...
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