Asimple random sample of 100 postal employees is used to test if the average time postal employees have worked for the postal service has changed from the value of 7.5 years recorded 20 years ago. the sample mean was x = 7 years with a standard deviation of s = 2 years. assume the distribution of the time the employees have worked for the postal service is approximately normal. the hypotheses being tested are h0: μ = 7.5, ha: μ ≠ 7.5. a one-sample t test will be used. what are the appropriate degrees of freedom for this test?
Answers: 1
Business, 22.06.2019 07:10, carlybeavers50
In a team environment, a coordinator is? a person with expert knowledge or skills in a particular area the team needs. a good listener who works to resolve social problems among teammates. a leader who team members focus on their tasks. a good networker who likes to explore new ideas and possiblities.
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Business, 22.06.2019 08:30, justalikri
Most angel investors expect a return on investment of question options: 20% to 25% over 5 years. 15% to 20% over 5 years. 75% over 10 years. 100% over 5 years.
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Business, 22.06.2019 11:30, fjjjjczar8890
Which of the following statements about cash basis accounting is true? a. it is more complicated than accrual basis accounting. b. the irs allows all types of corporations to use it. c. it follows gaap standards. d. it ensures the company always knows how much cash flow it has.
Answers: 2
Business, 23.06.2019 02:50, shay03littletop5kx2p
In the market for lock washers, a perfectly competitive market, the current equilibrium price is $5 per box. washer king, one of the many producers of washers, has a daily short-run total cost given by tc = 190 + 0.20q + 0.0025q2, where q measures boxes of washers. washer king's corresponding marginal cost is mc = 0.20 + 0.005q. how many boxes of washers should washer king produce per day to maximize profit?
Answers: 1
Asimple random sample of 100 postal employees is used to test if the average time postal employees h...
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