Mathematics, 04.04.2020 08:28, avalonr2003
Suppose that the average student buys 12 books a year. You have a theory that by offering a discount you can increase that number. You run a pilot project by offering the discount to a random sample of 25 students and you find that x=14 and s=432.
1. State the null and alternative hypotheses.
2. How many tails is this test?
3. Specify a
4. Compute the value of the test statistic.
5. How many degrees of freedom are there?
6. Give a range for the value.
7. What is your conclusion in statistical terms?
8. What is your conclusion in business terms?
9. Could you use the confidence interval approach to solve this problem? Why or why not?
Answers: 2
Mathematics, 22.06.2019 01:30, ayoismeisjjjjuan
Three students each examine the system of linear equations shown. 8x + 4y = 16 8x + 2y = 8 caleb says there is exactly one solution. jeremy says there is no solution. kim says there are infinitely many solutions. which student is correct? provide mathematical reasoning to support your answer. answer in complete sentences. : d
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Mathematics, 22.06.2019 02:00, arlabbe0606
(30 points). the population of a city is 45,000 and decreases 2% each year. if the trend continues, what will the population be aer 15 yrs
Answers: 2
Suppose that the average student buys 12 books a year. You have a theory that by offering a discount...
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