Mathematics, 06.05.2021 19:30 eden1017
An article in a national publication claims that the mean outstanding credit card balance for college seniors was $515. a sample of 16 college seniors at a large university found a sample mean credit card balance $706 with a sample standard deviation of $325. if we assume that the distribution of outstanding credit card debt is approximately normal, conduct a hypothesis test to determine whether the mean debt of seniors at this university differs from $515. Use α= 0.05 significance level.
Required:
What is the p-value?
Answers: 2
Mathematics, 21.06.2019 21:20
The edge of a cube was found to be 30 cm with a possible error in measurement of 0.4 cm. use differentials to estimate the maximum possible error, relative error, and percentage error in computing the volume of the cube and the surface area of the cube. (round your answers to four decimal places.) (a) the volume of the cube maximum possible error cm3 relative error percentage error % (b) the surface area of the cube maximum possible error cm2 relative error percentage error %
Answers: 3
Mathematics, 21.06.2019 23:30
Ateacher wanted to buy a chair, a bookshelf, two tables and a desk. she spent $900 for all five items and the chair and the desk combined 70% of her total. if the bookshelf cost $50, how much did each of the tables cost?
Answers: 1
An article in a national publication claims that the mean outstanding credit card balance for colleg...
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