Mathematics, 17.04.2020 16:43, dounutalien
It is known that the average tuition per semester at colleges in Virginia is $3712. Suppose we take a sample of 15 colleges and find that the average tuition per semester is $4512 with a sample standard deviation of $595. We are interested in testing if the average amount of tuition is increasing.
Using the sample of 15 people, what would the 95% confidence interval be for the population mean?
What are the null and alternative hypotheses?
What is the critical value at 95% confidence?
Calculate the test statistic.
Find the p-value
What conclusion would be made here at the 95% confidence level?
Would my conclusion change if I changed alpha to .01?
Answers: 3
Mathematics, 22.06.2019 02:30, jenaycasmall
Iwill give brainliest. give accurate answer, . suppose tommy walks from his home at (0, 0) to the mall at (0, 5), and then walks to a movie theater at (6, 5). after leaving the theater tommy walks to the store at (6, 0) before returning home. if each grid square represents one block, how many blocks does he walk?
Answers: 2
Mathematics, 22.06.2019 04:30, tinalmath
Acertain drug is made from only two ingredients: compound a and compound b. there are 3 millimeters of compound a used for every 4 millimeters of compound b. if a chemist wants to make 693 milliliters of the drug, how many milliliters of compound a are needed?
Answers: 1
It is known that the average tuition per semester at colleges in Virginia is $3712. Suppose we take...
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