Mathematics, 15.04.2020 23:53, caromaybelline71
Multiple-choice questions on Advanced Placement exams have five options: A, B, C, D, and E.
A random sample of the correct choice on 400 multiple-choice questions on a variety of AP exams shows that B was the most common correct choice, with 90 of the 400 questions having B as the answer.
Does this provide evidence that B is more likely than 20% to be the correct choice?
a. Define the parameter, state hypotheses, and calculate the sample statistic.
b. Is a Normal distribution appropriate for this test, based on the values of n and Po? Explain.
c. Calculate the standard error and z-test statistic, assuming a Normal distribution is appropriate.
d. Find the p-value and draw a Normal curve with appropriate shaded region. You may give either a precise p-value from Statkey or bounds on a p-value from Table A.
e. State the conclusion of the test in context f. Find a 95% confidence interval for the proportion ofquestions on all AP exams having B as the correct choice using the normal distribution and the formula for standard error. Show your calculations
Answers: 3
Mathematics, 21.06.2019 16:10, cthompson1107
Which expression gives the area of the triangle shown below
Answers: 1
Mathematics, 21.06.2019 18:00, mooreadrian412
The brain volumes (cm cubed) of 50 brains vary from a low of 904 cm cubed to a high of 1488 cm cubed. use the range rule of thumb to estimate the standard deviation s and compare the result to the exact standard deviation of 175.5 cm cubed, assuming the estimate is accurate if it is within 15 cm cubed
Answers: 2
Mathematics, 21.06.2019 20:30, Trinhphuongtran
You have a square piece of cardboard that measures 14 inches on each side. to build a box, you cut congruent squares out of each corner of the cardboard. use the picture to find the area of the cardboard you were used to build the box
Answers: 2
Multiple-choice questions on Advanced Placement exams have five options: A, B, C, D, and E.
Mathematics, 27.10.2020 21:50
Mathematics, 27.10.2020 21:50
Mathematics, 27.10.2020 21:50
English, 27.10.2020 21:50
Mathematics, 27.10.2020 22:00
Mathematics, 27.10.2020 22:00