QUESTION 3
A class wrote two Mathematics tests. 72% of the class
passed both tests and 90% of the class passed the first test.
A student is chosen at random from this class. What is the probability that the student passed the second test given
that the student passed the first test?
QUESTION 4
The mean number of cars confiscated by a wrecker is five per day. Using the
Poisson distribution,
a) find the probability of the number of cars confiscated on any given day is
exactly 5
b) At most 3
c) More than 3
QUESTION 5
A bus company advertised a mean time of 150 minutes for a
trip between two cities. A consumer group had reason to
believe that the mean time was more than 150 minutes. A
sample of 40 trips showed a mean ˉx=153 minutes and a
standard deviation s=7.5 minutes. At the 0 .05 level of
significance, test the consumer group’s belief.
QUESTION 3 A class wrote two Mathematics tests. 72% of the class passed both tests and...
QUESTION 5 A bus company advertised a mean time of 150 minutes for a trip between two cities. A consumer group had reason to believe that the mean time was more than 150 minutes. A sample of 40 trips showed a mean ˉx=153 minutes and a standard deviation s=7.5 minutes. At the 0 .05 level of significance, test the consumer group’s belief.
QUESTION 4 The mean number of cars confiscated by a wrecker is five per day. Using the Poisson distribution, a) find the probability of the number of cars confiscated on any given day is exactly 5 b) At most 3 c) More than 3
i need help on question 3 to 22 please. Midterm ex review. MATH 101 Use the following information to answer the next four exercises. The midterm grades on a chemistry exam, graded on a scale of 0 to 100, were: 62, 64, 65, 65, 68, 70, 72, 72, 74, 75, 75, 75, 76,78, 78, 81, 82, 83, 84, 85, 87, 88, 92, 95, 98, 98, 100, 100,740 1. Do you see any outliers in this data? If so, how would...
Help I have taken this test so many times : These tests are intended for master's and doctoral students. Read these directions carefully! The below test includes 10 questions, randomly selected from a large inventory. Most questions will be different each time you take the test, You must answer at least 9 out of 10 questions correctly to receive your Certificate. You have 40 minutes to complete each test, and you must answer all 10 questions in order to to...