Mathematics, 11.03.2020 06:23 bear7823

A person was able to go on 6 rides that entire day out of the 26 rides available. In the population of all theme-park attendees, the mean number of rides gone on in a single day is 13, with a standard deviation of 4. The distribution is normal.
Two recent theme-park visitors, Regan and Jake, report the number of rides they went on in a single day: Regan = 9 rides, Jake = 15 rides.

a. As a general question: Using a z-table, what percentage of scores will fall within +/- 1
SD from the mean, within +/- 2 SD from the mean, and within +/- 3 SD from the mean?

b. What proportion of people go on more rides than Regan?

c. What proportion of people rode fewer rides than Jake?

d. What percentage of people went on more rides than
Regan, but less rides than Jake? What percentage of people fall in
between Regan and Jake’s ride count?

e. If we know that another theme park visitor goes on more rides than 80% of the
population, what would his/her corresponding z-score and raw score (number of rides
went on) be?

f. Based on what you know about the mean and standard deviation of the number of rides gone on in a single day, is there any indication that either Regan or Jake seem to fall outside of the normal range of rides gone on in a day (use a z-score = +/- 2.0 as your
cutoff) and may be exhibiting signs of extreme theme park activity? What leads you to
your claim?

Answers: 1

Show answers

Other questions on the subject: Mathematics

Mathematics, 21.06.2019 18:30, Braxton12

This is my question~~ ( r ^ 4 - 2r ^ 3 - 23 r ^ 2 - 4r - 32)÷(r+4) ~~ i must use long division to solve it : / i was wondering if anyone world like to solve it. and if so, share step-by-step explanations! you! ❤

Answers: 2

continue

Mathematics, 21.06.2019 20:00, gordon57

Someone answer asap for ! max recorded the heights of 500 male humans. he found that the heights were normally distributed around a mean of 177 centimeters. which statements about max’s data must be true? a. the median of max’s data is 250 b. more than half of the data points max recorded were 177 centimeters. c. a data point chosen at random is as likely to be above the mean as it is to be below the mean. d. every height within three standard deviations of the mean is equally likely to be chosen if a data point is selected at random.

Answers: 1

continue

Mathematics, 21.06.2019 21:30, Travon6524

Ten members of balin's soccer team ran warm ups for practice. each member ran the same distance. their combined distance was 5/6 of a mile. to find the distance that each member ran, balin wrote the expression below.

Answers: 3

continue

Mathematics, 22.06.2019 02:40, blake4033

An oil exploration company currently has two active projects, one in asia and the other in europe. let a be the event that the asian project is successful and b be the event that the european project is successful. suppose that a and b are independent events with p(a) = 0.2 and p(b) = 0.8. (a) if the asian project is not successful, what is the probability that the european project is also not successful? (b) what is the probability that at least one of the two projects will be successful? (c) given that at least one of the two projects is successful, what is the probability that only the asian project is successful? (round your answer to three decimal places.)

Answers: 3

continue

You know the right answer?

A person was able to go on 6 rides that entire day out of the 26 rides available. In the population...