With a view to manage the availability of classrooms for in-person lectures in the lightof the pandemic situation being unstable, a university with a large enrolment randomlysampled 1375 students. Of these students 751 responded to prefer in-person lectures.In order to infer the fraction of students who prefer in-person lectures (p):(i)dence interval for p.Check all the conditions or assumptions required for constructing a confi-(ii)Compute the standard error of sample proprtion (p).(ii)Obtain a 95% confidence interval for p. What is the margin of error?

Answered: Image /qna-images/answer/7e3f7065-197f-4fe7-90ea-79ec7e810211.jpg

Answered: With a view to manage the availability…

A First Course in Probability (10th Edition)

10th Edition

ISBN:9780134753119

Author:Sheldon Ross

Publisher:Sheldon Ross

Chapter1: Combinatorial Analysis

Section: Chapter Questions

Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...

See similar textbooks

Similar questions

A major credit card company is investigating whether the distribution of the number of credit cards used by its customers has changed from last year to this year. Customers are classified as using 1 card, 2 cards, or more than 2 cards. The company conducts a chi-square goodness-of-fit test to investigate whether there is a change in the distribution of number of cards used from last year to this year. The value of the chi-square test statistic was χ2=7.82χ2=7.82 with a corresponding pp-value of 0.02. Assuming the conditions for inference were met, which of the following is the correct interpretation of this pp-value?
I am needing help with how to answer this in R. 1. A [national survey](http://www.pewinternet.org/2012/11/01/how-teens-do-research-in-the-digital-world/) in 2012 showed that 75% of middle and high school teachers believe their students use Wikipedia for typical research statements. Let X equal the number of teachers in a random sample of size n = 40 who believe their students use Wikipedia. i) How is X distributed? ii) Use `plotDist()` to draw the probability distribution of X. iii) Compute the probability that X is equal to 30.
The population of adult women in the U.S. have a mean foot length of 9.58 inches and a standard deviation of 0.51 inches, which is normally distributed. Using a TI 84 graphing calculator: Calculate P(1 woman has foot length < 9.6 inches) =Calculate P(Group of 22 women have a mean foot length < 9.5 inches) =Calculate P(Group of 6 women have a mean foot length between 9 and 10 inches) Be sure to show calculator commans used.
Any help is greatly appreciated:)
With a view to manage the availability of classrooms for in-person lectures in the light of the pandemic situation being unstable, a university with a large enrolment randomly sampled 1175 students. Of these students, 751 responded to prefer in-person lectures. In order to infer the fraction (proportion) of students who prefer in-person lectures (p): (i) dence interval for p. Check all the conditions or assumptions required for constructing a confi- (ii) Compute the standard error of sample proprtion (p). (iii) Obtain a 95% confidence interval for p. What is the margin of error? The university management wanted to see 30% smaller margin of error but (iv) with the same confidence as in part (ii), determine the sample size.
The mean of 345 quantities is 5.9. Suppose one more value X346 is added to the data set, and the new mean is nonnegative(greater than or equal to 0). Find the minimum possible value of X346-
A researcher selects a random sample of 58 mice from her laboratory. For each mouse, she records the weight of the mouse in grams and whether the mouse prefers Brand A or Brand B food. She would like to know if there is convincing evidence that mouse weight is associated with food preference. Let = 0.10. The observed and expected counts are displayed in the tables. Observed counts: Expected counts: Which of the following contributed the most to the value of the χ2 statistic? average weight and Brand A average weight and Brand B not average weight and Brand A not average weight and Brand B
3) An airline claims that the no-show rate for passengers is less than 5%. In a sample of 420 randomly selected reservations, 19 were no-shows. At α = 0.01, test the airline's claim. Round to the nearest thousandth when calculating the test statistic.

Recommended textbooks for you

A First Course in Probability (10th Edition)

Probability

ISBN:

9780134753119

Author:

Sheldon Ross

Publisher:

PEARSON

A First Course in Probability

Probability

ISBN:

9780321794772

Author:

Sheldon Ross

Publisher:

PEARSON

A First Course in Probability (10th Edition)

Probability

ISBN:

9780134753119

Author:

Sheldon Ross

Publisher:

PEARSON

A First Course in Probability

Probability

ISBN:

9780321794772

Author:

Sheldon Ross

Publisher:

PEARSON

SEE MORE TEXTBOOKS