Mathematics, 27.04.2020 02:08 joleerector113
A cat-lover claims that cats are just as smart as dogs. In order to back this claim up with some evidence she organizes a study at a large local pet daycare center. A random sample of 40 cats are selected and a random sample of 40 dogs are selected. Each of the selected animals is given one hour with a trainer in which the trainer attempts to teach them to roll over. Upon conclusion of the training, the proportion of dogs and proportion of cats that have learned this skill is computed. The trainer reports that she is 90% confident that the true difference in the proportion of all dogs and all cats (pD β pC) that can learn this skill with one hour of training is between Ββ0.05 to 0.28. Which of the following conclusions can be made based upon this confidence interval?
(A) Because most of the values in the confidence interval are positive, this proves that dogs are smarter than cats.
(B) Because the point estimate of the confidence interval is positive, there is convincing evidence that the proportion of all dogs that can learn the skill with one hour of training is greater than the proportion of all cats that can learn the skill with one hour of training.
(C) Because 0 is contained in the interval, there is not convincing evidence that the proportion of all dogs that can learn the skill with one hour of training differs from the proportion of all cats that can learn the skill with one hour of training.
(D) Because 0.115 is contained in the interval, there is not convincing evidence of a difference in the population proportions.
(E) Because the margin of error of the confidence interval is greater than 0.05, there is not convincing evidence that the proportion of all dogs that can learn the skill with one hour of training differs from the proportion of all cats that can learn the skill with one hour of training.
Answers: 1
Mathematics, 21.06.2019 20:00
The function f(x) = 14,600(1.1)* represents the population of a town x years after it was established. what was the original population of the town?
Answers: 1
Mathematics, 21.06.2019 21:00
Sweet t saved 20 percent of the total cost of the green-eyed fleas new album let there be fleas on earth. if the regular price is $30 how much did sweet save
Answers: 1
Mathematics, 21.06.2019 23:10
Given the median qr and trapezoid mnpo what is the value of x?
Answers: 3
Mathematics, 22.06.2019 00:30
The mean average cost of standard room per night at a hostel is ? 20.60. therefore, how much does a standard room cost per night at night-time rest days?
Answers: 1
A cat-lover claims that cats are just as smart as dogs. In order to back this claim up with some evi...
History, 01.07.2019 09:00
Biology, 01.07.2019 09:00
History, 01.07.2019 09:00
History, 01.07.2019 09:00
Business, 01.07.2019 09:00
Physics, 01.07.2019 09:00
Mathematics, 01.07.2019 09:00
Chemistry, 01.07.2019 09:00
Mathematics, 01.07.2019 09:00
Mathematics, 01.07.2019 09:00
Mathematics, 01.07.2019 09:00