subject
Mathematics, 13.12.2021 19:50 mackdoolittle1

A recent study compared the time spent together by single- and dual-earner couples. According to the records kept by the wives during the study, the mean amount of time spent together watching television among the single-earner couples was 61 minutes per day, with a standard deviation of 15.5 minutes. For the dual-earner couples, the mean number of minutes spent watching television was 48.4 minutes, with a standard deviation of 18.1 minutes. At the .01 significance level, can we conclude that the single-earner couples on average spend more time watching television together? There were 15 single-earner and 12 dual-earner couples studied. Hint: For the calculations, assume the single-earner as the first sample.

(1) This is a two/one-tailed test.
(2) The decision rule is to reject if t is greater than/equal to/less than . (Round your answer to 3 decimal places.)
(3) The test statistic is t = . (Round your answer to 3 decimal places.)
(4) What is your decision regarding ? Reject. Do not reject.

ansver
Answers: 2

Another question on Mathematics

question
Mathematics, 21.06.2019 17:40
The perimeter of a rectangle is greater than or equal to 74 meters. if the length is 25 meters, the minimum width of the rectangle is meters.
Answers: 2
question
Mathematics, 21.06.2019 18:00
What percent of the circle below is shaded?
Answers: 1
question
Mathematics, 21.06.2019 18:10
The means and mean absolute deviations of the individual times of members on two 4x400-meter relay track teams are shown in the table below. means and mean absolute deviations of individual times of members of 4x400-meter relay track teams team a team b mean 59.32 s 59.1 s mean absolute deviation 1.5 s 245 what percent of team b's mean absolute deviation is the difference in the means? 9% 15% 25% 65%
Answers: 2
question
Mathematics, 21.06.2019 19:00
Lena reflected this figure across the x-axis. she writes the vertices of the image as a'(−2, 8), b'(−5, 6), c'(−8, 8), d'(−4, 2).
Answers: 2
You know the right answer?
A recent study compared the time spent together by single- and dual-earner couples. According to the...
Questions
Questions on the website: 13722367