subject
Mathematics, 18.11.2020 01:40 mommytobe2019

At Rachel's 11th birthday party, 8 girls were timed to see how long (in seconds) they could hold their breath in a relaxed position. After a two-minute rest, they timed themselves while jumping. The girls thought that the mean difference between their jumping and relaxed times would be zero. Test their hypothesis at the 5% level. What is the test statistic

ansver
Answers: 3

Another question on Mathematics

question
Mathematics, 21.06.2019 19:30
In need of in the diagram, ∠abc is a right angle. ∠dbc = 30°27'40". find the measure of ∠abd.
Answers: 1
question
Mathematics, 21.06.2019 20:00
He weights of 2-pound bags of best dog food are approximately normally distributed with a given mean  and standard deviation  according to the empirical rule, what percentage of the bags will have weights within 3 standard deviations of the mean? 47.5%68%95%99.7%
Answers: 3
question
Mathematics, 21.06.2019 20:30
Sketch the region enclosed by the given curves. decide whether to integrate with respect to x or y. draw a typical approximating rectangle and label its height and width. y= 5x, y=7x^2then find the area s of the region.
Answers: 3
question
Mathematics, 21.06.2019 20:30
Aregular pan has a length that is 4/3 the width. the total area of the pan is 432in.2. what is the width of the cake pan?
Answers: 1
You know the right answer?
At Rachel's 11th birthday party, 8 girls were timed to see how long (in seconds) they could hold the...
Questions
question
Mathematics, 18.05.2021 15:30
question
Physics, 18.05.2021 15:30
question
Mathematics, 18.05.2021 15:30
question
Health, 18.05.2021 15:30
Questions on the website: 13722367