Mathematics, 06.05.2020 02:32, jasminelynn135owmyj1
The time needed for all college students to complete a certain paper-and-pencil maze follows a normal distribution with a population mean of 30 seconds and a population standard deviation of 3 seconds.
You wish to see if the mean time μ (where μ stands for population mean) is changed by vigorous exercise, so you have a group of nine college students exercise vigorously for 30 minutes and then complete the maze. It takes them an sample average of 31.2 seconds to complete the maze. Use this information to test the hypotheses:
H0: μ = 30,
Ha: ≠30
at the significance level of 0.01.
You conclude:
a) There is not enough evidence to support the claim.
b) There is enough evidence to support the claim.
Answers: 2
Mathematics, 21.06.2019 21:30, aesmithswhs
If you have a set of parallel lines a and b cut by transversal x, if angle 1 = 167 degrees, what is angle 4 and why. also what is the measure of angle 5 and why? you need to use the names of the angle relationship and explain.
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Mathematics, 21.06.2019 22:00, irishvball7
How do you write a paragraph proof to prove that the corresponding angles shown are congruent
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Mathematics, 21.06.2019 22:00, highschoolkid621
10 points? ? +++ me asap gabriella uses the current exchange rate to write the function, h(x), where x is the number of u. s. dollars and h(x) is the number of euros, the european union currency. she checks the rate and finds that h(100) = 7.5. which statement best describes what h(100) = 75 signifies? a) gabriella averages 7.5 u. s. dollars for every 100 euros. b) gabriella averages 100 u. s. dollars for every 25 euros. c) gabriella can exchange 75 u. s. dollars for 100 euros. d) gabriella can exchange 100 u. s. dollars for 75 euros.
Answers: 2
Mathematics, 22.06.2019 01:00, rainbowsadie7140
At a book fair, joe bought 24 books at 3 for $5 and had $2 left. how much money did he have at first?
Answers: 2
The time needed for all college students to complete a certain paper-and-pencil maze follows a norma...
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