Mathematics, 06.08.2021 21:00, jewlbug4358
An experimenter suspects that a certain die is "loaded;" that is, the chances that the die lands on different faces are not all equal. Recall that dice are made with the sum of the numbers of spots on opposite sides equal to 7: 1 and 6 are opposite each other, 2 and 5 are opposite each other, and 3 and 4 are opposite each other.
The experimenter decides to test the null hypothesis that the die is fair against the alternative hypothesis that it is not fair, using the following test. The die will be rolled 30 times, independently. If the die lands with one spot showing 9 times or more, or 0 times, the null hypothesis will be rejected.
Required:
a. The significance level of this test is
b. The power of this test against the alternative hypothesis that the chance the die lands with one spot showing is 14.45%, the chance the die lands with six spots showing is 18.88%, and the chances the die lands with two, three, four, or five spots showing each equal 1/6, is
c. The power of this test against the alternative hypothesis that the chance the die lands with two spots showing is 18.65%, the chance the die lands with five spots showing is 14.68%, and the chances the die lands with one, three, four, or six spots showing each equal 1/6, is
Answers: 2
Mathematics, 21.06.2019 21:00, Anybody6153
Ariana starts with 100 milligrams of a radioactive substance. the amount of the substance decreases by 20% each week for a number of weeks, w. the expression 100(1−0.2)w finds the amount of radioactive substance remaining after w weeks. which statement about this expression is true? a) it is the difference between the initial amount and the percent decrease. b) it is the difference between the initial amount and the decay factor after w weeks. c) it is the initial amount raised to the decay factor after w weeks. d) it is the product of the initial amount and the decay factor after w weeks.
Answers: 1
Mathematics, 21.06.2019 21:30, hailey200127
A. s.a.! similarity in right triangles, refer to the figure to complete this proportionc/a = a/? a.) cb.) hc.) rd.) s
Answers: 1
Mathematics, 21.06.2019 23:20, ajbrock1004
In a small section of a stadium there are 40 spectators watching a game between the cook islands and fiji. they all support at least one of the two teams. 25 spectators support the cook islands and 16 of these support both teams. how many support only fiji?
Answers: 2
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