Answer: b
Step-by-step explanation:
I took the test and got it right
good luck!
Answer:
Note: The full question is attached as picture below
a) Hо : p = 0.71
Ha : p ≠ 0.71
<em>p </em>= x / n
<em>p </em>= 91/110
<em>p </em>= 0.83.
1 - Pо = 1 - 0.71 = 0.29.
b) Test statistic = z
= <em>p </em>- Pо / [√Pо * (1 - Pо ) / n]
= 0.83 - 0.71 / [√(0.71 * 0.29) / 110]
= 0.12 / 0.043265
= 2.77360453
Test statistic = 2.77
c) P-value
P(z > 2.77) = 2 * [1 - P(z < 2.77)] = 2 * 0.0028
P-value = 0.0056
∝ = 0.01
P-value < ∝
Reject the null hypothesis. There is sufficient evidence to support the researchers claim at the 1% significance level.
The probability that will not rain today is: 85%
100% - 15% = 85%
The correct answer is A
Ubik's Cube is a 3 D combinations puzzle invented in 1974 by Hungarian sculptor and professors of architectures Ernő Rubyik. Originally called the Magic Cube,the puzzle was licensed by Rubik to be sold by Ideal Toy Corporation. in 1980 via businessman Tibor Laczi and Seven Towns founder Tom Kremer,and won the German game of the year special award for Best Puzzle that year. As of January 2009, 350 million cubes had been sold worldwide making it the world's top-selling puzzle game.It is widely considered to be the world's best-selling toy.
to play this game and to learn you need a lot of concentration and practice !
