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.
Answer:
Abcissa = X, and Ordinate = Y
(-7,-2)
Is the answer
Answer:
6+12y
Step-by-step explanation:
By using the distribution property
Answer:
-54
Step-by-step explanation:
2*-3^3 is the same as 2*-3*-3*-3
Answer:
1155
Step-by-step explanation:
We need to determine 55% of 2100 now and the procedure explaining it as such
Step 1: In the given case Output Value is 2100.
Step 2: Let us consider the unknown value as x.
Step 3: Consider the output value of 2100 = 100%.
Step 4: In the Same way, x = 55%.
Step 5: On dividing the pair of simple equations we got the equation as under
2100 = 100% (1).
x = 55% (2).
(2100%)/(x%) = 100/55
Step 6: Reciprocal of both the sides results in the following equation
x%/2100% = 55/100
Step 7: Simplifying the above obtained equation further will tell what is 55% of 2100
x = 1155%
Therefore, 55% of 2100 is 1155
