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Mashutka [201]
3 years ago
7

Please please help me with this.

Mathematics
1 answer:
puteri [66]3 years ago
5 0

Answer:

B

Step-by-step explanation:

Since the inequality is < then the line separating the shaded and plain regions will be broken.

Thus graph A or B

Choose a test point in each shaded region and check validity of solution

From A choose (0, 2), then

2 < 0 + \frac{4}{7} → 2 < \frac{4}{7} ← False

From B choose (0, - 2), then

- 2 < 0 + \frac{4}{7} → - 2 < \frac{4}{7} ← True

Thus the graph representing the inequality is B

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In 2004, a survey on computer crime indicated that 7% of reported unauthorized uses of business Web sites came from inside the c
masya89 [10]

Answer:

a) H0 : P = 0.07

   Ha : P ≠ 0.07

b) p -value = 0.1770

Step-by-step explanation:

P = 7% = 0.07

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p = x / n = 7 / 163 = 0.043

<u>a) Using a significance level ( ∝ ) of 0.05, estimate the appropriate hypothesis</u>

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Ha : P ≠ 0.07

conduct a  Z- test statistic

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Critical value ( Z₀.₀₂₅ ) = ± 1.96

<em>we fail to reject H0 given that | z | < Zcritical because there is not enough evidence to conclude that proportion change</em>

<u>b) Determine the p-value of the test </u>

P-value = P ( | Z | > Z )

             = 2 * P ( Z < -1.35 )

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The p-value ( 0.1770 ) > ∝ ( 0.05 ) hence we fail to reject H0 ( i.e. the conclusion agrees with part a above )

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The stack on the left is made up of 15 pennies in the stack on the right is also made about 50 pennies if the volume of the stac
masha68 [24]
15x = 375 mm cubed
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50x=y
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