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larisa [96]
3 years ago
10

A statistical test is conducted to see if there is evidence that the proportion of US citizens who can name the capital city of

Canada is greater than 0.75. Use the following possible sample results Sample A: 38 successes out of 40 Sample B: 31 successes out of 40 Sample C: 34 successes out of 40 Sample D: 27 successes out of 40 (a) State which of the possible sample results provides the most significance evidence for the claim Sample A Sample B Sample C Sample D SHOW HINT LINK TO TEXT (b) State which (if any) of the possible results provide no evidence for the claim Sample A Sample B SempleC Sample D None
Mathematics
1 answer:
Delvig [45]3 years ago
4 0

Answer:

a) Sample A

b) Sample D

Step-by-step explanation:

The sample that will provide the most significance evidence for the claim is the one that has the bigger proportion of US citizens who can name the capital city of Canada.

The sample that has the bigger proportion is Sample A, with p=38/40=0.95.

The samples that have a proportion of 0.75 of less surely will give no evidence for the claim.

The sample D has a proportion of p=27/40=0.675, which is less than 0.75, so it doesn't provide evidence for the claim.

Sample C has a proportion of 0.775. Is very close to 0.75, but its value as evidence depends on the level of significance of the test.

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Answer:

Step-by-step explanation:

<em>Step 1: Determine quantity per liquid</em>

liquid 1=7/8 cup

liquid 2=9/10 cup

<em>Step 2: Derive expression to calculate total amount of mixture</em>

The expression below can be derived;

T=a+b

where;

T=total amount of mixture

a=total amount of liquid 1

b=total amount of liquid 2

In our case;

a=7/8 cup

b=9/10 cup

replacing;

T=(7/8)+(9/10)=1 31/40 cups

The total amount of mixture=1 31/40 cups

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Step-by-step explanation:

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3 years ago
What is the probability of rolling a 1 with a number cube that has the numbers 1, 2, 3, 4, 5, and 6 and tossing heads with a coi
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7 0
3 years ago
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I need some help please
gizmo_the_mogwai [7]

Answer:

a) -10

b) 7

Step-by-step explanation:

a) 2(x + 3) = x - 4

=  > 2x + 6 = x - 4

=  > 2x - x =  - 4 - 6

=  > x =  - 10

b) 4(5x - 2) = 2(9x + 3)

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3 years ago
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