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salantis [7]
3 years ago
14

A corn vendor at a farmer’s market was selling a bag of 8 ears of corn for $2.56. Another vendor was selling a bag of 12 for $4.

32. Complete the statement about which bag is the better deal.
The bag of
ears of corn is better a deal because each of ear of corn costs $
less.
Mathematics
1 answer:
Sliva [168]3 years ago
8 0

Answer:

The bag of 8 ears of corn

Step-by-step explanation:

2.56/8 = .32 per ear of corn

4.32/12 = .36 per ear of corn

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Congress regulates corporate fuel economy and sets an annual gas mileage for cars. A company with a large fleet of cars hopes to
Dimas [21]

Answer:

The calculated value t= 3,947 >  2.0301 at 0.05 level of significance ( two tailed test) with 35 degrees of freedom.

Null hypothesis is rejected

There is no strong evidence that they have attained their fuel economy​ goal.

Step-by-step explanation:

<u>Step (i):</u>-

A company with a large fleet of cars hopes to meet the goal of 38.2 mpg or better for their fleet of cars.

Population mean 'μ' = 38.2mpg

Given the gasoline usage for 36 company trips chosen at​ random, finding a mean of 40.20 mpg and a standard deviation of 3.04 mpg.

Sample size 'n' = 36

mean  of the Sample 'x⁻' = 40.20mpg

standard deviation of the Sample 'S' = 3.04 mpg.

<u>Step(ii)</u>:-

Null hypothesis: H₀: 'μ' = 38.2mpg

Alternative hypothesis: H₁: 'μ' ≠ 38.2mpg

Level of significance ∝=0.05

The test of hypothesis

                             t = \frac{x^{-} - mean}{\frac{S}{\sqrt{n} } }

                            t = \frac{40.20- 38.20}{\frac{3.04}{\sqrt{36} } } = 3.947

The degrees of freedom ν= n-1 = 36-1 =35

The tabulated value t₀.₀₅ =  2.0301 at 0.05 level of significance ( two tailed test) with 35 degrees of freedom.

The calculated value t= 3,947 >  2.0301 at 0.05 level of significance ( two tailed test) with 35 degrees of freedom.

Null hypothesis is rejected

<u>Conclusion:</u>-

There is no strong evidence that they have attained their fuel economy​ goal.

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aliya0001 [1]
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Kay [80]

Answer:

MD

Step-by-step explanation: hope this helps :)

7 0
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allsm [11]

Answer:

Step-by-step explanation:

 \frac{35}{100} *120\\=7*6\\=42

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