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icang [17]
3 years ago
9

If you earn 15.50 per hour at market basket, how much do you earn in 5 1/2​

Mathematics
1 answer:
Black_prince [1.1K]3 years ago
3 0

Answer:

15.50/hr

1hr=15.50

51/2=?

15.50×51/2=

82.50$

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Answer:

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Step-by-step explanation:

The given parameters are;

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The standard deviation, s = 2.77 inches

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The null hypothesis; H₀ μ = \overline x

The alternative hypothesis; Hₐ μ ≠ \overline x

The significance level, α = 0.05

The t test for the sample with unknown population standard deviation is given as follows;

t=\dfrac{\bar{x}-\mu }{\dfrac{s }{\sqrt{n}}}

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The degrees of freedom, df = n - 1 = 43 - 1 = 42

The critical 't' value = 2.0181

Therefore, given that the t test value is larger than the critical-t, we reject the null hypothesis, therefore, there is sufficient statistical evidence to suggest that the US presidents are taller than the average American male

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