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3 years ago

List the information as ordered pairs (weeks, total dollars saved).

Mathematics

1 answer:

morpeh [17]3 years ago

8 0

Marcus
Weeks Total Saved (x, y)
1 10 (1,10)
2 20   (2, 20)
3   30   (3 30)
4   40   (4, 40)

David
Weeks Total Saved (x, y)
1 15 (1, 15)
2 30   (2, 30)
3 45   (3, 45)
4 60   (4, 60)

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2 years ago

Assume that the national credit card interest rate is 12.83 percent. A study of 62 college students finds that their average int

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b) 95 percent confidence interval for this single-sample t test

[11.64, 16.36]

Step-by-step explanation:

Explanation:-

Given data a study of 62 college students finds that their average interest rate is 14 percent with a standard deviation of 9.3 percent.

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sample mean x⁻ = 14

sample standard deviation 'S' = 9.3

95 percent confidence interval for this single-sample t test

The values are $(x^{-} - t_{0.05} \frac{S}{\sqrt{n} } ,x^{-}+t_{0.05}\frac{S}{\sqrt{n} })$ the 95 percent confidence interval for the population mean 'μ'

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95 percent confidence interval for this single-sample t test

[11.64, 16.36]

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2 years ago

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x = -1

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