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nikdorinn [45]
2 years ago
14

What part of the bar model refers to the amount that Nora has to pay back in addition to the $500 that she borrowed?​

Mathematics
2 answers:
tester [92]2 years ago
5 0

Answer:

sorry dude i dont know

Step-by-step explanation:

mihalych1998 [28]2 years ago
3 0

Answer:

jefff 5675 4

Step-by-step explanation:

you have to add jeff by jeff

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Musya8 [376]

Answer:

A 95% confidence interval for the true mean minimum temperature that will damage an iPod is between 2.55°F and 7.45°F

Test statistic(Z) = 2.31

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Step-by-step explanation:

Step 1

Null hypothesis: The average damaging temperature of nine iPods is 5°F

Alternate hypothesis: The average damaging temperature of nine iPods differs from 5°F

Step 2

Mean=5°F, Sd=3, df=n-1=9-1=8

The t-value corresponding to 8 degrees of freedom and 95% confidence level (5% significance level) is 2.306

Confidence Interval(CI) = (mean + or - t×sd/√n)

CI = (5 + 2.306×3/√8) = 5 + 6.918/2.828= 5+2.45=7.45°F

CI = (5 - 2.306×3/√8) = 5-2.45 = 2.55°F

Z = (sample mean - population mean)/(sd÷√n) = (5-2.55)/(3÷√8) = 2.45/1.061 = 2.31

Step 3

Using the standard distribution table, the cumulative area to the left of Z = 2.31 is 0.9896

P-value = 1 - 0.9896 = 0.0104

Step 4

Conclusion: A 95% confidence interval for the true mean minimum temperature that will damage an iPod is between 2.55°F and 7.45°F

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Step-by-step explanation:

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Answer:

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Since its negative in the base B and C wont work. The negative in the exponent means the decimal moves left which exclude E.

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3 years ago
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