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2 years ago

What fraction of a gallon is a quart

Mathematics

1 answer:

cluponka [151]2 years ago

3 0

Answer:

1/4 gallon

Step-by-step explanation:

4 quarts = 1 gallon, so 1 quart = 1/4 gallon.

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A study was conducted to measure the effectiveness of hypnotism in reducing pain. The measurements are centimeters on a pain sca

blondinia [14]

The confidence interval for mean of the "before-after" differences is $\fbox{(-0.4037,1.8037)}$

Further explanation:

Find the difference between the before pain and the after pain.

Difference = before-after

Kindly refer to the Table for the difference of between the before and after pain.

Sum of difference = $5.6$

Total number of observation = $8$

Mean of difference = $0.7$

Sample standard deviation $s$ = $1.3201$

Level of significance = $5\%$

Formula for confidence interval = $\left( \bar{X} \pm t_{n-1, \frac{\alpha}{2}\%} \frac{s}{\sqrt{n}} \right)$

confidence interval = $\left( 0.7 \pm t_{8-1, \frac{5}{2}\%} \frac{1.3201}{\sqrt{8}} \right)$

confidence interval = $\left( 0.7 \pm t_{7, \frac{5}{2}\%} \frac{1.3201}{\sqrt{8}} \right)$

From the t-table.

The value of $t_{7, \frac{5}{2}\%$ = $2.365$

Confidence interval = $( 0.7 \pm 2.365}\times \frac{1.3201}{\sqrt{8}}) \right)$

Confidence interval = $\left( 0.7 - 2.365}\times \0.4667,0.7 + 2.365}\times \0.4667) \right$

Confidence interval = $(0.7-1.1037,0.7+1.1037)$

Confidence interval = $\fbox{(-0.4037,1.8037)}$

The $95\%$ confidence interval tells us about that $95\%$ chances of the true mean or population mean lies in the interval.

Yes, the hypnotism appear to be effective in reducing pain as confidence interval include includes the positive deviation from the mean.

Learn More:

1. Learn more about equation of circle brainly.com/question/1506955

2. Learn more about line segments brainly.com/question/909890

Answer Details:

Grade: College Statistics

Subject: Mathematics

Chapter: Confidence Interval

Keywords:

Probability, Statistics, Speed dating, Females rating, Confidence interval, t-test, Level of significance , Normal distribution, Central Limit Theorem, t-table, Population mean, Sample mean, Standard deviation, Symmetric, Variance.

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3 years ago

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What is the volume of a rectangular prism with a length of 12 feet, a width of 7 feet, and a height of 8 feet?

Bingel [31]

Answer:

672

Step-by-step explanation:

V=LWH

V=12*7*8

V=672

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3 years ago

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what would be the best statement about operator function of the bag class in section 3.1? group of answer choices that is an uni

ch4aika [34]

FIRST PLUS 13 THE ENGLISH SPANIDH

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1 year ago

(2x^4-3x^2+4x-9)÷(x+2)

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Working is attached: 2x^3 - 4x^2 + 5x - 6 remainder 3

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3 years ago

Plz help me<br><br>Use the table chart and find out what the alitude of 5,000 feet.

mash [69]

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