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3 years ago

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The ratio of yellow roses to red roses in a garden is 47 to 96. Express this ratio in two different ways. A. 47⁄96; 96:47 B. 47:

96; 47⁄96 C. 47:96; 96⁄47 D. 96⁄47; 96:47

1 answer:

solong [7]3 years ago

4 0

The ratios 47/96 and 47:96 are appropriate here.

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a. We get 560 heads out of 1000 tosses.

We will use one sample proportion test

x = 560

n = 1000

$\widehat{p}=\frac{x}{n}$

$\widehat{p}=\frac{560}{1000}$

$\widehat{p}=0.56$

Formula of test statistic = $\frac{\widehat{p}-p}{\sqrt{\frac{p(1-p)}{n}}}$

= $\frac{0.56-0.5}{\sqrt{\frac{0.5(1-0.5)}{1000}}}$

= $3.794$

refer the z table for p value

p value = .000148

p value of part B is less than Part A because part B have 10 times the number the tosses.

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