Question

A genetic experiment with peas resulted in one sample of offspring that consisted of

418418

green peas and

154154

yellow peas.**a.** Construct a

9595%

confidence interval to estimate of the percentage of yellow peas.

**b.** It was expected that 25% of the offspring
peas would be yellow. Given that the percentage of offspring yellow
peas is not 25%, do the results contradict expectations?

**a.** Construct a

95%

confidence interval. Express the percentages in decimal form.

Answer #1

a)

Sample proportion = 154 / (154 + 418) = 154 / 572 = 0.269

95% confidence interval for p is

- Z * sqrt( ( 1 - ) / n) < p < + Z * sqrt( ( 1 - ) / n)

0.269 - 1.96 * sqrt( 0.269 * 0.731 / 572 ) < p < 0.269 + 1.96 * sqrt( 0.269 * 0.731 / 572 )

0.233 < p < 0.305

95% CI is **( 0.233 , 0.305 )**

b)

Since claimed proportion 0.25 lies in confidence interval calculated in part a) , we do not have

sufficient evidence to reject the null hypothesis.

The result does not contradict the expectation.

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b. It was expected that 25% of the offspring
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offspring that consisted of 418 green peas and 163 yellow peas. a.
Construct a 95% confidence interval to estimate of the percentage
of yellow peas. b. It was expected that 25% of the offspring peas
would be yellow. Given that the percentage of offspring yellow peas
is not 25%, do the results contradict expectations?

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offspring that consisted of 405 green peas and 155 yellow peas. a.
Construct a 95 % confidence interval to estimate of the percentage
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A genetic experiment with peas resulted in one sample of
offspring that consisted of
436
green peas and
151
yellow peas.
A. Construct a
90%
confidence interval to estimate of the percentage of yellow
peas.
B. It was expected that 25% of the offspring peas would be
yellow. Given that the percentage of offspring yellow peas is not
25%, do the results contradict expectations?
A. Construct a
90%
confidence interval. Express the percentages in decimal
form.
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14.
A genetic experiment with peas resulted in one sample of
offspring that consisted of 433 green peas and 153 yellow peas. a.
Construct a 95% confidence interval to estimate of the percentage
of yellow peas. b. It was expected that 25% of the offspring peas
would be yellow. Given that the percentage of offspring yellow peas
is not 25%, do the results contradict expectations?
_____________________
a. Construct a 95% confidence interval. Express the percentages
in decimal form.
<p< (Round...

A genetic experiment with peas resulted in one sample of
offspring that consisted of 438 green peas and 169 yellow peas. a.
Construct a 90 % confidence interval to estimate of the percentage
of yellow peas. b. It was expected that 25% of the offspring peas
would be yellow. Given that the percentage of offspring yellow peas
is not 25%, do the results contradict expectations?

A genetic experiment with peas resulted in one sample of
offspring that consisted of
447
green peas and
153
yellow peas.
a. Construct a
90%
confidence interval to estimate of the percentage of yellow
peas.
b. It was expected that 25% of the offspring peas would be
yellow. Given that the percentage of offspring yellow peas is not
25%, do the results contradict expectations?

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