In two common species of flowers, a and b, the proportions of flowers that are blue are pa and pb , respectively. Suppose that independent random samples of 50 species-a flowers and 100 species-b flowers are selected. Let pˆa be the sample proportion of blue species-a flowers and pˆb be the sample proportion of blue species-b flowers. What is the mean of the sampling distribution of pˆa−pˆb ?.

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Answer 1

The mean of the sampling distribution is [tex]{p_{a}}-p__b}[/tex]

The mean of a sampling distribution is the population mean from which values are sampled. For a population of mean μ, the mean of the sampling distribution is [tex]\mathbf{ \mu_x}[/tex]

[tex]\mathbf{\mu_x = \mu}[/tex]

From the parameters given:

Suppose that independent random samples of 50 species-a flowersand 100 species-b flowers are selected

where;

[tex]\mathbf{\hat p_a}[/tex] = sample proportion of blue specie-a[tex]\mathbf{\hat p_b}[/tex] = sample proprotion of blue specie-b

The mean of the sampling distribution of [tex]\mathbf{\hat p_a -\hat p_b}[/tex] is [tex]{p_{a}}-p__b}[/tex]

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Which of these is an agent of chemical weathering?.

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Which of these is an agent of chemical weathering?

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Answer:

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What was the significance of the 1876 election brainly.

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According to the lesson which of the following is a type of promotion.

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Answer:

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I took the test and got it correct.

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Character vs. Self Conflict:

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The answer is simply A

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Answer: Nene's value to them soars because of her homemaking skills.

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Took the test

Answer:

Nene's value to them soars because of her homemaking skills.

The women of Nnaemeka's tribe treat Nene differently because she is an outsider.

Explanation:

took test

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Answer:

Explanation:

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Answer:

Explanation:Prospecting or qualifying

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