Question

A biotechnology firm is planning its investment strategy for future products and research labs. A poll found that 99% of a random sample of 1022 adults approved of attempts to clone a human. Use this information to complete parts a through e.

**a) Find the margin of error for this poll if we want
95% confidence in our estimate of the percent of adults who
approve of cloning humans.**

ME = ________________(round to three decimal places)

**b) Explain what the margin of errors means**

A. The pollsters are 95% confident that the true proportion of adults who approve of attempts to clone a human is within the margin of error of the estimated 9%.

B. The pollsters are 95% confident that the margin of error contains the true proportion of adults who approve of attempts to clone a human.

C. The margin of error is the width of the confidence interval that contains the true proportion of adults who approve of attempts to clone a human.

D. The margin of error is the value that should be subtracted from the 95% confidence level to obtain the pollsters' true confidence level.

**c) If we need to be 99% confident, will the margin of
error be larger or smaller**

A. A 99% confidence interval requires a smaller margin of error. Upper A wider interval leads to decreased confidence.

B. A 99% confidence interval requires a larger margin of error. In order to increase confidence, the interval must be narrower.

C. A 99% confidence interval requires a smaller margin of error. Upper A narrower interval leads to decreased confidence.

D. A 99% confidence interval requires a larger margin of error. In order to increase confidence, the interval must be wider.

****

**d) Find that margin of error.**

ME = ____________________ (round to three decimal places)

**e) In general, if all other aspects of the situation
remain the same, would smaller samples produce smaller or larger
margins of error?**

- Smaller samples produce larger margins of error
- Smaller samples produce smaller margins of error

Answer #1

A biotechnology firm is planning its investment strategy for
future products and research labs. A poll found that
5
%
of a random sample of
1047
adults approved of attempts to clone a human. Use this
information to complete parts a through e.
a) Find the margin of error for this poll if we want
99
%
confidence in our estimate of the percent of adults who approve
of cloning humans.
MEequals
0.017
(Round to three decimal places as needed.)...

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Complete parts a through e. a) Find the margin of error for this
poll if we want 99% confidence in our estimate of the percent of
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