Question

For this problem, carry at least four digits after the decimal
in your calculations. Answers may vary slightly due to
rounding.

A random sample of 5454 physicians in Colorado showed that 3089
provided at least some charity care (i.e., treated poor people at
no cost).

(a) Let *p* represent the proportion of all Colorado
physicians who provide some charity care. Find a point estimate for
*p*. (Round your answer to four decimal places.)

(b) Find a 99% confidence interval for *p*. (Round your
answers to three decimal places.)

lower limit | |

upper limit |

Give a brief explanation of the meaning of your answer in the
context of this problem.

99% of all confidence intervals would include the true proportion of Colorado physicians providing at least some charity care.

99% of the confidence intervals created using this method would include the true proportion of Colorado physicians providing at least some charity care.

1% of the confidence intervals created using this method would include the true proportion of Colorado physicians providing at least some charity care.

1% of all confidence intervals would include the true proportion of Colorado physicians providing at least some charity care.

(c) Is the normal approximation to the binomial justified in this
problem? Explain.

Yes; *np* > 5 and *nq* > 5.

No; *np* < 5 and *nq* >
5.

Yes; *np* < 5 and *nq* < 5.

No; *np* > 5 and *nq* < 5.

Answer #1

For this problem, carry at least four digits after the decimal
in your calculations. Answers may vary slightly due to rounding. A
random sample of 5562 physicians in Colorado showed that 3116
provided at least some charity care (i.e., treated poor people at
no cost). (a) Let p represent the proportion of all Colorado
physicians who provide some charity care. Find a point estimate for
p. (Round your answer to four decimal places.) (b) Find a 99%
confidence interval for...

For this problem, carry at least four digits after the decimal
in your calculations. Answers may vary slightly due to
rounding.
A random sample of 5913 physicians in Colorado showed that 2981
provided at least some charity care (i.e., treated poor people at
no cost).
(a) Let p represent the proportion of all Colorado
physicians who provide some charity care. Find a point estimate for
p. (Round your answer to four decimal places.)
(b) Find a 99% confidence interval for...

For this problem, carry at least four digits after the decimal
in your calculations. Answers may vary slightly due to
rounding.
A random sample of 5751 physicians in Colorado showed that 3359
provided at least some charity care (i.e., treated poor people at
no cost).
(a) Let p represent the proportion of all Colorado
physicians who provide some charity care. Find a point estimate for
p. (Round your answer to four decimal places.)
(b) Find a 99% confidence interval for...

For this problem, carry at least four digits after the
decimal in your calculations. Answers may vary slightly due to
rounding.
A random sample of 5589 physicians in Colorado showed that 3143
provided at least some charity care (i.e., treated poor people at
no cost).
(a) Let p represent the proportion of all Colorado
physicians who provide some charity care. Find a point estimate for
p. (Round your answer to four decimal places.)
(b) Find a 99% confidence interval for...

For this problem, carry at least four digits after the decimal
in your calculations. Answers may vary slightly due to rounding. A
random sample of 5967 physicians in Colorado showed that 3170
provided at least some charity care (i.e., treated poor people at
no cost). (a) Let p represent the proportion of all Colorado
physicians who provide some charity care. Find a point estimate for
p. (Round your answer to four decimal places.) (b) Find a 99%
confidence interval for...

For this problem, carry at least four digits after the decimal
in your calculations. Answers may vary slightly due to rounding. A
random sample of 5508 physicians in Colorado showed that 3008
provided at least some charity care (i.e., treated poor people at
no cost). (a) Let p represent the proportion of all Colorado
physicians who provide some charity care. Find a point estimate for
p. (Round your answer to four decimal places.) (b) Find a 99%
confidence interval for...

For this problem, carry at least four digits after the decimal
in your calculations. Answers may vary slightly due to
rounding.
A random sample of 5913 physicians in Colorado showed that 3170
provided at least some charity care (i.e., treated poor people at
no cost).
(a) Let p represent the proportion of all Colorado
physicians who provide some charity care. Find a point estimate for
p. (Round your answer to four decimal places.)
(b) Find a 99% confidence interval for...

For this problem, carry at least four digits after the decimal
in your calculations. Answers may vary slightly due to
rounding.
A random sample of 5400 physicians in Colorado showed that 3305
provided at least some charity care (i.e., treated poor people at
no cost).
(a) Let p represent the proportion of all Colorado
physicians who provide some charity care. Find a point estimate for
p. (Round your answer to four decimal places.)
(b) Find a 99% confidence interval for...

For this problem, carry at least four digits after the decimal
in your calculations. Answers may vary slightly due to
rounding.
A random sample of 5427 physicians in Colorado showed that 3251
provided at least some charity care (i.e., treated poor people at
no cost).
(a) Let p represent the proportion of all Colorado
physicians who provide some charity care. Find a point estimate for
p. (Round your answer to four decimal places.)
(b) Find a 99% confidence interval for...

For this problem, carry at least four digits after the decimal
in your calculations. Answers may vary slightly due to
rounding.
A random sample of 5724 physicians in Colorado showed that 3197
provided at least some charity care (i.e., treated poor people at
no cost).
(a) Let p represent the proportion of all Colorado
physicians who provide some charity care. Find a point estimate for
p. (Round your answer to four decimal places.)
(b) Find a 99% confidence interval for...

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