Question

Assume that a sample is used to estimate a population proportion p. Find the 98% confidence interval for a sample of size 89 with 45 successes. Enter your answer as an open-interval (i.e., parentheses) using decimals (not percents) accurate to three decimal places.

98% C.I. =

Answer should be obtained without any preliminary rounding. However, the critical value may be rounded to 3 decimal places.

Answer #1

Assume that a sample is used to estimate a population proportion
p. Find the 98% confidence interval for a sample of size 108 with
25 successes. Enter your answer as an open-interval (i.e.,
parentheses) using decimals (not percents) accurate to three
decimal places. 98% C.I. = Answer should be obtained without any
preliminary rounding. However, the critical value may be rounded to
3 decimal places.

Assume that a sample is used to estimate a population proportion
p. Find the 98% confidence interval for a sample of size
245 with 162 successes. Enter your answer as an
open-interval (i.e., parentheses) using
decimals (not percents) accurate to three decimal places.
98% C.I. =
Answer should be obtained without any preliminary rounding.
However, the critical value may be rounded to 3 decimal places.

Assume that a sample is used to estimate a population proportion
p. Find the 90% confidence interval for a sample of size
248 with 84 successes. Enter your answer as an
open-interval (i.e., parentheses) using
decimals (not percents) accurate to three decimal places.
90% C.I. = _______________________
Answer should be obtained without any preliminary rounding.
However, the critical value may be rounded to 3 decimal places.

Assume that a sample is used to estimate a population proportion
p. Find the 99.5% confidence interval for a sample of size
248 with 196 successes. Enter your answer as an
open-interval (i.e., parentheses) using
decimals (not percents) accurate to three decimal places.
99.5% C.I. =
Answer should be obtained without any preliminary rounding.
However, the critical value may be rounded to 3 decimal places.

Assume that a sample is used to estimate a population proportion
p. Find the 80% confidence interval for a sample of size 276 with
43.8% successes. Enter your answer as an open-interval (i.e.,
parentheses) using decimals (not percents) accurate to three
decimal places. 80% C.I. = Answer should be obtained without any
preliminary rounding. However, the critical value may be rounded to
3 decimal places.

Assume that a sample is used to estimate a population proportion
p. Find the 99.5% confidence interval for a sample of size
99 with 26.3% successes. Enter your answer as an
open-interval (i.e., parentheses) using
decimals (not percents) accurate to three decimal places.
99.5% C.I. =
Answer should be obtained without any preliminary rounding.
However, the critical value may be rounded to 3 decimal places.

Assume that a sample is used to estimate a population proportion
p. Find the 90% confidence interval for a sample of size 247 with
146 successes. Enter your answer as an open-interval (i.e.,
parentheses) using decimals (not percents) accurate to three
decimal places.
90% C.I. =
Answer should be obtained without any preliminary rounding.
However, the critical value may be rounded to 3 decimal places.

Assume that a sample is used to estimate a population proportion
p. Find the 99% confidence interval for a sample of size 356 with
320 successes. Enter your answer as an open-interval (i.e.,
parentheses) using decimals (not percents) accurate to three
decimal places.
99% C.I. =
Answer should be obtained without any preliminary rounding.
However, the critical value may be rounded to 3 decimal places.

#7 Assume that a sample is used to estimate a population
proportion p. Find the 95% confidence interval for a sample of size
315 with 161 successes. Enter your answer as an open-interval
(i.e., parentheses) using decimals (not percents) accurate to three
decimal places.
95% C.I. =
Answer should be obtained without any preliminary rounding.
However, the critical value may be rounded to 3 decimal
places.

Assume that a sample is used to estimate a population proportion
p. Find the 98% confidence interval for a sample of size 199 with
52 successes. Enter your answer as an open-interval (i.e.,
parentheses) using decimals (not percents) accurate to three
decimal places.
C.I. =

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