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Image transcription textD2L McGraw-Hill Connect - 23M --Re x

M Question 5 - 10 - Quiz 4 (Week 1( X

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5

Out of a sample of 420 students, 265 indicated that they preferred chocolate ice cream to vanilla ice cream.

a. Estimate the value of the population proportion of those who preferred chocolate ice cream. (Round the final answer to 3 decimal

places.)

Estimated population proportion

X 01:49:14

b. Compute the standard error of the proportion. (Round the final answer to 4 decimal places.)

Standard error of the proportion

c. Determine a 90% confidence interval for the population proportion of those who preferred chocolate ice cream. (Round the final

answers to 3 decimal places.)

Confidence interval for the population proportion is between

and

d. Interpret your findings.

If 420 such intervals were determined, the population |(Click to select) | would be included in about

intervals.

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2023-07-20... Show moreImage transcription textD2L McGraw-Hill Connect - 23M --Re x

M Question 5 - 10 - Quiz 4 (Week 1( X

*Homework Help - Q&A from Onl x

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10 - Quiz 4 (Week 10)

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5

Out of a sample of 420 students, 265 indicated that they preferred chocolate ice cream to vanilla ice cream.

a. Estimate the value of the population proportion of those who preferred chocolate ice cream. (Round the final answer to 3 decimal

places.)

Estimated population proportion

X 01:48:47

b. Compute the standard error of the proportion. (Round the final answer to 4 decimal places.)

Standard error of the proportion

c. Determine a 90% confidence interval for the population proportion of those who preferred chocolate ice cream. (Round the final

answers to 3 decimal places.)

Confidence interval for the population proportion is between

and

d. Interpret your findings.

If 420 such intervals were determined, the population: (Click to select) v would be included in about

intervals.

(Click to select)

mean

proportion

Mc

Graw

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5 of 10

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Hill

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12:49 PM

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2023-07-20... Show moreImage transcription textD2L McGraw-Hill Connect - 23M --Re x

M Question 9 - 10 - Quiz 4 (Week 1( X

*Homework Help - Q&A from Onl x

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Personal Banking a.. Centennial email - L... C| Centennial College... G grammarly Free APA Citation G... Service Finder - Tak. The Phsycology of.. Virgin Plus - My Bill @ e-consular

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9

As part of an annual review of its accounts, a discount brokerage selects a random sample of 53 customers. Their accounts are

reviewed for total account valuation, which showed a mean of $36 000, with a sample standard deviation of $7 600. What is a 99%

confidence interval for the mean account valuation of the population of customers? (Round the final answers to the nearest whole

dollar.)

99% confidence interval for the mean account valuation is between $

and $

01:48:20

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2023-07-20... Show moreAs part of an annual review of its accounts, a discount brokerage selects a random sample of 53 customers. Their accounts are reviewed for total account valuation, which showed a mean of $36 000, with a sample standard deviation of $7 600. What is a 99% confidence interval for the mean account valuation of the population of customers?�Out of a sample of 420 students, 265 indicated that they preferred chocolate ice cream to vanilla ice cream.