In South Korea, “Jeju” is a famous holiday destination with breathtaking scenic views. A travel agent...

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In South Korea, “Jeju” is a famous holiday destination withbreathtaking scenic views. A travel agent in Jeju wants to know thesatisfaction levels of tourists who visit the island. The travelagent surveyed 45 tourists at random and constructed a 95%confidence interval for the proportion of tourists who wereextremely satisfied with their Jeju visit to be (0.5289,0.8044).

Which of the following statements are true? Select all the thatapply.

Question 5 options:

A 99% confidence interval calculated using the same data willinclude more plausible values for the actual populationproportion.

If the sample size had been double the sample size in thescenario above, then the 95% confidence interval would be half aswide as the one stated above.

If a different sample of the same size were to be selected, thenthere is a 95% chance that the new sample proportion will lieinside the confidence interval stated above.

If we took several samples of the same size as the scenariogiven above and constructed 95% confidence intervals for populationproportion, then it is reasonable to expect 95% of these confidenceintervals to contain the actual population proportion.

A 90% confidence interval for the population proportioncalculated using the same data will be wider than the intervalstated above.

If a different sample of the same size were to be selected and a95% confidence interval constructed, then there is a 95% chancethat the actual population proportion will lie inside the newconfidence interval.

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Since the 99 confidence interval will be wider than 95confidence intervalA 99 confidence intervalcalculated using the same data will include more plausible valuesfor the actual population proportionIf the sample size had been double the sample size the    See Answer
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