In a pickle ~ There is a beautiful hill station in India called ‘Kurseong’. Besides breathtaking views, this town is also famous for its locally made spicy pickle called Tittira. A random group of tourists from different parts of the world were asked to taste Tittira and 19.61% of tourists said they liked it. The estimated standard error of the sample proportion is 0.0421.
A normal distribution can be used to model the sampling distribution of sample proportion. The pickle salespeople wish to construct a 95% confidence interval for the actual proportion of tourists who like Tittira.
What is the upper bound for the 95% confidence interval? Give your answer to 4 decimal places.
Your Answer:
Solution :
Given that,
Point estimate = sample proportion = = 0.1961
Z = 1.645
Margin of error = E = Z / 2 * (( * (1 - )) / n)
= 1.645 * 0.0421
= 0.0693
Upper bound = + E = 0.1961 - 0.0693 = 0.1268
Get Answers For Free
Most questions answered within 1 hours.