Question: What is the minimal sample size needed for a 99% confidence interval to have a maximal margin of error of 0.06: (a) If a preliminary

What is the minimal sample size needed for a 99% confidence interval to have a maximal margin of error of 0.06:
(a) If a preliminary estimate for p is 0.8?
(b) If there is no preliminary estimate for p?

Step by Step Solution

★★★★★

3.50 Rating (157 Votes )

There are 3 Steps involved in it

1 Expert Approved Answer

Step: 1 Unlock

a b 2 n... View full answer

Question Has Been Solved by an Expert!

Get step-by-step solutions from verified subject matter experts

Step: 2 Unlock

Step: 3 Unlock

Document Format (1 attachment)

785-M-S-P-E (1157).docx

120 KBs Word File

Students Have Also Explored These Related Statistics Questions!

Suppose x has a mound-shaped distribution with = 3. (a) Find the minimal sample size required so that for a 95% confidence interval, the maximal margin of error is E = 0.4. (b) Based on this sample...

Suppose x has a normal distribution with = 1.2. (a) Find the minimal sample size required so that for a 90% confidence interval, the maximal margin of error is E = 0.5. (b) Based on this sample size...

1. y + 2se (y) 2. se (p) 3. 2se (X-bar) 4. N (, 2 / n) 5. s / n 6. / n 7. 1 / (0.05) 2 8. [0,1] 9. p (1 p) / n 10. t 0.025 n1 (a) Sampling distribution of Xbar (b) Margin of error (c) 100%...

(a) Consider140binomial trials with44successes. Find a 90% confidence interval for the population proportion of successes p . (Round your answers to three decimal places.) lower limit upper limit (b)...

Basic Computation: Sample Size What is the minimal sample size needed for a 99% confidence interval to have a maximal margin of error of 0.06 (a) if a preliminary estimate for p is 0.8? (b) if there...

1. The method of tree ring dating gave the following years A.D. for an archaeological excavation site. Assume that the population of x values has an approximately normal distribution. 1222 1306 1187...

What is the minimal sample size needed for a 95% confidence interval to have a maximal margin of error of 0.1 in the following scenarios? ( enter a number. Round up the nearest whole number.) (a) a...

1. What price do farmers get for their watermelon crops? In the third week of July, a random sample of 43 farming regions gave a sample mean of x= $6.88 per 100 pounds of watermelon. Assume that is...

I dont understand any of these problems, please help. -/8.33 pointsBBBasicStat8Acc 8.3.002. In order to use a normal distribution to compute confidence intervals for p, what conditions on n.p and n.q...

8. In order to use a normal distribution to compute confidence intervals for p , what conditions on np and nq need to be satisfied? np 5 np > 5; nq > 5 np > 5; nq

Find the width of a photograph whose length is 8 inches and whose proportions are the same as a photograph that is 18 inches wide by 24 inches long. 6 inches 2 inches 144 inches 10(2)/(3) inches

a) What are the advantages of centralized backup compared with local backup? b) Define CDP. c) Why is CDP attractive? d) Why is it expensive? e) Why is backup over the Internet to a backup storage...

1.40 Fur seals on Saint George Island. Every year hundreds of thousands of northern fur seals return to their haul-out territory in the Pribilof Islands in Alaska to breed, give birth, and teach...

Brand names and generic products. (a) If a store always prices its generic store brand products at 90% of the brand name products prices, what would be the correlation between the prices of the brand...

Social Media: Dating and Relationships How often do we use social media to talk about our love life? In 2020, a study by the Pew Research Center released a report on data and relationships in the...

Fishing: Barbless Hooks In a combined study of northern pike, cutthroat trout, rainbow trout, and lake trout, it was found that 26 out of 855 fish died when they were caught using barbless hooks on...

Law Enforcement: Escaped Convicts Case studies showed that out of 10,351 convicts who escaped from U.S. prisons, only 7867 were recaptured (The Book of Odds by Shook and Shook, Signet). (a) Let p...

Need help with D Below: Consolidated Pasta is currently expected to pay annual dividends of $10 a share in perpetuity on the 2.7 million shares that are outstanding. Shareholders require a 10% rate...

At the time of her grandson's birth, a grandmother deposits $1000 in an account that pays 8% compounded monthly. What will be the value of the account at the child's twenty-first birthday, assuming...

QUESTIONS REIT Inc. paid a dividend of 52 per share per year on its common stock in past 10 years. And it is expected to continue paying two dollars a share long in future. From the info, one share...