What price do farmers get for their seedless watermelon crops? In a recent month, a simple random sample of 49 farming regions gave a sample mean of $12.15 per 100 pounds of seedless watermelon. Assumer that σ=$1.87per 100 pounds. Find a 90% confidence interval for the population mean price (per 100 pounds) that farmers in this region get for their seedless watermelon crop. (Round answers to two decimal places.) margin of error: $ (?) per 100 pounds lower limit: $ (?) per 100 pounds upper limit: $ (?) per 100 pounds What conditions were met for the above calculations to be valid? (Select all that apply.) large enough sample size n σ is known The price per 100 pound of seedless watermelon needs to be uniformly distributed The price per 100 pound of seedless watermelon needs to be normally distributed σ is unknown Find the sample size necessary for a 90% confidence level with an margin of error E=0.73 for the mean price per 100 pounds of seedless watermelon. (Increase to the next whole number.) ? If a farmer brings in 12 tons of seedless watermelon to a market, find a 90% confidence interval for the population mean cash value for 12 tons of seedless watermelon. Note: 1 ton = 2000 pounds. (Round your answers to two decimal places.) lower limit: $ ? upper limit: $ ?

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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What price do farmers get for their seedless watermelon crops? In a recent month, a simple random sample of 49 farming regions gave a sample mean of $12.15 per 100 pounds of seedless watermelon. Assumer that σ=$1.87per 100 pounds.

Find a 90% confidence interval for the population mean price (per 100 pounds) that farmers in this region get for their seedless watermelon crop. (Round answers to two decimal places.)

margin of error: $ (?) per 100 pounds

lower limit: $ (?) per 100 pounds

upper limit: $ (?) per 100 pounds

What conditions were met for the above calculations to be valid? (Select all that apply.)

large enough sample size n
σ is known
The price per 100 pound of seedless watermelon needs to be uniformly distributed
The price per 100 pound of seedless watermelon needs to be normally distributed
σ is unknown

Find the sample size necessary for a 90% confidence level with an margin of error E=0.73 for the mean price per 100 pounds of seedless watermelon. (Increase to the next whole number.) ?

If a farmer brings in 12 tons of seedless watermelon to a market, find a 90% confidence interval for the population mean cash value for 12 tons of seedless watermelon. Note: 1 ton = 2000 pounds. (Round your answers to two decimal places.)

lower limit: $ ?
upper limit: $ ?

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