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Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018

18th Edition

ISBN:9780079039897

Author:Carter

Publisher:Carter

Chapter10: Statistics

Section10.5: Comparing Sets Of Data

Problem 3BGP

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You want to obtain a sample to estimate a population proportion. Based on previous evidence, you believe
the population proportion is approximately p = 32%. You would like to be 99% confident that you
estimate is within 5% of the true population proportion. How large of a sample size is required?
n =
Do not round mid-calculation. However, use a critical value accurate to three decimal places.
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You want to obtain a sample to estimate a population proportion. Based on previous evidence, you believe the population proportion is approximately p^∗=85%. You would like to be 99% confident that your estimate is within 3% of the true population proportion. How large of a sample size is required? Do not round mid-calculation. However, use a critical value accurate to three decimal places.
Find the sample size required to estimate the percentage of statistics students who take their statistics course online. Assume that we want 95% confidence that proportion from the sample is within two percentage points of the true population percentage.
you want to obtain a sample to esimate a population proportion. Based on previous evidence, you believe the population standard devition is approximately 65.5. You would like to be 99% confident that your estimate is within 1 of the true population mean. How large of a sample size is required? Do not round mid calculation. Use a critical value rounded to three decimal places.
We want to obtain a sample to estimate a population mean. Based on previous evidence, researchers believe the population standard deviation is approximately σ=26.1. We would like to be 99% confident that the estimate is within 3 of the true population mean. How large of a sample size is required?
What sample size is needed to give a margin of error within ±2% in estimating a population proportion with 99% confidence? An initial small sample has p^=0.79. Round your answer up to the nearest integer. Sample size = Enter your answer in accordance to the question statement
you want to obtain a sample to estimate a population mean. based on previous evidence, you believe the population standard deviation is approximately 38%. you would like to be 99% confident that your estimate is with 3 of the true population mean. How large of a sample size is required?
The estimate of the population proportion should be within plus or minus .05, with a 95% level of confidence. The best estimate of the population proportion is 15. How large a sample is required? (Use z Distribution Table) ( Round z-value to 2 decimal places and round up your answer to the next whole number) What is the sample size?
We want to obtain a sample to estimate a population mean. Based on previous evidence, researchers believe the population standard deviation is approximately σ=1.8σ=1.8. We would like to be 99% confident that the esimate is within 0.3 of the true population mean. How large of a sample size is required?
Doritos chips are one of the most popular chips in the year 2020. Frito-Lay produces snack-sized bags of Doritos with 1.75-ounce bags. Unfortunately, Frito-Lay has received many complaints that the bags of chips lack the promised amount of chips. PepsiCo, the owner of Frito-Lay, decide to run an internal investigation of their Doritos chip production. They sample around 500 bags of chips to discover that they found an average of 1.59 ounces with a standard deviation of .12 ounces. Conduct a hypothesis test with an alpha-level of .05. Should they change their production of Doritos chips to match the 1.75 ounces on the bag?
Which statement is TRUE? Estimation is a procedure where a numerical value or values are assigned to the population parameter based on the information collected from a sample. Estimation is a procedure where numerical value or values are assigned to the sample statistic based on the information collected from a sample.

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