ants to know how many times per hour a certain strand of bacteria reproduces. He wants to construct the 95% confidence interval with a maximum error of 0.19 reproductions per hour. Assuming that the mean is 6.4 reproductions and the standard deviation is known to be 1.8 what is the minimum sample size required for the estimate? Round your answer up to the

Q: We want to obtain a sample to estimate a population mean. Based on previous evidence, researchers…

A: The random variable X is normally distributed. The population standard deviation is 70.7. The margin…

Q: You plan to take a random sample from a population of 500 items and build a 95% confidence interval…

A: We have given that Standard deviation(σ) = 100Margin of error (E) = 5Significance level (α) = 1 -…

Q: You want to obtain a sample to estimate a population mean. based on previous evidence, you believe…

A: Answer: From the given data, Margin of error (ME) = 1.6 Standard deviation(σ) = 19.7 95% confidence…

Q: We want to obtain a sample to estimate a population mean. Based on previous evidence, researchers…

A:

Q: You want to obtain a sample to estimate a population mean. Based on previous evidence, you believe…

A: We have given that  Standard deviation=sigma =70.9 , margin of error =E=1 , level of significance…

Q: A. Estimate the population mean with 95% confidence. Confidence Interval = B. Estimate the…

A:

Q: You want to obtain a sample to estimate a population mean. based on previ evidence, you believe the…

A:

Q: We want to obtain a sample to estimate a population mean. Based on previous evidence, researchers…

A:

Q: You want to obtain a sample to estimate a population mean. Based on previous evidence, you believe…

A:

Q: You want to obtain a sample to estimate a population mean. Based on previous evidence, you believe…

A: Given that σ=53.8 Confidence level=90% Significance level=10% Margin of error(ME)=10 The z critical…

Q: Find a 95% confidence interval for a mean, µ, where n = 324, x̄ = 2.7, s = .91, and se = .06.

A: Given: n = 324, x̄ = 2.7, s = .91, se = .06.

Q: The foot lengths of a random sample of 53 men had a mean of 27 cm and a standard deviation of 2 cm,…

A: Solution-:   Given: n1=53 (men), n2=100 (women), x1¯=27, x2¯=23.5, s1=2, s2=2, α=0.05 We want to…

Q: Determine the 90​% confidence interval estimate for the population mean of a normal distribution…

A:

Q: We want to obtain a sample to estimate a population mean. Based on previous evidence, researchers…

A: Given,margin of error(E)=0.5population standard deviation(σ)=30.6

Q: You want to obtain a sample to estimate a population mean. Based on previous evidence, you believe…

A: Determine the sample size n needed. Use EXCEL Procedure for finding the critical value of z.…

Q: We want to obtain a sample to estimate a population mean. Based on previous evidence, researchers…

A: given data σ = 50.798% ci for μ.E = 5n = ?

Q: A statistics practitioner took a random sample of 45 observations from a population whose standard…

A: Confidence interval is a part of interval estimation, which is used to estimate the unknown value of…

Q: You want to obtain a sample to estimate a population mean. Based on previous evidence, you believe…

A:

Q: you want to obtain a sample to estimate a population mean. based on previous evidence, you believe…

A:

Q: The population distribution is normally distributed and has a mean of 13.6 and a standard deviation…

A: Normal distribution is a continuous distribution which has many real life applications. Normal curve…

Q: A researcher is trying to estimate the population mean for a certain set of data. The sample mean is…

A:

Q: You want to obtain a sample to estimate a population mean age. Based on previous evidence, you…

A: Given data,σ=2.2E=0.75z-value at 95% confidence is Zc=1.96n=?

Q: A research scientist wants to know how many times per hour a certain strand of bacteria reproduces.…

A: The confidence level is .The margin of error is .The mean is 9.8.The standard deviation is .

Q: You want to obtain a sample to estimate a population mean. Based on previous evidence, you believe…

A:

Q: A researcher tries to estimate the population mean by using sufficiently large sample. The…

A: The probability is 0.99.

Q: How large of a sample size is required?

A: Based on previous evidence, you believe the population standard deviation is approximately σ=30.7.…

Q: We want to obtain a sample to estimate a population mean. Based on previous evidence, researchers…

A: Formula for the sample size needed to estimate a population mean is

Q: You want to obtain a sample to estimate a population mean. Based on previous evidence, you believe…

A: σ =   27.990% confidence interval for μ.E = 1n = ?

Q: A population has a mean μ=79 and a standard deviation σ=18. Find the mean and standard deviation of…

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Q: You want to obtain a sample to estimate a population mean. Based on previous evidence, you believe…

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Q: Solve this for me

A: Given:sample size n=35sample mean x̄=1.41sample standard deviation s=1.19population standard…

Q: You want to obtain a sample to estimate a population mean. Based on previous evidence, you believe…

A: Population Standard deviation = 58.5Confidence interval = 99%Significance level(α) = 1- 0.99 =…

Q: Bob draws a simple random sample from a massive original population. The sample size is n=41 and the…

A:

Q: ou want to obtain a sample to estimate a population mean. Based on previous evidence, you believe…

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Q: Assume that a sample is used to estimate a population mean μμ. Find the 95% confidence interval for…

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Q: A statistics practitioner took a random sample of 57 observations from a population whose standard…

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Q: A research scientist wants to know how many times per hour a certain strand of bacteria reproduces.…

A:

Ratios

A ratio is a comparison between two numbers of the same kind. It represents how many times one number contains another. It also represents how small or large one number is compared to the other.

Trigonometric Ratios

Trigonometric ratios give values of trigonometric functions. It always deals with triangles that have one angle measuring 90 degrees. These triangles are right-angled. We take the ratio of sides of these triangles.