The minimum sample size needed to construct a 95% confidence interval for u, with error not exceeding 2. if the sample is to be drawn from a normal population with variance 256 is O a. 210 O b. 246 O c. 245 O d. 21 O e. 211

Q: Consider the following results for two independent random samples taken from two populations.…

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Q: The minimum sample size needed to construct a 95% confidence interval for µ, with error not…

A: GivenMargin of error(E)=1.5variance(σ2)=225standard deviation(σ)=225=15confidence level=95%

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Q: The minimum sample size needed to construct a 95% confidence interval for u, with error not…

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A: Given : Population 1 :   n= 6,mean=17.62,s.d=3.25 Population 2 :  n=17,mean=15.57,s.d=2.47

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Q: Find the critical valuetc for the confidence level c=0.98 and sample size n=18.   q2

A: Find the critical valuetc for the confidence level c=0.98 and sample size n=18.

Q: The minimum sample size needed to construct a 95% confidence interval for u, with error not…

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Q: Consider the following data for two independent random samples taken from two normal populations. 11…

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Q: Determine the point estimate of the population mean and margin of error for the confidence interval…

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Q: Consider the following results for two independent random samples taken from two populations.…

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A: The (1-α) confidence interval for μ is, CI=x¯±zσnHere,L=x¯-zσnU=x¯+zσn

Q: 1. Determine the value of Zaz in constructing the given confidence interval for the population mean…

A: We use standard normal z table to find the required solution.