A manufacturer considers his production process to be out of control when defects exceed 3%. In a random sample of 85 items, the defect rate is 5.9% but the manufacturer claims that this is only a sample fluctuation and production is not really out of control. How many populations? 01 02 What is the parameter? О Меan O standard Deviation O Variance O Difference between Means O Proportion

Random samples of size 46 are drawn from a population with mean 161.9 and standard deviation 16.1. Find the mean and the standard deviation of the sample mean. Round to four decimal places.Mean = Standard Deviation = Enter your answer as a number accurate to 4 decimal places.

Do men talk less than women? The table shows results from a study of the words spoken in a day by men and women. Assume that the two samples are randomly selected, independent, the population standard deviations are not know and not considered equal. At the 0.05 significance level, test the claim that the mean number of words spoken by men is less than the mean number of words spoken by women. Men Women n1 = 212 n2 = 218 xˉx̄1 = 15706.4 words xˉx̄2 = 15683.2 words s1 = 1595.44 words s2 = 1597.54 words What are the correct hypotheses? (Select the correct symbols and use decimal values not percentages.)H0: Select an answer μ₁ μ σ₁² x̄₂ p x̄₁ s₁² p̂₁ μ(men) p₂ p₁ μ₂  ? ≤ > ≥ = ≠ <  Select an answer μ₁ p₁ μ₂ x̄₂ σ₁² p̂₁ μ s₁² μ(women) p x̄₁ p₂ H1: Select an answer p̂₂ p s₂² σ₂² μ(men) μ μ₂ x̄₂ x̄₁ p₂ μ₁ p₁  ? < > = ≠ ≥ ≤  Select an answer μ₂ μ p₂ s₁² p₁ x̄₁ σ₁² p̂₁ p μ₁ x̄₂ μ(women)     Original Claim = Select an answer H₁ H₀ df =  Based on the hypotheses, find the…

Suppose the population has a normal distribution with a true mean of 100 and a standard deviationof 50. You are taking repeated samples of size 25. What is the expected mean of the samplingdistribution (? bar)?