K Find the critical value Zα/2 that corresponds to the confidence level 98%. Za/2 = (Round to two decimal places as needed.)

Find the critical value Za that corresponds to the confidence level 84% Answer: Probability ( if use for Excel or TI 84 )/ area ( if using table ) ( three decimal place) Z a = ( two decimal places) ing

Score: 30.8/100 7/16 answered Question 6 く> In a recent poll, 590 people were asked if they liked dogs, and 70% said they did. Find the Margin of Error for this poll, at the 90% confidence level. Give your answer to four decimal places if possible. Submit Question MacBook

Construct a confidence interval for p1- P2 at the given level of confidence. x1 = 26, n1 = 270, x2 = 38, n2 = 296, 99% confidence The researchers are 1% confident the difference between the two population proportions, p1 - P2, is between and (Use ascending order. Type an integer or decimal rounded to three decimal places as needed.)

Find the critical t value that corresponds to 95% confidence, Assume 29 degrees of freedom (two tailed) Round to 3 decimals

Use the sample information x⎯⎯x¯ = 42, σ = 7, n = 16 to calculate the following confidence intervals for μ assuming the sample is from a normal population. (a) 90 percent confidence. (Round your answers to 4 decimal places.)       (b) 95 percent confidence. (Round your answers to 4 decimal places.)         (c) 99 percent confidence. (Round your answers to 4 decimal places.)         (d) Describe how the intervals change as you increase the confidence level.multiple choice The interval gets narrower as the confidence level increases. The interval gets wider as the confidence level decreases. The interval gets wider as the confidence level increases. The interval stays the same as the confidence level increases.