A random sample of 35 scores from the Gen Math examination of ABM learners is taken and gives a sample mean of 63. At a 90% level of confidence, the interval estimate of the population mean is between 62.18 and 66.82. What is the length of the confidence interval in the given problem?

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Q: Find the critical t value to use in making a 98% confidence interval for a mean if the sample size…

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Q: Find the critical t value to use in making a 90% confidence interval for a mean if the sample size…

A: Given, confidence level = 90.0 Need to find Critical value t

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Q: determine the 95% confidence interval or range in an observed score of 86 if SD is 5.8 and the…

A: 95% Confidence interval is 79.4934 and 92.5066 Explanation: Data given, r=0.82 X=86 SD=5.8 Standard…

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A: Given,mean(x)=90standard deviation(s)=7sample size(n)=64α=1-0.92=0.08α2 =0.04degrees of freedom…

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Q: A survey of 30 adults found that the mean age of a person's vehicle is 3.6 years. Assuming the…

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