Given are five observations collected in a regression study on two variables. X; Yi 6 13 20 9 19 7 26 21 Develop the 95% confidence and prediction intervals when x = 10. (Round your answers to two decimal places.) confidence interval -1.04 X to 2.44 X prediction interval -11.02 X to 29.82 X

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Part 1 of 3  A researcher was investigating the size of math departments in Texas colleges. She believed the population standard deviation was 1.9. A sample of 42 colleges found their mean was 12.5.   Find the 3-decimal small value of the 95% confidence interval of the mean.     Part 2 of 3: Find the 3-decimal large value of the 95% confidence interval of the mean.     Part 3 of 3: Find the 3-decimal margin of error

5.1 & 6.2 Question 13, 6.1.34 Part 1 of 2 Use the confidence interval to find the estimated margin of error. Then find the sample mean. HW Score: 44.29%, 15.5 of 35 O Points: 0 of 1 A store manager reports a confidence interval of (44.8,83.8) when estimating the mean price (in dollars) for the population of textbooks. The estimated margin of error is (Type an integer or a decimal.) Clear all his View an example Get more help - Q Search

Question 3 You measure 24 textbooks' weights, and find they have a mean weight of 35 ounces. Assume the population standard deviation is 9 ounces. Based on this, construct a 95% confidence interval for the true population mean textbook weight. Give your answers as decimals, to two places Calculator > <μ<

Step 2 (b) Which of the two intervals conveys more precise information about the value of the population proportion? Recall that a smaller standard error of results in a narrower confidence interval. A narrower confidence interval is then more precise. The width of Interval 1, (0.27, 0.35), is 0.35 0.27 = and the width of Interval 2, (0.30, 0.34), is 0.34 -0.30 = Submit Skip (you cannot come back) Therefore, --Select--- is the narrower and more precise interval.

Also included in question find estimated variance of errors, estimated variance of slope, and 90% and 95% confidence intervals for slope. Thank you so much

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