Elementary Statistics (13th Edition)
13th Edition
ISBN: 9780134462455
Author: Mario F. Triola
Publisher: PEARSON
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Textbook Question
Chapter 10.3, Problem 2BSC
Prediction Interval Using the heights and weights described in Exercise 1, a height of 180 cm is used to find that the predicted weight is 91.3 kg, and the 95% prediction interval is (59.0 kg, 123.6 kg). Write a statement that interprets that prediction interval. What is the major advantage of using a prediction interval instead of simply using the predicted weight of 91.3 kg? Why is the terminology of prediction interval used instead of confidence interval?
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(b) What is the predicted value of the response variable for this value of the explanatory variable?Enter the exact answer.The predicted value is=
Fill in the table using data from your random sample of home prices. To insert an equation,
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sample size
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95% Confidence Interval
95% Confidence Interval
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Chapter 10 Solutions
Elementary Statistics (13th Edition)
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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, statistics and related others by exploring similar questions and additional content below.Similar questions
- Find the confidence intervalarrow_forwardPrediction Interval Using the heights and weights described in Exercise 1, a height of 180 cm is used to find that the predicted weight is 91.3 kg, and the 95% prediction interval is (59.0 kg, 123.6 kg). Write a statement that interprets that prediction interval. What is the major advantage of using a prediction interval instead of simply using the predicted weight of 91.3 kg? Why is the terminology of prediction interval used instead of confidence interval?arrow_forwardUse a t table to find the value of t to use in a confidence interval?arrow_forward
- Use the figure below to answer the questions that follow. The figure shows the results of a recent Marist poll asking about President Biden’s approval rating. The range of the confidence interval for these data points is 4.3%. For example, the first row shows that among all adults in the nations, 42% approve of Biden’s work. This means that confidence intervals for this result would be approximately (38, 46). ** see image attached The figure shows that people with less income are more likely to approve of Biden’s work than people with higher income. Is this result statistically significant given the width of the confidence interval? Explain. 2. The figure shows that people with more education are more likely to approve of Biden’s work than people with less education. Is this result statistically significant given the width of the confidence interval? Explain.arrow_forwardUse the confidence interval to find the estimated margin of error. Then find the sample mean. A biologist reports a confidence interval (1,7,2,9 ) of when estimating the mean height (in centimeters) of a sample of seedlings. The estimated margin of error is nothing.arrow_forwardconstruct a confidence interval for this data. You should construct a 95% confidence interval for this data. How you do this will depend on whether your data is summarized using a mean or proportions. If you have categorical data, you will have to pick one of the categories and focus on a confidence interval for the proportion for that category, and you only need to do one for that one category. Please show the parts of your equation (point estimate, Z or T, and standard error) in addition to your final result.arrow_forward
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