Homework Help is Here – Start Your Trial Now!
Math
Statistics
Dentists believe that a diet low in sugary foods can reduce the number of cavities in children. Nineteen children whose diets are believed to be high in sugar are examined and the mean number of cavities is 2.2 with a standard deviation of 0.3. Ten children whose diets are believed to be low in sugar are examined and the mean number of cavities is 3.5 with a standard deviation of 1.4. Construct a 99 % confidence interval for the true difference between the mean numbers of cavities for children whose diets are high in sugar and those whose diets are low in sugar. Assume that the variances of the two populations are the same. Let Population 1 be children whose diets are believed to be high in sugar and Population 2 be children whose diets are believed to be low in sugar. Round the endpoints of the interval to one decimal place, if necessary. Answer 画 Tables 国 Keypad Keyboard Shortcuts Lower Endpoint =

Dentists believe that a diet low in sugary foods can reduce the number of cavities in children. Nineteen children whose diets are believed to be high in sugar are examined and the mean number of cavities is 2.2 with a standard deviation of 0.3. Ten children whose diets are believed to be low in sugar are examined and the mean number of cavities is 3.5 with a standard deviation of 1.4. Construct a 99 % confidence interval for the true difference between the mean numbers of cavities for children whose diets are high in sugar and those whose diets are low in sugar. Assume that the variances of the two populations are the same. Let Population 1 be children whose diets are believed to be high in sugar and Population 2 be children whose diets are believed to be low in sugar. Round the endpoints of the interval to one decimal place, if necessary. Answer 画 Tables 国 Keypad Keyboard Shortcuts Lower Endpoint =

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.5: Comparing Sets Of Data
Problem 1GP
See similar textbooks
icon
Related questions
Topic Video
Question
Dentists believe that a diet low in sugary foods can reduce the number of cavities in children. Nineteen children whose diets are believed to be high in sugar are examined and the mean number of cavities is 2.2 with a standard deviation of 0.3. Ten children whose diets are believed to be low in sugar are examined and the mean number of cavities is 3.5 with a standard deviation of 1.4. Construct a 99 % confidence interval for the true difference between the mean numbers of cavities for children whose diets are high in sugar and those whose diets are low in sugar. Assume that the variances of the two populations are the same. Let Population 1 be children whose diets are believed to be high in sugar and Population 2 be children whose diets are believed to be low in sugar. Round the endpoints of the interval to one decimal place, if necessary. Answer 曲 Tables Кeypad Keyboard Shortcuts Lower Endpoint Upper Endpoint =
Transcribed Image Text:Dentists believe that a diet low in sugary foods can reduce the number of cavities in children. Nineteen children whose diets are believed to be high in sugar are examined and the mean number of cavities is 2.2 with a standard deviation of 0.3. Ten children whose diets are believed to be low in sugar are examined and the mean number of cavities is 3.5 with a standard deviation of 1.4. Construct a 99 % confidence interval for the true difference between the mean numbers of cavities for children whose diets are high in sugar and those whose diets are low in sugar. Assume that the variances of the two populations are the same. Let Population 1 be children whose diets are believed to be high in sugar and Population 2 be children whose diets are believed to be low in sugar. Round the endpoints of the interval to one decimal place, if necessary. Answer 曲 Tables Кeypad Keyboard Shortcuts Lower Endpoint Upper Endpoint =
Expert Solution
trending now

Trending now

This is a popular solution!

steps

Step by step

Solved in 2 steps

SEE SOLUTIONCheck out a sample Q&A here
Blurred answer
Knowledge Booster
Hypothesis Tests and Confidence Intervals for Means
Learn more about
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.
Recommended textbooks for you
Glencoe Algebra 1, Student Edition, 9780079039897…
Glencoe Algebra 1, Student Edition, 9780079039897…
Algebra
ISBN:
9780079039897
Author:
Carter
Publisher:
McGraw Hill
SEE MORE TEXTBOOKS