IHP340 6-3 Wiley Plus Homework 2025 NEW UPDATE
Southern New Hampshire University
Question 1 of 14
Consider taking samples of size 100 from a population with
proportion 0.33. Find the mean of the distribution of sample
proportions.
0.33
Question 2 of 14
Fluoride and IQ Exercise 2.250 introduces a study examining the association
between fluoride exposure in pregnant women and subsequent IQ scores of
their children.
Fluoride is often added to drinking water to prevent tooth decay, but the
study found that higher maternal fluoride levels were associated with lower
IQ scores in children. The regression analysis was done separately for boys
and girls, and in each case, the article reports both the 95% confidence
interval for the slope and the p-value for testing the slope. The two p-values
are 0.33 and 0.02. Match the p-values with the confidence intervals:
(a) 95% CI for slope for boys: -8.38 to -0.60 0.02
(b) 95% CI for slope for girls: -2.51 to 7.36 0.33
Question 3 of 14
Alkalinity in Lakes as a Predictor of Mercury in Fish
The FloridaLakes dataset includes data on 53 lakes in Florida. A scatterplot
of Alkalinity (concentration of calcium carbonate in mg/L) and AvgMercury
(average mercury level for a sample of fish from each lake) is shown below.
This study source was downloaded by 100000897439502 from CourseHero.com on 06-29-2025 10:41:28 GMT -05:00
https://www.coursehero.com/file/250488964/IHP340-6-3-Wiley-Plus-Homeworkdocx/
, Judging from the scatterplot, should we have any concerns about fitting this
data to a linear model?
Yes
Module 6 Homework
Question 4 of 14
1..5
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Current Attempt in Progress
Use the following ANOVA table for regression to answer the questions.
Analysis of Variance
Source DF SS MS F P
Regression 1.8
1 294.3 294.3
5 0.176
Residual 17
Error
4 27683.4 159.1
Total 17
5 27977.7
Part 1
Give the F-statistic and p-value.
1.85
0.176
This study source was downloaded by 100000897439502 from CourseHero.com on 06-29-2025 10:41:28 GMT -05:00
https://www.coursehero.com/file/250488964/IHP340-6-3-Wiley-Plus-Homeworkdocx/
Southern New Hampshire University
Question 1 of 14
Consider taking samples of size 100 from a population with
proportion 0.33. Find the mean of the distribution of sample
proportions.
0.33
Question 2 of 14
Fluoride and IQ Exercise 2.250 introduces a study examining the association
between fluoride exposure in pregnant women and subsequent IQ scores of
their children.
Fluoride is often added to drinking water to prevent tooth decay, but the
study found that higher maternal fluoride levels were associated with lower
IQ scores in children. The regression analysis was done separately for boys
and girls, and in each case, the article reports both the 95% confidence
interval for the slope and the p-value for testing the slope. The two p-values
are 0.33 and 0.02. Match the p-values with the confidence intervals:
(a) 95% CI for slope for boys: -8.38 to -0.60 0.02
(b) 95% CI for slope for girls: -2.51 to 7.36 0.33
Question 3 of 14
Alkalinity in Lakes as a Predictor of Mercury in Fish
The FloridaLakes dataset includes data on 53 lakes in Florida. A scatterplot
of Alkalinity (concentration of calcium carbonate in mg/L) and AvgMercury
(average mercury level for a sample of fish from each lake) is shown below.
This study source was downloaded by 100000897439502 from CourseHero.com on 06-29-2025 10:41:28 GMT -05:00
https://www.coursehero.com/file/250488964/IHP340-6-3-Wiley-Plus-Homeworkdocx/
, Judging from the scatterplot, should we have any concerns about fitting this
data to a linear model?
Yes
Module 6 Homework
Question 4 of 14
1..5
View Policies
Show Attempt History
Current Attempt in Progress
Use the following ANOVA table for regression to answer the questions.
Analysis of Variance
Source DF SS MS F P
Regression 1.8
1 294.3 294.3
5 0.176
Residual 17
Error
4 27683.4 159.1
Total 17
5 27977.7
Part 1
Give the F-statistic and p-value.
1.85
0.176
This study source was downloaded by 100000897439502 from CourseHero.com on 06-29-2025 10:41:28 GMT -05:00
https://www.coursehero.com/file/250488964/IHP340-6-3-Wiley-Plus-Homeworkdocx/
