Homework Help is Here – Start Your Trial Now!
Math
Statistics
solve question (a) with explanation i'll give multiple upvote

solve question (a) with explanation i'll give multiple upvote

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 13PPS
See similar textbooks
icon
Related questions
Question
solve question (a) with explanation i'll give multiple upvote
1. In a study of the relationship between rainfall totals (x in cm) and average streamflow in a river the next day (y in m³/s), a sample of size 10 was analyzed. Results are summarized as follows: Average streamflow (m³/s) Rainfall total (cm) Mean 4 88 Standard deviation 1.88 7.19 Using the raw data, the following is also calculated: Σχι 40, Σνι - 880, Σχ192, Σν 77906, Σχινι 3632 Sxx = 32 Syy = = 466 Sxy = 112 a) Can rainfall total be used as a predictor for the average stream flow of this river? Show all your calculations (including prediction) and explain your conclusion. b) If the average streamflow exceeds 115 m/s, the overflow of the river causes flooding in nearby houses. If the total rainfall reaches 10 cm in a spring day, can you state that river- view houses will be flooded the next day, with 95% confidence? c) What are different statistical analyses that you can do to ensure this prediction line is reliable? Just name them, no explanation needed.
Transcribed Image Text:1. In a study of the relationship between rainfall totals (x in cm) and average streamflow in a river the next day (y in m³/s), a sample of size 10 was analyzed. Results are summarized as follows: Average streamflow (m³/s) Rainfall total (cm) Mean 4 88 Standard deviation 1.88 7.19 Using the raw data, the following is also calculated: Σχι 40, Σνι - 880, Σχ192, Σν 77906, Σχινι 3632 Sxx = 32 Syy = = 466 Sxy = 112 a) Can rainfall total be used as a predictor for the average stream flow of this river? Show all your calculations (including prediction) and explain your conclusion. b) If the average streamflow exceeds 115 m/s, the overflow of the river causes flooding in nearby houses. If the total rainfall reaches 10 cm in a spring day, can you state that river- view houses will be flooded the next day, with 95% confidence? c) What are different statistical analyses that you can do to ensure this prediction line is reliable? Just name them, no explanation needed.
Expert Solution
steps

Step by step

Solved in 3 steps

SEE SOLUTIONCheck out a sample Q&A here
Blurred answer
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