1. A sample of size n = 121 produced the sample mean of = 30. Assuming the population standard deviation o = 4, compute a 95% confidence interval for the population mean

Calculus For The Life Sciences
2nd Edition
ISBN:9780321964038
Author:GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.
Publisher:GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.
Chapter1: Functions
Section1.2: The Least Square Line
Problem 7E
icon
Related questions
Topic Video
Question
100%
I want solutions, answers, statistics in business
1. A sample of size n =
121 produced the sample mean of =
30. Assuming the population standard deviation o
4,
compute a 95% confidence interval for the population mean
u.
2.
Given
the
following
data:
6.
-3
3
5
3
4
Construct a 90 % confidence interval estimate for the
population mean.
3. A random sample of 750 people shows that 150 are
left-handed. Construct a 99% confidence interval for
the true proportion of left-handers.
4. How large a sample would be necessary to estimate
the true proportion defective in a large population
within 5%, with 95% confidence? (Assume a pilot
sample yields p = 0.5)
%3D
5. Write a short note on point estimate and confidence interval
estimate.
Transcribed Image Text:1. A sample of size n = 121 produced the sample mean of = 30. Assuming the population standard deviation o 4, compute a 95% confidence interval for the population mean u. 2. Given the following data: 6. -3 3 5 3 4 Construct a 90 % confidence interval estimate for the population mean. 3. A random sample of 750 people shows that 150 are left-handed. Construct a 99% confidence interval for the true proportion of left-handers. 4. How large a sample would be necessary to estimate the true proportion defective in a large population within 5%, with 95% confidence? (Assume a pilot sample yields p = 0.5) %3D 5. Write a short note on point estimate and confidence interval estimate.
Q1.
Consider the following data:
x46523
y 64546
Find out the following:
(i) Karl Pearson correlation coefficient (r)
(ii) Regression equation ( )
Q2. Calculate Coefficient of determination (R’) from the following data:
x 34576
y 56446
Q3. Calculate Estimated Standard error (S,)from the following data:
x 3 4 521
y 345 26
Q4.
Calculate the Spearman's rank correlation(r). from the
following data:
Marks in Mathematics 35 46 45 30 20 60 20 55 20 36
Marks in Statistics
32 25 24 16 10 5 27 10 12 21
Q5. Write a short note on Correlation and Regression analysis.
Transcribed Image Text:Q1. Consider the following data: x46523 y 64546 Find out the following: (i) Karl Pearson correlation coefficient (r) (ii) Regression equation ( ) Q2. Calculate Coefficient of determination (R’) from the following data: x 34576 y 56446 Q3. Calculate Estimated Standard error (S,)from the following data: x 3 4 521 y 345 26 Q4. Calculate the Spearman's rank correlation(r). from the following data: Marks in Mathematics 35 46 45 30 20 60 20 55 20 36 Marks in Statistics 32 25 24 16 10 5 27 10 12 21 Q5. Write a short note on Correlation and Regression analysis.
Expert Solution
trending now

Trending now

This is a popular solution!

steps

Step by step

Solved in 2 steps

Blurred answer
Knowledge Booster
Optimization
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.
Similar questions
Recommended textbooks for you
Calculus For The Life Sciences
Calculus For The Life Sciences
Calculus
ISBN:
9780321964038
Author:
GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.
Publisher:
Pearson Addison Wesley,
Algebra & Trigonometry with Analytic Geometry
Algebra & Trigonometry with Analytic Geometry
Algebra
ISBN:
9781133382119
Author:
Swokowski
Publisher:
Cengage
Glencoe Algebra 1, Student Edition, 9780079039897…
Glencoe Algebra 1, Student Edition, 9780079039897…
Algebra
ISBN:
9780079039897
Author:
Carter
Publisher:
McGraw Hill
College Algebra
College Algebra
Algebra
ISBN:
9781305115545
Author:
James Stewart, Lothar Redlin, Saleem Watson
Publisher:
Cengage Learning
Algebra and Trigonometry (MindTap Course List)
Algebra and Trigonometry (MindTap Course List)
Algebra
ISBN:
9781305071742
Author:
James Stewart, Lothar Redlin, Saleem Watson
Publisher:
Cengage Learning
Functions and Change: A Modeling Approach to Coll…
Functions and Change: A Modeling Approach to Coll…
Algebra
ISBN:
9781337111348
Author:
Bruce Crauder, Benny Evans, Alan Noell
Publisher:
Cengage Learning