Homework Help is Here – Start Your Trial Now!
Math
Probability
QUESTION 22 The following information represents the humidity level (x) and the moisture content (y) for 12 days: Ex2 = 22265 Ey? = 1802 Ex = 507 Exy = 6314 Ey = 144 The sample correlation coefficient is: O 0.8990 %3D O 0.8854 O 0.9202 O 0.8143 QUESTION 23 A research worker wants to determine the average time it takes a mechanic to rotate the tires of a car, and she war confidence that the mean of her sample is off by at most 0.4 minutes. If she can presume from past experience tha distribution with a standard deviation of 1.5 minutes, how large the sample will she have to take? Click Save and Submit to save and submit. Click Save All Answers to save all answers. BA HUMAX HUMAX

QUESTION 22 The following information represents the humidity level (x) and the moisture content (y) for 12 days: Ex2 = 22265 Ey? = 1802 Ex = 507 Exy = 6314 Ey = 144 The sample correlation coefficient is: O 0.8990 %3D O 0.8854 O 0.9202 O 0.8143 QUESTION 23 A research worker wants to determine the average time it takes a mechanic to rotate the tires of a car, and she war confidence that the mean of her sample is off by at most 0.4 minutes. If she can presume from past experience tha distribution with a standard deviation of 1.5 minutes, how large the sample will she have to take? Click Save and Submit to save and submit. Click Save All Answers to save all answers. BA HUMAX HUMAX

A First Course in Probability (10th Edition)
A First Course in Probability (10th Edition)
10th Edition
ISBN:9780134753119
Author:Sheldon Ross
Publisher:Sheldon Ross
Chapter1: Combinatorial Analysis
Section: Chapter Questions
Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...
See similar textbooks
icon
Related questions
icon
Concept explainers
Question
100%
O Reject Ho because -3.43 < -2.576 O Do not reject Ho because -3.43 < -2.576 QUESTION 22 The following information represents the humidity level (x) and the moisture content (y) for 12 days: ΣΥ 144 ΣΥ-1302 Σx= 507 Ex² = 22265 Exy = 6314 %3D The sample correlation coefficient is: O 0.8990 O 0.8854 0.9202 O 0.8143 QUESTION 23 A research worker wants to determine the average time it takes a mechanic to rotate the tires of a car, and she wants confidence that the mean of her sample is off by at most 0.4 minutes. If she can presume from past experience that th distribution with a standard deviation of 1.5 minutes, how large the sample will she have to take? Click Save and Submit to save and submit. Click Save All Answers to save all answers. OSHIBA HUMAX HUMAX
Transcribed Image Text:O Reject Ho because -3.43 < -2.576 O Do not reject Ho because -3.43 < -2.576 QUESTION 22 The following information represents the humidity level (x) and the moisture content (y) for 12 days: ΣΥ 144 ΣΥ-1302 Σx= 507 Ex² = 22265 Exy = 6314 %3D The sample correlation coefficient is: O 0.8990 O 0.8854 0.9202 O 0.8143 QUESTION 23 A research worker wants to determine the average time it takes a mechanic to rotate the tires of a car, and she wants confidence that the mean of her sample is off by at most 0.4 minutes. If she can presume from past experience that th distribution with a standard deviation of 1.5 minutes, how large the sample will she have to take? Click Save and Submit to save and submit. Click Save All Answers to save all answers. OSHIBA HUMAX HUMAX
→ xC 0 D Remaining Time: 1 hour, 45 minutes, 21 seconds. v Question Completion Status: 2x= JUT The sample correlation coefficient is: O 0.8990 O 0.8854 O 0.9202 O 0.8143 1.5 poi QUESTION 23 research worker wants to determine the average time it takes a mechanic to rotate the tires of a car, and she wants to be able to assert with 9596 confidence that the mean of her sample is off by at most 0.4 minutes. If she can presume from past experience that the actual time follows normal distribution with a standard deviation of 1.5 minutes, how large the sample will she have to take? O 5 O 39 O 38 O 54 Click Save and Submit to save and submit. Click Save All Answers to save all answers. Save All Answers Close Window
Transcribed Image Text:→ xC 0 D Remaining Time: 1 hour, 45 minutes, 21 seconds. v Question Completion Status: 2x= JUT The sample correlation coefficient is: O 0.8990 O 0.8854 O 0.9202 O 0.8143 1.5 poi QUESTION 23 research worker wants to determine the average time it takes a mechanic to rotate the tires of a car, and she wants to be able to assert with 9596 confidence that the mean of her sample is off by at most 0.4 minutes. If she can presume from past experience that the actual time follows normal distribution with a standard deviation of 1.5 minutes, how large the sample will she have to take? O 5 O 39 O 38 O 54 Click Save and Submit to save and submit. Click Save All Answers to save all answers. Save All Answers Close Window
Expert Solution
trending now

Trending now

This is a popular solution!

steps

Step by step

Solved in 2 steps with 1 images

SEE SOLUTIONCheck out a sample Q&A here
Blurred answer
Knowledge Booster
Correlation, Regression, and Association
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, probability and related others by exploring similar questions and additional content below.
Recommended textbooks for you
A First Course in Probability (10th Edition)
A First Course in Probability (10th Edition)
Probability
ISBN:
9780134753119
Author:
Sheldon Ross
Publisher:
PEARSON
A First Course in Probability
A First Course in Probability
Probability
ISBN:
9780321794772
Author:
Sheldon Ross
Publisher:
PEARSON
SEE MORE TEXTBOOKS