Online Exam 1_01
Part 1 of 1 -
85.0/ 100.0 Points
Question 1 of 20
5.0/ 5.0 Points
Determine which of the four levels of measurement is most appropriate for the statement below.
Ages of survey respondents.
A. Ratio
B. Interval
C. Ordinal
D. Nominal
5.0/ 5
Nicholas Banks
Student ID: AC1308722
MA260
Assignment #8
5/26/2015
1. A recent article in the Myrtle Beach Sun Times reported that the mean labor cost to repair a
color television is $90 with a standard deviation of $22. Montes TV Sales and Service
comple
2/28/2016 Online Exam 1_01
Online Exam 1_01
Part 1 of1 - Lesson 1 Questions 85.0/ 100.0 Points
Question 1 onO 5.0/5.0 Points
The y coordinate of a point where a graph crosses the y axis is called alan:
A. 1stquadrant.
B. X axis.
@ C. Y intercept.
D. X int
Student Name: Ileen Maynard
Student Identification Number: AC1112256
Course Number and Title: MA260 Statistical Analysis I
Assignment Number and Title: Assignment 06
Date of Submission: September 9, 2013
1. Compute the mean and variance of the following d
Online Exam 2_02
Part 1 of 1 -
70.0/ 100.0 Points
Question 1 of 20
0.0/ 5.0 Points
The stacked bar chart below shows the percentages of death due to cancer in four geographic regions of the U.S. that
occurred in three ethnic groups in 2003.
In which geogr
Online Exam 6_06
Part 1 of 2 -
42.5/ 50.0 Points
2.5/ 2.5 Points
Question 1 of 40
A study of students taking Statistics 101 was done. Four hundred students who studied for more than 10 hours
averaged a B. Two hundred students who studied for less than 10
Online Exam 8_07
Part 1 of 2 -
32.5/ 50.0 Points
0.0/ 2.5 Points
Question 1 of 40
A two-tailed test is conducted at the 5% significance level. What is the left tail percentile required to reject the null
hypothesis?
A. 97.5%
B. 5%
C. 2.5%
D. 95%
Question
Online Exam 4_04
Part 1 of 1 -
80.0/ 100.0 Points
Question 1 of 20
If light bulbs have lives that are normally distributed with a mean of
2500 hours and a standard deviation of 500 hours, what percentage of
light bulbs have a life less than 2500 hours?
5.
Online Exam 3_03
Part 1 of 1 -
65.0/ 100.0 Points
Question 1 of 20
5.0/ 5.0 Points
Last year, a road construction firm hired 11 new employees. Their ages at hiring are listed below. Find the mean hiring
age to one decimal place.
23 19 30 33 27 31 58 22 21
Course Number and Title MA260: Statistical Analysis
Assignment Number and Title Assignment # 8
07/07/15
1.
$75 repair z value:
z = (75 90) / 22 = -0.6818 or .68 below standard deviations below the mean
$100 repair z value:
z = (100-90) / 22 = 0.4545 or .4
Elonda Edwards
Student #: AC1408242
Statistical Analysis I MA260
02/08/2016
Assignment #8
1. A recent article in the Myrtle Beach Sun Times reported that the mean labor cost to
repair a color television is $90 with a standard deviation of $22. Montes TV S