1. The cost of a daily newspaper varies from city to city. However, the variation among price remains steady with a standard deviation of 20 cents. A study was done to test the daim that the mean cost of a dzily newspaper is $1.00. Twelve costs yield a mean cost of 95 cents with standard deviation of 18 cents. Do the data support the daim at the 1% level 2. An articde in the Daily Bulletin stated that students in Angeles City University take 4.5 years on average to finish their under gradu ate degrees. Suppose you believe that the mean time is longer You conduct a survey of 49 students and obtain a sample mean of 5.1 with a sample standare deviation of 1.2. Do the data support your cdaim at the 1% level? 3. Table below shows the birth rate per 1000 popul ation during the years 1990-1996. Year 1990 1991 1992 1993 1994 1995 1996 Birth rate per 1000 16.5 163 15.9 15.5 15.2 14.8 14.5 2 Graph the data
1. The cost of a daily newspaper varies from city to city. However, the variation among price remains steady with a standard deviation of 20 cents. A study was done to test the daim that the mean cost of a dzily newspaper is $1.00. Twelve costs yield a mean cost of 95 cents with standard deviation of 18 cents. Do the data support the daim at the 1% level 2. An articde in the Daily Bulletin stated that students in Angeles City University take 4.5 years on average to finish their under gradu ate degrees. Suppose you believe that the mean time is longer You conduct a survey of 49 students and obtain a sample mean of 5.1 with a sample standare deviation of 1.2. Do the data support your cdaim at the 1% level? 3. Table below shows the birth rate per 1000 popul ation during the years 1990-1996. Year 1990 1991 1992 1993 1994 1995 1996 Birth rate per 1000 16.5 163 15.9 15.5 15.2 14.8 14.5 2 Graph the data
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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