4. It has been found that 85.6% of all enrolled college and university students in the United States are undergraduates. A random sample of 500 enrolled college students in a particular state revealed that 420 of them were undergraduates. Is there sufficient evidence to conclude that the proportion differs from the national percentage? Use a = 0.05.

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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PLEASE COMPLETE STEP 1 TO 5 and DO NOT USE EXCEL. Step 1. State Ha and Ho Step 2. Level of significance Step 3. Test-statistic used (z-test or t-test) Step 4- Compute the test statistic Step 5- conclusion
Use the traditional method of hypothesis testing. Complete the step 1-5.
1. The
po
T
41107
CARE
COU
rek
very e
as ma
can you conclude that the averag
racula
me Off for these
100
125
150
CUSTOTON
125
155
140
672?
150
145
135
plant food
new
changed?
4. It has been found that 85.6% of all enrolled college and university students in the United States
are undergraduates. A random sample of 500 enrolled college students in a particular state
revealed that 420 of them were undergraduates. Is there sufficient evidence to conclude that
the proportion differs from the national percentage? Use a = 0.05.
160
160
120
habilitation
5. A physician claims that joggers' maximal volume oxygen uptake is greater than the average of
all adults. A sample of 15 joggers has a mean of 40.6 milliliters per kilogram (ml/kg) and a
standard deviation of 6 ml/kg. If the average of all adults is 36.7 ml/kg, is there enough
evidence to support the physician's claim at a = 0.05?
ital
deviation of the
6. The average 1-ounce chocolate chip cookie contains 110 calories. A random sample of 15
different brands of 1-ounce chocolate chip cookies resulted in the following calorie amounts. At
the a = 0.01 level, is there sufficient evidence that the average calorie content is greater
thanm110 calories?
185
100
110
at it was
the percentage
Transcribed Image Text:Use the traditional method of hypothesis testing. Complete the step 1-5. 1. The po T 41107 CARE COU rek very e as ma can you conclude that the averag racula me Off for these 100 125 150 CUSTOTON 125 155 140 672? 150 145 135 plant food new changed? 4. It has been found that 85.6% of all enrolled college and university students in the United States are undergraduates. A random sample of 500 enrolled college students in a particular state revealed that 420 of them were undergraduates. Is there sufficient evidence to conclude that the proportion differs from the national percentage? Use a = 0.05. 160 160 120 habilitation 5. A physician claims that joggers' maximal volume oxygen uptake is greater than the average of all adults. A sample of 15 joggers has a mean of 40.6 milliliters per kilogram (ml/kg) and a standard deviation of 6 ml/kg. If the average of all adults is 36.7 ml/kg, is there enough evidence to support the physician's claim at a = 0.05? ital deviation of the 6. The average 1-ounce chocolate chip cookie contains 110 calories. A random sample of 15 different brands of 1-ounce chocolate chip cookies resulted in the following calorie amounts. At the a = 0.01 level, is there sufficient evidence that the average calorie content is greater thanm110 calories? 185 100 110 at it was the percentage
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