MATLAB: An Introduction with Applications
6th Edition
ISBN: 9781119256830
Author: Amos Gilat
Publisher: John Wiley & Sons Inc
expand_more
expand_more
format_list_bulleted
Related questions
Question
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
Transcribed Image Text:Use the traditional method of hypothesis testing. Complete the step 1-5.
1. The
ро.
can you conclude that the averag
2. The Medical Rehabilitation Education Foundation reports that the average cost of rehabilitation
for stroke victims is $24,672. To see if the average cost of rehabilitation is different at a
particular hospital, a researcher selects a random sample of 35 stroke victims at the hospital
and finds that the average cost of their rehabilitation is $26,343. The standard deviation of the
population is $3251. At a = 0.01, can it be concluded that the average cost of stroke
rehabilitation at a particular hospital is different from $24,672?
3. The Family and Medical Leave Act provides job protection and unpaid time off from work for a
serious illness or birth of a child. In 2000, 60% of the respondents of a survey stated that it was
very easy to get time off for these circumstances. A researcher wishes to see if the percentage
who said that it was very easy to get time off has changed. A sample of 100 people who used
the leave said that 53% found it easy to use the leave. At a = 0.01, has the percentage
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.
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?
plant food
new
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?
100
125
150
125
155
140
150
145
135
160
160
120
185
100
110
Expert Solution
This question has been solved!
Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.
Step by stepSolved in 2 steps with 1 images
Knowledge Booster
Similar questions
- Homeless Population Per State from 2010 to 2020 Source: https://www.usich.gov/homelessness-statistics State 2010 2020 Alabama 6046 3351 Alaska 1832 1949 Arizona 13711 10979 Arkansas 2762 2366 California 123480 161548 Colorado 15482 9846 Connecticut 4316 2905 DC 6539 6380 Delaware 982 1165 Florida 57551 27487 Georgia 19836 10234 Hawaii 5834 6458 Idaho 2346 2315 Illinois 14395 10431 Indiana 6452 5625 Iowa 3014 2647 Kansas 2024 2449 Kentucky 6623 4011 Louisiana 12482 3173 Maine 2379 2097 Maryland 10845 6360 Massachusetts 16646 17975 Michigan 13058 8638 Minnesota 7869 7940 Mississippi 2743 1107 Missouri 8122 6527 Montana 1615 1545 Nebraska 3877 2404 Nevada 11205 6900 New Hampshire 1574 1675 New Jersey 13737 9662 New Mexico 3475 3333 New York 65606 91271 North Carolina 12191 9280 North Dakota 799 541 Ohio 12569 10655 Oklahoma 5229 3932 Oregon 19492 14655 Pennsylvania 14516 13375 Rhode Island 1282 1104 South Carolina 4473 4287 South Dakota 731 1058 Tennessee 10276 7256 Texas 35121 27229 Utah…arrow_forwardI am really struggling with this assingment. Please solve. Thank you!arrow_forwardStep 3 please and thank youarrow_forward
- 0.05 level of significance. Solve for appropriate test statistic and show written work!arrow_forwardSalma claimed that the gas price in Blue Park neighborhood (mean of $3.65) is higher than that in Green Spring (mean of $3.59). She obtained the t-value of 2.223 after calculating data from 6 gas stations in Blue Park and 5 gas stations in Green Spring. Use the chart below and determine if Salma's claim is supported! Table 10-3. Critical values of "t" significance level p= 0.05 significance level p= 0.01 TP 1 12.706 63.657 2 4.303 9.925 3 3.182 5.841 2.776 4.604 5 2.571 4.032 6 2.447 3.707 7 2.365 3.499 2.306 3.355 9 2.262 3.250 10 2.228 3.169 11 2.201 3.106 Copy the following into your text box, fill in the blanks, and answer the questions A. The degree of freedom is: B. The t-calculated value is: and the t-critical value is : C. Comparison: t-calc t-crit (answer with ()) D. Is the null hypothesis accepted or rejected? Explain how you determined that! Also, explain what it means to reject or accept the hypothesis! E. Explain if Salma's claim is supported based on your t-value…arrow_forwardThe summary statistics are n=85, x=3.93, s=0.63. Use a 0.01 significance level to test the claim that the population of student course evaluations has a mean equal to 4.00. identify null/ alt hypothesis, test statistic, P- value, and state final conclusion that addresses the original claimarrow_forward
- A professional marketing survey involves product recognition in New York and California. Of 558 New York residents surveyed, 193 knew the product while 179 out of 614 Californians knew the product. 1. Test the claim that the recognition rates are greater in New York. 2. In which state does the product need the most help with name recognition? Use the given data to compare mean age of residents in Seaside and Marina. Sample Data * = 43.2 yr s = 4.7 yr n = 97 Seaside Before After 1. Test the claim that the mean age of seaside residents is equal to the mean age of Marina residents. 2. How would the result change if we use a = 0.01? Matched Pairs: Write the alternative hypothesis H₁, for each claim: 1. New engine management software will increase the gas mileage in your car. 2. My coaching will reduce your golf score. Difference An instructor gives a test before and after a lesson with these results from randomly selected students Before and After Data 54 70 = 61 Marina 56 s = 6.7 year…arrow_forwardHelp pleasearrow_forwardI understand how the level of signficance = 1.96 and I understand: Ho:μ=5 - Ha:μ<5 But I need help understanding how to calculate the test statistic. I know we have a sum of 93 with a sample size of 28 but how do you come to the conclusion for the test stastisic and how do you figure out whether you have enough proof to accept or reject the claim? Thank you.arrow_forward
arrow_back_ios
arrow_forward_ios
Recommended textbooks for you
- MATLAB: An Introduction with ApplicationsStatisticsISBN:9781119256830Author:Amos GilatPublisher:John Wiley & Sons Inc
Probability and Statistics for Engineering and th...StatisticsISBN:9781305251809Author:Jay L. DevorePublisher:Cengage Learning
Statistics for The Behavioral Sciences (MindTap C...StatisticsISBN:9781305504912Author:Frederick J Gravetter, Larry B. WallnauPublisher:Cengage Learning 
Elementary Statistics: Picturing the World (7th E...StatisticsISBN:9780134683416Author:Ron Larson, Betsy FarberPublisher:PEARSON
The Basic Practice of StatisticsStatisticsISBN:9781319042578Author:David S. Moore, William I. Notz, Michael A. FlignerPublisher:W. H. Freeman
Introduction to the Practice of StatisticsStatisticsISBN:9781319013387Author:David S. Moore, George P. McCabe, Bruce A. CraigPublisher:W. H. Freeman
MATLAB: An Introduction with Applications
Statistics
ISBN:9781119256830
Author:Amos Gilat
Publisher:John Wiley & Sons Inc
Probability and Statistics for Engineering and th...
Statistics
ISBN:9781305251809
Author:Jay L. Devore
Publisher:Cengage Learning
Statistics for The Behavioral Sciences (MindTap C...
Statistics
ISBN:9781305504912
Author:Frederick J Gravetter, Larry B. Wallnau
Publisher:Cengage Learning
Elementary Statistics: Picturing the World (7th E...
Statistics
ISBN:9780134683416
Author:Ron Larson, Betsy Farber
Publisher:PEARSON
The Basic Practice of Statistics
Statistics
ISBN:9781319042578
Author:David S. Moore, William I. Notz, Michael A. Fligner
Publisher:W. H. Freeman
Introduction to the Practice of Statistics
Statistics
ISBN:9781319013387
Author:David S. Moore, George P. McCabe, Bruce A. Craig
Publisher:W. H. Freeman