To test Hg: u= 103 versus H,: u# 103 a simple random sample of size n= 35 is obtained. Complete parts a through e below. E Click here to view the t-Distribution Area in Right Tail. (a) Does the population have to be normally distributed to test this hypothesis? Why? O A. Yes, because n2 30. O B. No, because n2 30. OC. Yes, because the sample is random. O D. No, because the test is two-tailed. (b) If x = 99.9 ands= 5.7, compute the test statistic. The test statistic is to = (Round to two decimal places needed.) (c) Draw a t-distribution with the area that represents the P-value shaded. Choose the correct graph below. O A. OB. OC. (d) Approximate the P-value. Choose the correct answer below. O A. 0.005 < P.value < 0.01 O B. 0.002 < P.value < 0.005 OC. 0.01

To test Hg: u= 103 versus H,: u# 103 a simple random sample of size n= 35 is obtained. Complete parts a through e below. E Click here to view the t-Distribution Area in Right Tail. (a) Does the population have to be normally distributed to test this hypothesis? Why? O A. Yes, because n2 30. O B. No, because n2 30. OC. Yes, because the sample is random. O D. No, because the test is two-tailed. (b) If x = 99.9 ands= 5.7, compute the test statistic. The test statistic is to = (Round to two decimal places needed.) (c) Draw a t-distribution with the area that represents the P-value shaded. Choose the correct graph below. O A. OB. OC. (d) Approximate the P-value. Choose the correct answer below. O A. 0.005 < P.value < 0.01 O B. 0.002 < P.value < 0.005 OC. 0.01

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

See similar textbooks

Similar questions

→ 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
Use a T-test of the data given in the picture, compare it with a P value(one tailed) and do a statistical analysis?
Cassie is a gym teacher who develops a training regimen to promote physical health among elementary school students. She knows that scores on a measure of physical health are normally distributed with µ = 75 and σ = 10. She randomly selects one student in her class to complete the training regimen, and this students scores X = 82 on the measure of physical health afterwards. Based on this score, Cassie can conclude that the training regimen _____. A. does have an effect on physical health because this score or larger would be expected 75.80% of the time even if the training regimen does not have an effect. B. does have an effect on physical health because this score or larger would be expected 24.20% of the time even if the training regimen does not have an effect. C. does not have an effect on physical health because this score or larger would be expected 24.20% of the time even if the training regimen does not have an effect. D. does not have an…
Determine the sample mean, sample variance, and sample standard deviation
e 1912. The means of two random samples of size 9 and 7 are 196-42 and 198-82 respectiveh. The sum of ihe squares of the deviations from the mean are 26-94 and 18:73 respectively. Can the samples be considered to have been drawn from the same normal population ? (Apply t-test).
The table shows population statistics for the ages of Best Actor and Best Supporting Actor winners at an awards ceremony. The distributions of the ages are approximately bell-shaped. Compare the z-scores for the actors in the following situation. Best Actor Best Supporting Actor µ= 42.0 µ= 51.0 o = 8.7 o = 12 In a particular year, the Best Actor was 40 years old and the Best Supporting Actor was 77 years old. Determine the z-scores for each. Best Actor: z %3D Best Supporting Actor: z = (Round to two decimal places as needed.) Interpret the z-scores. The Best Actor was the mean, which unusual. The Best Supporting Actor was the mean, which unusual.
Practice Exercise Determine if the random variable X or Y is discrete or continuous. 1. X = number of points scored in the last season by a randomly selected basketball player in the PBA 2. Y = the height in centimeter of a randomly selected student inside the library 3. X = number of birds in a nest 4. Y = the weights in kg of randomly selected dancers after taking up aerobics 5. Z = the hourly temperatures last Sunday
A study of seat belt users and nonusers yielded the randomly selected sample data summarized in the accompanying table. Use a 0.05 significance level to test the claim that the amount of smoking is independent of seat belt use. A plausible theory is that people who smoke are less concerned about their health and safety and are therefore less inclined to wear seat belts. Is this theory supported by the sample data? E Click the icon to view the data table. Determine the test statistic. *= (Round to three decimal places as needed.) Determine the P-value of the test statistic. P-Value (Round to three decimal places as needed.) Use a 0.05 significance level to test the claim that the amount of smoking is independent of seat belt use. A plausible theory is that people who smoke are less concerned about their health and safety and are therefore less inclined to wear seat belts. Is this theory supported by the sample data?
The table shows population statistics for the ages of Best Actor and Best Supporting Actor winners at an awards ceremony. The distributions of the ages are approximately bell-shaped. Compare the z-scores for the actors in the following situation. Best actor Best supporting actor u= 41.0 u=55.0 Q= 7.7 Q= 12 In a particular year, the Best Actor was 44 years old and the best supporting actor was 42 years old. Determine the z-scores for each. best actor z=____________ best supporting actor z=___________ Round to two decimal places as needed.
Determine u- and o from the given parameters of the population and sample size. p%3D88, o%3D9, n 38 (Round to three decimal places as needed.)
which is the correct answer? mesokurtic distribution leptokurtic platykurtic None of these
Find the variance and standard deviation for the sample (Ex)? use the computational formula: Σx² X SPIESTN 9 10 17 13 5 7 6 2 Ex² = SS= 5² = S= Blank 1 Blank 2 Blank 3 Blank 4 Add your answer n