on a nal mathematics assessment test has a mean score of 281. This test result prompts a state school administrator to declare that the mean score for the state's eighth graders on this exam is more than 275. Assume that the population standard deviation is 32. At a= 0.09, is there enough evidence to support the administrator's claim? Complete parts (a) through (e). (a) Write the claim mathematically and identify Ho and Ha. Choose the correct answer below. O A. Ho: H= 275 (claim) Ha: p> 275 O B. Ho: H2275 (claim) OC. Ho: us275 (claim) Ha: u> 275 %3D Ha: u<275 O D. Ho: u= 275 O E. Ho: Hs275 O F. Ho: H< 275 Ha: H> 275 (claim) Ha: >275 (claim) Ha: 2 275 (claim)

on a nal mathematics assessment test has a mean score of 281. This test result prompts a state school administrator to declare that the mean score for the state's eighth graders on this exam is more than 275. Assume that the population standard deviation is 32. At a= 0.09, is there enough evidence to support the administrator's claim? Complete parts (a) through (e). (a) Write the claim mathematically and identify Ho and Ha. Choose the correct answer below. O A. Ho: H= 275 (claim) Ha: p> 275 O B. Ho: H2275 (claim) OC. Ho: us275 (claim) Ha: u> 275 %3D Ha: u<275 O D. Ho: u= 275 O E. Ho: Hs275 O F. Ho: H< 275 Ha: H> 275 (claim) Ha: >275 (claim) Ha: 2 275 (claim)

Name: on anal mathematics assessment test has a mean score of 281. This tes
Uploaded: 2024-03-20T07:07:12.000Z
Channel: Bartleby
Description: on anal mathematics assessment test has a mean score of 281. This test result prompts a state school administrator to declare that the mean score for the state's eighthgraders on this exam is more than 275. Assume that the population standard deviat

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

A nationwide test taken by high school sophomores and juniors has 3 sections, each scored on a scale of 20 to 80. In a recent year, the national mean score for the writing section was 48.7, with a standard deviation of 10.6. Based on the information, complete the following statements about the distribution of the scores on the writing section for the recent year.
Animals of a given weight are operated on in a veterinary hospital. The dose of anesthetic A (in mg) required to render animals suitably unconscious for the operation is normally distributed with mean 120 and standard deviation 20. The lethal dose L (in mg) of the same anesthetic for these animals is also normally distributed, with mean 350 and standard deviation 50. (Help on part a and b) a. Find a dose "D" that the vet should administer, in order that 99.9% of animals will be suitably unconscious for the operation. b. If the dose "D" that you found in part a is administered, what percentage of animals die?
A group of adult males has foot lengths with a mean of 26.63 cm and a standard deviation of 1.32 cm. Use the range rule of thumb to identify the limits separating values that are significantly low or significantly high. Is the adult male foot length of 29.8 cm significantly low or significantly high? Explain. Significantly low values are nothing cm or lower. (Type an integer or a decimal. Do not round.) Significantly high values are nothing cm or higher. (Type an integer or a decimal. Do not round.) Select the correct choice below and fill in the answer box(es) to complete your choice. A. The adult male foot length of 29.8 cm is not significant because it is between nothing cm and nothing cm. (Type integers or decimals. Do not round.) B. The adult male foot length of 29.8 cm is significantly low because it is less than nothing cm. (Type an integer or a decimal. Do not round.) C. The adult male foot length of 29.8 cm is significantly high because it is…
3
The speed of cars driving past Johnson City High School, on 666 Reynolds Rd, were recorded over one school year. The speed limit on that part of Reynolds Rd is 20 mph. The mean of the speed readings was 24.19 mph, with a standard deviation of 3.56 mph.
A group of adult males has foot lengths with a mean of 27.75 cm and a standard deviation of 1.11 cm. Use the range rule of thumb to identify the limits separating values that are significantly low or significantly high. Is the adult male foot length of 30.6 cm significantly low or significantly high? Explain. Significantly low values are cm or lower. (Type an integer or a decimal. Do not round.) Significantly high values are cm or higher. (Type an integer or a decimal. Do not round.) Select the correct choice below and fill in the answer box(es) to complete your choice. The adult male foot length of 30.6 cm is significantly high because it is greater than O A. (Type an integer or a decimal. Do not round.) cm. The adult male foot length of 30.6 cm is significantly low because it is less than О в. (Type an integer or a decimal. Do not round.) cm. The adult male foot length of 30.6 cm is not significant because it is between OC. cm and cm. (Type integers or decimals. Do not round.)
please answer a, b, c
I need help solving a) I tried 21.2, 21.9, and they were both incorrect. Please explain step by step.
Researchers measured the data speeds for a particular smartphone carrier at 50 airports. The highest speed measured was 77.3 Mbps. The complete list of 50 data speeds has a mean of x = 18.24 Mbps and a standard deviation of s = 17.77 Mbps. a. What is the difference between carrier's highest data speed and the mean of all 50 data speeds? b. How many standard deviations is that [the difference found in part (a)]? c. Convert the carrier's highest data speed to a z score. d. If we consider data speeds that convert to z scores between -2 and 2 to be neither significantly low nor significantly high, is the carrier's highest data speed significant? a. The difference is (Type an integer or a Mbps. decimal. Do not round.) b. The difference is (Round to two decimal standard deviations. places as needed.) c. The z score is z = (Round to two decimal places as needed.) d. The carrier's highest data speed is C
If the mean speed for a major league fast ball is 90 miles per hour and the standard deviation is 5 miles per hour, what would the standardized score be for a pitch that is 97 miles per hour? O 0.4 4.0 1.4 O 1.0
Please help me with this question.
A quiz related to digital knowledge was conducted. The quiz had 10 questions and covered topics such as the purpose of browser cookies, phishing scams, and privacy policies. The survey was given to 50 people. The mean score is 4.1 with a standard deviation of 2.6. We want to know if the data provide evidence that the mean score in the population is lower than 5. We will use alpha = 0.05 to make our decision. part a. Is this a one-sided or two-sided test? part b. What is the standard error for this problem? part c. How many degrees of freedom do we have for this problem? part d. What is the test statistic, t, for this problem? Based on your test statistic and degrees of freedom, the p-value will be between what two values? (If you cannot find the exact df in the table, round down to be safe. So if you have 38 df, round down to 30df.) Group of answer choices The p-value is between .1 and .05 The p-value is between .05 and .025 The p-value is between .025 and .01 The p-value…