The State Superintendent of Schools consistently states that the average salary of all substitute teachers in every school district is at least $60 per day. The president of the teachers' union believes that the average salary is less than $60 per day. So, she sample eight school districts to help test her claim. The daily salaries she found for the districts were $60 $56 $60 $55 $70 $55 $60 and, $55 f. In the context of the problem, write a conclusion to the study and substantiate your conclusion using statistical arguments. Use an alpha level of 0.05. g. Find a 95% confidence interval for the true daily salary based on the data.

The State Superintendent of Schools consistently states that the average salary of all substitute teachers in every school district is at least $60 per day. The president of the teachers' union believes that the average salary is less than $60 per day. So, she sample eight school districts to help test her claim. The daily salaries she found for the districts were $60 $56 $60 $55 $70 $55 $60 and, $55 f. In the context of the problem, write a conclusion to the study and substantiate your conclusion using statistical arguments. Use an alpha level of 0.05. g. Find a 95% confidence interval for the true daily salary based on the data.

Name: The State Superintendent of Schoolsconsistently states that the avera
Uploaded: 2024-03-20T07:07:00.000Z
Channel: Bartleby
Description: The State Superintendent of Schoolsconsistently states that the average salary of allsubstitute teachers in every school district is atleast $60 per day. The president of the teachers'union believes that the average salary is lessthan $60 per day. S

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

Professor James gave the same test to his three sections of statistics students. On the 35-question test, the highest score was 32 and the lowest was 15. Based on the information displayed in the boxplots above, which of the following statements is true? Section 1 has the smallest interquartile range. The lowest score in section 2 is higher than the highest score in either of the other sections. Section 2 has the smallest range of scores. The top 25% of scores in section 2 are lower than the highest score in section 3. At least 50% of the scores in section 3 are higher than all of the scores in section 1.
Read the following prompt and complete the subquestions 3.a, 3.b, and 3.c
Item 9
In a recent poll, 360 people were asked if they preferred cats or dogs. 49% said they preferred dogs and 51% of people said they preferred cats, with a margin of error of 2%. Which statement is true? A. In general, people prefer dogs. B. The number of people that prefer dogs is between 47% and 51%, and the number of people that prefer cats is between 49% and 53% C. In general, people prefer cats.
Use the following results from a test for marijuana use, which is provided by a certain drug testing company. Among 142 subjects with positive test results, there are 27 false positive results. Among 151 negative results, there are 2 false negative results. Complete parts (a) through (c). (Hint: Construct a table.) a. How many subjects were included in the study? The total number of subjects in the study was b. How many subjects did not use marijuana? A total of subjects did not use marijuana. c. What is the probability that a randomly selected subject did not use marijuana? The probability that a randomly selected subject did not use marijuana is: (Do not round until the final answer. Then round to three decimal places as needed.)
A study investigated whether price affects people's judgment. Twenty people each tasted six cabernet sauvignon wines and rated how they liked them on a scale of 1 to 6. Prior to tasting each wine, participants were told the price of the wine. Of the six wines tasted, two were actually the same wine, but for one tasting the participant was told that the wine cost $10 per bottle and for the other tasting the participant was told that the wine cost $90 per bottle. The participants were randomly assigned either to taste the $90 wine first and the $10 wine second, or the $10 wine first and the $90 wine second. Differences were calculated by subtracting the rating for the tasting in which the participant thought the wine cost $10 from the rating for the tasting in which the participant thought the wine cost $90. Difference ($90 3 4 $10) 2 1 USE SALT 0 3 0 2 1 3 3 1 4 1 2 Find the test statistic. (Round your answer to two decimal places.) t = 2 1 -1 Carry out a hypothesis test to determine if…
Please find question attached, Thanks!
When answering questions on a survey, Melanie prefers to answer questions that allow her to write her own responses, so she is free to answer in any way that she'd like, rather than just pick a number. What kind of questions does Melanie prefer? A. Open-ended questions B. Good-quality questions C. Closed-ended questions D. Bad-quality questions
Last semester, Janelle got an A in her English class, a D in her Psychology class, a B in Biology, an A in Movie Appreciation, and a C in Math. Biology was a four-credit class, while the others were three-credit classes. Using the usual grade point scale (A = 4.0, B = 3.0, C = 2.0, D = 1.0, F = 0.0), what was her GPA? Round your answer to three decimal places. GPA =
Use the following results from a test for marijuana use, which is provided by a certain drug testing company. Among 141 subjects with positive test results, there are 23 false positive results. Among 157 negative results, there are 4 false negative results. Complete parts (a) through (c). (Hint: Construct a table.) a. How many subjects were included in the study? The total number of subjects in the study was
Use the following results from a test for marijuana use, which is provided by a certain drug testing company. Among 141 subjects with positive test results, there are 30 false positive results. Among 155 negative results, there are 3 false negative results. Complete parts (a) through (c). (Hint: Construct a table.) a. How many subjects were included in the study? The total number of subjects in the study was b. How many subjects did not use marijuana? A total of subjects did not use marijuana. c. What is the probability that a randomly selected subject did not use marijuana? The probability that a randomly selected subject did not use marijuana is (Do not round until the final answer. Then round to three decimal places as needed.)
Use the following results from a test for marijuana use, which is provided by a certain drug testing company. Among 144 subjects with positive test results, there are 24 false positive results. Among 158 negative results, there are 2 false negative results. Complete parts (a) through (c). (Hint: Construct a table.) a. How many subjects were included in the study? The total number of subjects in the study was b. How many subjects did not use marijuana? A total of subjects did not use marijuana. c. What is the probability that a randomly selected subject did not use marijuana? The probability that a randomly selected subject did not use marijuana is (Do not round until the final answer. Then round to three decimal places as needed.)