A building contractor has a chance to buy an odd lot of 9,000 used bricks at an auction. She is interested in determining the proportion of bricks in the lot that are cracked and therefore unusable for her current project, but she does not have enough time to inspect all9,000 bricks. Instead, she checks 150 bricks to determine which ones are cracked.What is the population of interest?O the rest of the 8,700 bricksO the rest of the 8,850 bricksO all building contractorsO all 9,000 bricks in the lotO the 150 bricks selected for inspectionWhat group constitutes the sample?O all building contractorsO all 9,000 bricks in the lotO the rest of the 8,700 bricksO the 150 bricks selected for inspectionO the rest of the 8,850 bricks

Given: The total bricks are 9000 The number of bricks to be examined is 150.

Answered: What is the population of interest? O…

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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9) You wish to test the following claim (HaHa) at a significance level of α=0.02α=0.02. Ho:p1=p2Ho:p1=p2 Ha:p1≠p2Ha:p1≠p2You obtain 91.4% successes in a sample of size n1=455n1=455 from the first population. You obtain 92.6% successes in a sample of size n2=555n2=555 from the second population. For this test, you should NOT use the continuity correction, and you should use the normal distribution as an approximation for the binomial distribution.What is the test statistic for this sample? (Report answer accurate to three decimal places.)test statistic = What is the p-value for this sample? (Report answer accurate to four decimal places.)p-value = The p-value is... less than (or equal to) αα greater than αα This test statistic leads to a decision to... reject the null accept the null fail to reject the null As such, the final conclusion is that... There is sufficient evidence to warrant rejection of the claim that the first population proportion is not equal…
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Instructor-created question The favorite sports of students in a statistics class are shown in the following table. Students' Favorite Sports O None Soccer Hockey Soccer Hockey Soccer 1. Frank 2. Angelica 3. Craig 4. Keith Baseball Нockey Нockey Football 5. Kat 6. Gerardo 7. Jason 8. Marissa 9. Anas 10. Harold 11. Calvin 12. Amy Hockey Baseball a. Suppose technology randomly selects the following values: 6, 2, 9. 4. 3, 5. Use this random sample to find the proportion of students who prefer hockey. LType an integer or a simplified fraction.) If your result is used to describe the sample, is this part of descriptive or inferential statistics? Explain. OA. Descriptive statistics because it uses tables, graphs, or calculations about a sample to draw conclusions about only the sample. O B. Descriptive statistics because it is using information from a sample to draw conclusions about the entire population. O C. Inferential statistics because it uses tables, graphs, or calculations about a…
A community college employs 8787 full-time faculty members. To gain the faculty's opinions about an upcoming building project, the college president wishes to obtain a simple random sample that will consist of 99 faculty members. He numbers the faculty from 1 to 8787. Complete parts (a) and (b) below. LOADING... Click the icon to view the random number table. Question content area bottom Part 1 (a) Using the provided random number table, the president closes his eyes and drops his ink pen on the table. It points to the digit in row 3, column 6. Using this position as the starting point and proceeding downward, determine the numbers for the 99 faculty members who will be included in the sample. The numbers for the faculty members are enter your response here.
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A community college employs 87full-time faculty members. To gain the faculty's opinions about an upcoming building project, the college president wishes to obtain a simple random sample that will consist of 9 faculty members. He numbers the faculty from 1 to 87. Complete parts (a) and (b) below. Question content area bottom Part 1 (a) Using the provided random number table, the president closes his eyes and drops his ink pen on the table. It points to the digit in row 3, column 6. Using this position as the starting point and proceeding downward, determine the numbers for the 99 faculty members who will be included in the sample. The numbers for the faculty members are 60, 14, 72, 52, 40, 23, 28, 36, 54. (Use a comma to separate answers as needed.) Part 2 (b) The president uses technology to produce the following random numbers. 78 74 59 87 17 74 16 8 4 70 Determine the numbers for 9 faculty members who will be included in the sample. The numbers for the…
C please. Last person didn’t do it. But did all the answers I already did do. Thanks
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Answers only. Thank you An instructor recorded the following number of correct items (in a quiz with 10 questions) for the 12 students present: 7, 4, 2, 2, 2, 9, 10, 6, 7, 3, 8, 5. What is the level of measurement of the data obtained?* a. Ordinal b. Ratio c. Interval d. Nominal 2. The purpose of stratified random sampling is to make certain that* a. the sample is more representative of the target population than the accessible population. b. the participants chosen for the study are the ones most likely to react to the treatment. c. every member of the population has an equal chance of being selected for the sample. d. the sample proportionately represents individuals from different categories of the population 3. In a simple random sample, a. each member in the population has a chance of being included in the sample. b. not all members in the population are given the chance of being selected. c. each…
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