22. Identify the sampling technique used to obtain a sample. The Health department randomly selects four stores from each of seven randomly selected sections of the state and checks for cleanliness. These stores are used as a representative sample og the entire state. 24. Identify the sampling technique used to obtain a sample. Joshua is collecting surveys for a quantitative reasoning class "Statistics Project" and waits outside the movie theater to ask every 10th person what their favorite movie snack is

22. Identify the sampling technique used to obtain a sample. The Health department randomly selects four stores from each of seven randomly selected sections of the state and checks for cleanliness. These stores are used as a representative sample og the entire state. 24. Identify the sampling technique used to obtain a sample. Joshua is collecting surveys for a quantitative reasoning class "Statistics Project" and waits outside the movie theater to ask every 10th person what their favorite movie snack is

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A First Course in Probability (10th Edition)

10th Edition

ISBN:9780134753119

Author:Sheldon Ross

Publisher:Sheldon Ross

Chapter1: Combinatorial Analysis

Section: Chapter Questions

Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...

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UTAS, Nizwa has received 400 Red Markers, 600 Black Markers and 1000 Blue Markers. The college store keeper wants to check 50 samples using stratified sampling. Which of the following are the correct samples? a. 25 Red Markers, 15 Black Markers, 10 Blue Markers b. 10 Red Markers, 15 Black Markers, 25 Blue Markers c. 15 Red Markers, 15 Black Markers, 20 Blue Markers d. 10 Red Markers, 25 Black Markers, 15 Blue Markers
You are the operations manager for an airline and you are considering a higher fare level for passengers in aisle seats. How many randomly selected air passengers must you survey? Assume that you want to be 99% confident that the sample percentage is within 4.5 percentage points of the true population percentage. Complete parts (a) and (b) below. a. Assume that nothing is known about the percentage of passengers who prefer aisle seats. n = 820 (Round up to the nearest integer.) b. Assume that a prior survey suggests that about 39% of air passengers prefer an aisle seat. n=0 (Round up to the nearest integer.) C
Questions number 4.43
You are the operations manager for an airline and you are considering a higher fare level for passengers in aisle seats. How many randomly selected air passengers must you survey? Assume that you want to be 95% confident that the sample percentage is within 5.5 percentage points of the true population percentage. Complete parts (a) and (b) below. a. Assume that nothing is known about the percentage of passengers who prefer aisle seats. (Round up to the nearest integer.) b. Assume that a prior survey suggests that about 33% of air passengers prefer an aisle seat. n3= (Round up to the nearest integer.)
You are the operations manager for an airline and you are considering a higher fare level for passengers in aisle seats. How many randomly selected air passengers must you survey? Assume that you want to be 90% confident that the sample percentage is within 5.5 percentage points of the true population percentage. Complete parts (a) and (b) below. a. Assume that nothing is known about the percentage of passengers who prefer aisle seats. (Round up to the nearest integer.) b. Assume that a prior survey suggests that about 38% of air passengers prefer an aisle seat. (Round up to the nearest integer.)
You want to gather some data about students at a local high school. Match the name of the sampling method with the description of corresponding situation. Situations Selecting five classroom numbers at random then surveying all the students in each of these five rooms Surveying every 3rd driver coming through a tollbooth Pulling 50 names from a hat Sampling Method a. Cluster b. Simple Random c. Systematic d. Convenience e. Stratified
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