Author: Anonymous

What procedure is used to help diagnose respiratory tract concerns? More specifically when the lower airway conditions limit the expansion of the lungs, you will enter the chest cavity and remove any excess fluid and/or air.

The self-concept that you have in mind at a given time is referred to as a ____ self-concept.

In general, prejudice is ____ and discrimination is ____.

The state education commission wants to estimate the fraction of tenth grade students that have reading skills at or below the eighth grade level. Provide answers to each of the following steps: You must show your work or explain your calculator speak.  Answers without one or the other will not be given full credit.Step 1. Suppose a sample of 269 tenth graders is drawn. Of the students sampled, 45 read at or below the eighth grade level. Using the data, estimate the proportion of tenth graders reading at or below the eighth grade level. Enter your answer as a fraction or a decimal number rounded to three decimal places.Answer: ____________________ Step 2. Suppose a sample of 269 tenth graders is drawn. Of the students sampled, 45 read at or below the eighth grade level. Using the data, construct the 80% confidence interval for the population proportion of tenth graders reading at or below the eighth grade level. Round your answers to three decimal places.Answer: Lower endpoint: _______________ Upper endpoint: _______________   Type your answers only to these questions in the box below.  Then show all work on your answer sheet.  If using a graphing calculator, the work shown on the answer sheet must show commands used.  Answers without work shown will result in the question being scored a 0.

The following measurements (in picocuries per liter) were recorded by a set of carbon monoxide detectors installed in a waste disposal facility: 861, 799, 789, 858, 800, 831 Using these measurements, construct a 99% confidence interval for the mean level of carbon monoxide present in the facility. Assume the population is approximately normal. You must show your work or explain your calculator speak.  Answers without one or the other will not be given full credit. Provide answers to each of the following steps:Step 1. Calculate the sample mean for the given sample data. Round your answer to two decimal places, if necessary.Answer: ____________________ Step 2. Calculate the sample standard deviation for the given sample data. Round your answer to two decimal places, if necessary.Answer: ____________________Step 3. Find the critical value that should be used in constructing the confidence interval. Round your answer to three decimal places.Answer: ____________________Step 4. Construct the 99% confidence interval. Round your answer to two decimal places.Answer: Lower endpoint: _______________ Upper endpoint: _______________ Type your answers only to these questions in the box below.  Then show all work on your answer sheet.  If using a graphing calculator, the work shown on the answer sheet must show commands used.  Answers without work shown will result in the question being scored a 0.

Suppose SAT Critical Reading scores are normally distributed with a mean of 404 and a standard deviation of 84. A university plans to recruit students whose scores are in the 90th    What is the minimum score required for recruitment?  Round your answer to the nearest whole number, if necessary.   Type your answer only in the box below.  Then show all work on your answer sheet.  If using a graphing calculator, the work shown on the answer sheet must show commands used.  Answers without work shown will result in the question being scored a 0.

Suppose SAT Critical Reading scores are normally distributed with a mean of 404 and a standard deviation of 84.  A university plans to recruit students whose scores are in the 95th percentile.    What is the minimum score required for recruitment?  Round your answer to the nearest whole number, if necessary. Show all work.  Use the Type your answer only in the box below.  Then show all work on your answer sheet.  If using a graphing calculator, the work shown on the answer sheet must show commands used.  Answers without work shown will result in the question being scored a 0.

Noise levels at 6 construction sites were measured in decibels yielding the following data: 135,125,124,135,121,168 Construct the 90% confidence interval for the mean noise level at such locations. Assume the population is approximately normal. You must show your work or explain your calculator speak.  Answers without one or the other will not be given full credit.   Provide answers to each of the following steps:Step 1. Calculate the sample mean for the given sample data. Round your answer to one decimal place.Answer: ____________________Step 2. Calculate the sample standard deviation for the given sample data. Round your answer to one decimal place.Answer: ____________________Step 3. Find the critical value that should be used in constructing the confidence interval. Round your answer to three decimal places.Answer: ____________________Step 4. Construct the 90% confidence interval. Round your answer to one decimal place.Answer: Lower endpoint: _______________ Upper endpoint: _______________ Type your answers only to these questions in the box below.  Then show all work on your answer sheet.  If using a graphing calculator, the work shown on the answer sheet must show commands used.  Answers without work shown will result in the question being scored a 0.

Suppose babies born in a large hospital have a mean weight of 4088 grams, and a variance of 55,696.If 128 babies are sampled at random from the hospital, what is the probability that the mean weight of the sample babies would be greater than 4132 grams? Round your answer to four decimal places. Type your answer only in the box below.  Then show all work on your answer sheet.  If using a graphing calculator, the work shown on the answer sheet must show commands used.  Answers without work shown will result in the question being scored a 0.

Susan has been on a bowling team for 14 years. After examining all of her scores over that period of time, she finds that they follow a normal distribution. Her average score is 225, with a standard deviation of 13.  If during a typical week Susan bowls 16 games, what is the probability that her average score for the week is between 220 and 228?  Type your answer only in the box below.  Then show all work on your answer sheet.  If using a graphing calculator, the work shown on the answer sheet must show commands used.  Answers without work shown will result in the question being scored a 0.