Answer the questions below.(a) The 9 participants in an experiment had the following reaction times (in milliseconds):770, 774, 777, 784, 788, 792, 810, 813, 819.Which measure should be used to summarize the data?MeanMedianMode(b) A reporter has recorded the rating (G, PG, PG-13, or R) of each movie played in a theater over thepast year.Which measure gives the most common rating?MeanO MedianMode(c) A bakery sells 9 types of sandwiches. Here are their calorie amounts:283, 561, 570, 572, 580, 583, 607, 610, 614.Which measure should be used to summarize the data?MeanMedianMode

“Since you have asked multiple questions, we will solve the first question for you. If you want any…

Answered: Answer the questions below. (a) The 9…

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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In a sample of 500 parts produced by a grinding machine, 396 parts were defective. A test is performed to see whether we can conclude that less than 80% of the parts produced by this machine is defective.Which of the following is the value of the test statistic? a. -0.45 b. -0.22 c. 0.36 d. 0.45 e. -0.36
Which one would be the answer?
A sample of students in a university café was asked the following questions. Identify the type of data for each question. a. What is your favorite flavor of ice cream?b. How many times a month you eat ice cream?c. Do you have children under the age of 10 living in your house?d. Indicate your level of satisfaction with the food quality (very satisfied; moderately satisfied; neutral; moderately dissatisfied; very dissatisfied).
Answer the questions below. (a) As part of the U.S. Census, the number of children is reported for each family in the U.S. Which measure gives the most common number of children for a U.S. family? O Mean Median O Mode (b) At a certain company, the 9 employees have the following weekly salaries: S800, S810, S820, S840, S850, S900, S940, S970, S980. Which measure should be used to summarize the data? O Median O Mode O Mean $23, S51, $57, S58, S60, S62, S63, S64, S65. Which measure should be used to summarize the data? (c) The 9 members of the dance team each bought new shoes. Here are the prices they paid: O Median O Mode O Mean
A contributor for the local newspaper is writing an article for the weekly fitness section. To prepare for the story, she conducts a study to compare the exercise habits of people who exercise in the morning to the exercise habits of people who work out in the afternoon or evening. She selects three different health centers from which to draw her samples. The 6060 people she sampled who work out in the morning have a mean of 3.33.3 hours of exercise each week. The 4747 people surveyed who exercise in the afternoon or evening have a mean of 3.43.4 hours of exercise each week. Assume that the weekly exercise times have a population standard deviation of 0.40.4 hours for people who exercise in the morning and 0.70.7 hours for people who exercise in the afternoon or evening. Let Population 1 be people who exercise in the morning and Population 2 be people who exercise in the afternoon or evening. Step 1 of 2 : Construct a 99%99% confidence interval for the true difference…
Suppose that a polling company surveyed 600 people about how much time they spend watching television each day. The results of this survey were compiled and used to create this relative frequency histogram. Assume that all percentages shown in the histogram are whole numbers. Each of the bars in this histogram includes only the left endpoint of the class except for the last bar, which also includes the right endpoint. What percentage of respondents said that they watch television at least six hours per day? How many respondents said that they watch television between three and five hours per day?
A randomly sampled group of patients at a major U.S. regional hospital became part of a nutrition study on dietary habits. Part of the study consisted of a 50-question survey asking about types of foods consumed. Each question was scored on a scale from one (most unhealthy behavior) to five (most healthy behavior). The answers were summed and averaged. The population of interest is the patients at the regional hospital. A prior survey of patients had found the mean score for the population of patients to be μ=2.9 After careful review of these data, the hospital nutritionist decided that patients could benefit from nutrition education. The current survey was implemented after patients were subjected to this education, and it produced the following sample statistics for the 15 patients sampled: x¯=3.5 and s=1.2 We would like to know if the education improved nutrition behavior. We test the hypotheses H0:μ=2.9 versus Ha:μ>2.9. The tt test to be used has the test statistic: Answer:
A contributor for the local newspaper is writing an article for the weekly fitness section. To prepare for the story, she conducts a study to compare the exercise habits of people who exercise in the morning to the exercise habits of people who work out in the afternoon or evening. She selects three different health centers from which to draw her samples. The 57 people she sampled who work out in the morning have a mean of 4.8 hours of exercise each week. The 56 people surveyed who exercise in the afternoon or evening have a mean of 4.2 hours of exercise each week. Assume that the weekly exercise times have a population standard deviation of 0.8 hours for people who exercise in the morning and 0.3 hours for people who exercise in the afternoon or evening. Let Population 1 be people who exercise in the morning and Population 2 be people who exercise in the afternoon or evening. Step 1 of 2 : Construct a 95% confidence interval for the true difference between the mean amounts…
A sample of students involved in laboratory accidents was categorized by age. The results appear as: Find the median score
Sample # 1 and has been provided in the second screenshot (hand written)
A sample of students in a university café was asked the following questions. Identify the type of data for each question. c. Do you have children under the age of 10 living in your house?d. Indicate your level of satisfaction with the food quality (very satisfied; moderately satisfied; neutral; moderately dissatisfied; very dissatisfied).
Hospitals In a study of births in New York State, data were collected from four hospitals coded as follows: (1) Albany Medical Center; (1438) Bellevue Hospital Center; (66) Olean General Hospital; (413) Strong Memorial Hospital. Does it make sense to calculate the average (mean) of the numbers 1, 1438, 66, and 413?

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