Question 11<>Population Parameters and Sample Statistics: Determine whether the value being discussed is apopulation parameter or sample statistic:a) 20% of all vehicles sold are compact cars. Select an answerb) In a sample of 300 students who passed statistics, 70% used statistics in their future careers.Select an answerc) Southern New Hampshire University determined that 89% of online students are highly satisfied withtheir academic advisor. Select an answerd) Facebook recently tested all of their servers and found that 99% were performing as intendedSelect an answer

Population Parameters and Sample Statistics:

Answered: Population Parameters and Sample…

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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The city council of Pine Bluffs is considering increasing the number of police in an effort to reduce crime. Before making a final decision, the council asked the chief of police to survey other cities of similar size to determine the relationship between the number of police and the number of crimes reported. The chief gathered the following sample information. City Oxford Starksville Danville Athens ……….... Police 23 24 30 33 Number of Crimes 18 15 Click here for the Excel Data File 9 11 Number of crimes City Holgate Carey Whistler Woodville > Answer is complete but not entirely correct. 40.6081 X (90.0408) ► x Answer is complete and correct. 19✔ Police 24 20 19 27 a. Determine the regression equation. (Negative amounts should be indicated by a minus sign. Round your answers to 4 decimal places.) Number of Crimes 9 22 24 10 b. Estimate the number of crimes for a city with 21 police officers. (Round your answer to the nearest whole number.)
Researchers want to estimate the percentage of people who thought drinking and driving was a serious problem. Reserchers waited outside a bar to question people. They usually find 11%of bar patrons believe drinking and driving is a serious problem. a. identify the populatin of interest b. identify the sample c. identify the population parameter of interest d. identifywho if anyone was left out of the study
Determine the question (X) that converts eachsituation to Yes/No data.a) The proportion of cars that are silver.b) Voter percentage who favor candidate Jones.c) The proportion of defective items
Determine whether the following studies would best be completed using a sample or population: a. Determining the average weight of Labrador puppies. Select an answer b. Determining the average number of points per game for a famous basketball player. Select an answer c. Determining the average grade of one statistics class. Select an answer d. Determining the average number of eggs a salmon lays. Select an answer
Determine whether the underlined number is a statistic or a parameter. in a study of all 4622 professors at a college, it is found that 40% own a television.
Sierra College students enrolled in an online Elementary Statistics course were asked to participate in an anonymous onlne survey. The survey asked the students "Which type of device will you primarily use to access your online course in Canvas?". Of the 152 students who answered this question, 20 responded "a desktop computer", 121 responded "a laptop computer", 6 responded "a smartphone", and 5 responded "a tablet". The Sierra College Mathematics Department believes that less than 5% of students enrolled in an online Elementary Statistics course primarily uses a smartphone to access their online course in Canvas. Use the data collected in the survey to conduct a hypothesis testing procedure to test this belief. What conclusion should be reached according to the results of this hypothesis test?
The city council of Pine Bluffs is considering increasing the number of police in an effort to reduce crime. Before making a final decision, the council asked the chief of police to survey other cities of similar size to determine the relationship between the number of police and the number of crimes reported. The chief gathered the following sample information. City Police Number of Crimes City Police Number of Crimes Oxford 15 19 Holgate 17 10 Starksville 17 16 Carey 11 23 Danville 25 8 Whistler 9 27 Athens 28 10 Woodville 21 10 Click here for the Excel Data Filea. Determine the regression equation. (Negative amounts should be indicated by a minus sign. Round your answers to 4 decimal places.) b. Estimate the number of crimes for a city with 20 police officers. (Round your answer to the nearest whole number.)
Consider the following sets of sample data: A: 2.6, 3.8, 2.6, 4.0, 1.9, 1.8, 4.3, 2.2, 1.9, 2.0, 4.4, 4.4, 3.0, 3.8 B: $2.64, $2.18, $1.92, $2.31, $2.64, $1.40, $1.82, $1.68, $2.51, $1.29, $2.34 Step 1 of 2: For each of the above sets of sample data, calculate the coefficient of variation, CV. Round to one decimal place. Answer How to enter your answer (opens in new window) TV for Data Set A: CV for Data Set B: % %
The arm span and foot length were measured (in centimeters) for each of the 19 students in a statistics class and displayed in the scatterplot. An analysis was completed and the computer output is shown. Using the computer output, what is the predicted foot length for a student with an arm span of 160 cm? 5.79 cm 22.15 cm 29.76 cm Arm Span vs. Foot Length 29.80 cm 29 27 19 155 160 165 170 175 180 185 190 195 Foot Length (cm) 21
The set of all possible values of a sample statistic is called a A. simple random sample. B. point estimate. C. census. D. sampling distribution.
The process of using sample statistics to make conclusions about population parameters is called Select one: O a. descriptive statistics O b. statistical inference c. sample survey O d. population census

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