Please read the following prompt, analyze the following graph, and complete question 6.a A concern in allowing the tinting of car front side windows is that tasks performed through these windows often require the rapid detection of low-contrast, unillumitated targets. If the tinting interferes with detection of targets then road safety may be compromised.A random sample of 182 US adults was selected to participate in a study. Participants were randomly assigned to drive a car with a predetermineddegree of tinting on the front side windows of the car (none: no window tinting, low: low window tinting, and high: high window tinting). For eachparticipant, the inspection time was recorded (inspection time is defined as the time required to perform a simple discrimination task through thetreated windows (in milliseconds)). Many variables were recorded for each participant, however we will focus our attention on the following variables:1.Tint (degree of window tinting: none= no window tinting, low= low window tinting, high= high window tinting)2.Inspect (inspection time (milliseconds)The primary study question is to use these results to investigate the effect of the degree of window tinting on the inspection time, on average.The boxplot shows the results of the study.Boxplot of inspection time by degree of tinting by MB8ㅇ8.ㅇㅇ ㅇ0o000 o007Inspection Time (milliseconds) highlownoneDegree of Window TintingQuestion 6 Subquestions6.aYour Task:You have been hired to write a short summary that looks at these data in appropriate ways to help address the primary study question.Be sure to comment on the following itemsThe type of experiment design that was conductedFor each of the two variables of interest (tint and inspect) provide the type and the role that they each play in the experiment.Based on the graphical display(s) produced, describe the effect that the degree of window tinting has on inspection time, on average.No answer entered. Click above to enter an answer.

Boxplot are used in comparing distributions as they also indicate the spread of the data.

concern in allowing the tinting of car front side windows is that tasks perform ntrast, unillumitated targets. If the tinting interferes with detection of targets random sample of 182 US adults was selected to participate in a study. Par gree of tinting on the front side windows of the car (none: no window tinting rticipant, the inspection time was recorded (inspection time is defined as th ated windows (in milliseconds)). Many variables were recorded for each par Tint (degree of window tinting: none= no window tinting, low= low wind Inspect (inspection time (milliseconds) e primary study question is to use these results to investigate the effect of

concern in allowing the tinting of car front side windows is that tasks perform ntrast, unillumitated targets. If the tinting interferes with detection of targets random sample of 182 US adults was selected to participate in a study. Par gree of tinting on the front side windows of the car (none: no window tinting rticipant, the inspection time was recorded (inspection time is defined as th ated windows (in milliseconds)). Many variables were recorded for each par Tint (degree of window tinting: none= no window tinting, low= low wind Inspect (inspection time (milliseconds) e primary study question is to use these results to investigate the effect of

Holt Mcdougal Larson Pre-algebra: Student Edition 2012

1st Edition

ISBN:9780547587776

Author:HOLT MCDOUGAL

Publisher:HOLT MCDOUGAL

Chapter11: Data Analysis And Probability

Section: Chapter Questions

Problem 8CR

See similar textbooks

Similar questions

A random sample of 16 housewives indicates that 11 prefer brand A and 5 prefer brand B. Does the above data truly reflect a preference for brand A? Test this at level 0.02
The percentage of 12- to 17-year-olds who reported talking at least once in the past year with their parents about the dangers of drug, tobacco, or alcohol is 60% nationally. A state youth council believes this proportion is higher in their state, where there has been an intense media campaign about this issue. A survey of randomly chosen students from across the state shows 1032 of 1642 students reporting they are having these conversations with their parents. Use an alpha = .5
A sample of men and women who had passed their driver's test either the first time or the second time were surveyed, with the following results: Results of the driving testGender First time Second timeMen 126 211Women 135 178a) Do these data suggest that there is a relationship between gender and the passing of their driver’s test from which the present sample was drawn? Let alpha=.05
A study was performed on 200 elementary school students to investigate whether regular Vitamin A supplementation was effective in preventing colds during the month of March. 100 were randomized to receive daily Vitamin A supplements during the month of March, and 100 students were randomized to a placebo group (and did not receive Vitamin A) during the same month. The number of students getting at least one cold in March was computed in the two groups, and the results are given in the following 2 X 2 table. Using a 5% level of significance determine whether there is an association between Vitamin A supplementation and prevention of Common Cold ColdNo Cold Vitamin A1585100 Placebo2575100 40160200
In a survey of 460 drivers from the South, 397 wear a seat belt. In a survey of 340 drivers from the Northeast, 281 wear a seat belt. At alpha equals 0.06 , can you support the claim that the proportion of drivers who wear seat belts is greater in the South than in the Northeast? Assume the random samples are independent. Complete parts (a) through (e).
A random sample of 50 suspension helmets used by motorcycle riders and automobile race-car drivers was subjected to an impact test, and on 18 of these helmets some damage was observed.
A consumer advocacy group wanted to study whether different airline carriers differed in terms of their delayed flights. In particular, the researchers were interested in the relationship between p1, the proportion of Alpha Airlines flights that were delayed at least 15 minutes, and p2, the proportion of Beta Airlines flights that were delayed at least 15 minutes. A random sample of 1,000 Alpha flights and a separate random sample of 1,000 Beta flights found that 67 of the Alpha fights and 160 of the Beta flights were delayed at least 15 minutes. The conditions for inference were checked and verified. Does this set of samples provide strong evidence that Alpha Airlines has a smaller proportion of flights that are delayed at least 15 minutes than Beta Airlines, at the α = 0.05 significance level? Find the z-table here. A. The test statistic is z = –6.56 and the P-value ≈ 0. Since the P-value ≈ 0 < 0.05, there is not sufficient evidence that Alpha Airlines has fewer delayed…
Suppose that in a study of 35 million HPV shots examined, the shots were followed in time by 14,000 serious ailments and 32 confirmed deaths. However, suppose in examining a randomly selected control group of 35 million non-vaccinated people of the same age at a particular time A, 0.0413% developed a serious ailment soon after time A, and 0.000089% died soon after time A. What does the comparison of two groups tell us? What are the percentages in the vaccinated group (serious ailments and confirmed deaths), and how to they compare to the nonvaccinated group? Hint: compute the percentages for serious ailments (14,000/35,000,000) and confirmed deaths (32/35,000,000) for the vaccinated group. Compare with the control group. Notice % above. (0,0413% and 0.000089%) Answer here. What can we conclude with high probability, if this comparison between vaccinated and non-vaccinated groups was done many times with the same basic results? Answer here. Can we absolutely rule out that the…
31% of all pygmy softshell tortoises have stripes on their shells. A herpetologist in Cititon collects a sample of 28 pygmy softshell tortoises and finds that 8 of them have stripes on their shells. Is there enough evidence to conclude, at a significance of alpha = 0.05, that the proportion of pygmy softshell tortoises in Cititon with stripes on their shells is less than 31%? What is the claim? What is the null hypothesis? What is the alternative hypothesis? What is the test statistic? What is/are the critical value(s)? Do we reject the null hypothesis? What conclusion do we draw? What is the P-value for the problem above?
A researcher randomly assigns college freshmen to either of two experimental conditions. Because both groups consist of college freshmen, someone claims that it is appropriate to use a t test for the two related samples. Comments?
When companies are designing a new product, one of the steps typically taken is to see how potential buyers react to a picture or prototype of the proposed product. The product-development team for a notebook computer company has shown picture A to a large sample of potential buyers and picture B to another, asking each person to indicate what they "would expect to pay" for such a product. The data resulting from the two pictures are provided in file (sheet 6). Using the 0.05 level of significance, determine whether the prototypes might not really differ in terms of the price that potential buyers would expect to pay. Sheet 6 ComputerA ComputerB 3 317 2 965 2 680 3 083 3 286 3 137 2 859 2 950 2 693 3 161 2 945 2 918 2 908 3 158 3 193 3 082 3 240 2 903 3 040 3 103…
Adding computerized medical images to a database promises to provide great resources for physicians. However, there are other methods of obtaining such information, so the issue of efficiency of access needs to be investigated. An article reported on an experiment in which 13 computer-proficient medical professionals were timed both while retrieving an image from a library of slides and while retrieving the same image from a computer database with a Web front end. Subject 1 2 3 4 5 6 7 8 9 10 11 12 13 Slide 31 34 40 25 20 29 35 63 40 51 26 41 32 Digital 24 15 16 14 10 19 6 15 15 12 10 18 18 Difference 7 19 24 11 10 10 29 48 25 39 16 23 14 Estimate the difference between true average times for the two types of retrieval in a way that conveys information about precision and reliability. (Use μslide − μdigital. Use a 95% confidence level. Round your answers to two decimal places.) ( _ , _ )