1) Does this graph represent observations or hypotheses? Why?
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- Give 3 conclusions about this graphEach DQ post must contain at least one citation from a source in support of your assertions, assumptions, opinions, or conclusions. This may be from your textbook, a source from the LIRN library, or another credible, i.e., academic source. 2. Which of the following can be considered (mathematically) interval data? a. Country of origin for a group of immigrants (Nigeria, Colombia, Italy, Japan, etc.) b. Total percentage of Nigerian immigrants c. A four-point scale of support for a tax increase (Not supportive, Somewhat supportive, Supportive, Very supportive) asked of survey respondents d. Total PAC contributions received by each congressional candidate4. In a survey of families in which both parents work, one of the questions asked was, “Have you refused a job, promotion, or transfer because it would mean less time with your family?" 29% of the 205 men asked this question responded yes, while 24% of the 211 women asked responded Test the claim that a greater proportion of men have refused a job, promotion, or transfer yes. because it would mean less time with their family.
- 44 .I've posted an image of the questionCise Science Ap... Program: Exercise S... E Connect IMATH MATH 1342 Spring 2021-. Elementary Statistics Enhancad, 3rd Ed. Logout Welcome, Daniel Ekema! Hosted by ALEKS Corp Test 3 (Chapters 8-9, 12.1) eBook DE Help ? 1. 21 4 7. 10 11 12 13 14 15 16 17 Question 2 of 17 (1 point) Attempt 1 of 1 View question in a popup Ở 1h 22m Remaining 8.1Section Exercise 44 How many computers? In a simple random sample of 180 households, the sample mean number of personal computers was 1.03. Assume the population standard deviation is o = 0.34. Part 1 of 4 (a) Construct a 99.5% confidence interval for the mean numb decimal places. of personal computers. Round the answer to at least two A 99.5% confidence interval for the mean number of personal computers isanna wants to investigate whether there is a relation between the hair- and eye-color of the residents of san pablo. He recorded the hair- and eye-color of 84 residents in san pablo, the results are shown in table 1. Next to it table 2 is shown and a large part of table 3 is shown below, but one value is missing. anna wants to conduct a chi-squared test for contingency tables in order to test his theory. Which of the following claims is correct? Please explain Brown Blue Gray Green Brown Blue Gray Green Black 3 1 Black 5.54 5.36 2.50 1.61 Brown 17 8 4 Brownt 14.02 13.57 6.33 4.07 Red 4 2 Red 3.69 3.57 1.67 1.07 Blonde 1 16 Blonde 7.75 7.50 3.50 2.25 Tafla 1: Observed frequency Tafla 2: Expected frequency Brown Blue Gray Green Black 2.17 1.04 0.10 0.23 Brownt 0.6 0.44 0.00 Red 0.03 0.69 0.07 0.80 Blonde 9.63 0.64 0.03 Tafla 3: Contribution to test statistic 1. anna rejects the null hypothesis and claims that there is a relationship between hair- and eye color of the residents of san…There is a correlation between ice cream sales and crime rates. What can we conclude from this? A) Ice cream leads to more criminality B) Committing a crime makes an individual want ice cream C) Criminality is a sufficient, but not necessary, condition for ice cream sales D) There is likely a spurious relationship between ice cream sales and crime rate10) An airline recorded the number of on-time arrivals for a sample of 100 flights each day. The boxplot below summarizes the records data for one year. 70 80 90 100 Number of On-Time Arrivals Based on the boxplot, which of the following statements must be true? (A) The range of the number of on-time arrivals is greater than 90. (B) The interquartile range of the number of on-time arrivals is 22. (C) The number of days that had at least 80 on-time arrivals is greater than the number of days that had at most 76 on-time arrivals. (D) The number of days that had from 76 to 80 on-time arrivals is equal arrivals. (E) The difference between the median and the lower quartile for the number of on-time arrivals is less than 2. the number of days that had at 76 on-time 11) Which of the following can outliers affect significantly? I. Mean II. Median III. Standard deviation IV. Range V. Interquartile range (A) I, III, and V (B) II and IV (C) I and V (D) I, III, and IV (E) None of these choices…Planets (more or less) On August 24, 2006, the Inter-national Astronomical Union voted that Pluto is not a planet. Some members of the public have been reluctantto accept that decision. Let’s look at some of the data.(We’ll see more in the next chapter.) Is there any pattern to the locations of the planets? The table shows the aver-age distance of each of the traditional nine planets from the sun.a) Make a scatterplot and describe the association.(Remember: direction, form, and strength!)b) Why would you not want to talk about the correlationbetween a planet’s Position and Distance from thesun?c) Make a scatterplot showing the logarithm ofDistance vs. Position. What is better about thisscatterplot?16% of workers got their job through internet resume sites. Express the null and alternative hypotheses in symbolic form for this claim (enter as a percentage).5. In recent years there has been a great deal of research demonstrating gender discrimination in science, technology, engineering and math (STEM) fields. In one experiment, for example, faculty members viewed an application for a laboratory manager position. The applications were identical except that half had a traditionally male name (John) and half had a traditionally female name (Jennifer). In addition, half of the faculty participants were from STEM fields and half were from non-STEM fields. The faculty were asked to rate the competence of the applicants on a 6-point scale, with 1 indicating a lower rating. Group means are presented below, along with an incomplete summary table. After completing the table, write a conclusion about the outcome of the experiment. Source Gender of applicant Male Female Between Treatments Gender of applicant Discipline of rater A x B interaction Within treatments Total SS 320 80 576 Discipline of Faculty Rater STEM M = 4.80 M = 4.02 df MS 20 1.25…Chapter 11 2. Directions: Show all your work. Indicate clearly the methods you use, because you will be graded on the correctness of your methods as well as on the accuracy of your results and explanation. A random sample of 200 students was selected from a large college in the United States. Each selected student was asked to give his or her opinion about the following statement. "The most important quality of a person who aspires to be the President of the United States is a knowledge of foreign affairs." Each response was recorded in one of five categories. The gender of each selected student was noted. The data are summarized in the table below. Page 2 of 4 Response Category Strongly Somewhat Disagree Male 10 Disagree 15 Neither Agree nor Disagree Somewhat Strongly Agree Agree 15 25 25 Female 20 25 25 25 15 Is there sufficient evidence to indicate that the response is dependent on gender? Provide statistical evidence to support your conclusion. AP StatisticsSEE MORE QUESTIONS
