In statistics, what is a "state space"?
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In statistics, what is a "state space"?
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- Which statement below is true? It is possible for a distribution of scores to have two means. It is possible for a distribution of scores to have two means or two medians. It is possible for a distribution of scores to have two modes. It is possible for a distribution of scores to have two medians or two modes.Each 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 candidate| 21-34. What's the design? Read each brief report of statistical research, and identify a) whether it was an observational study or an experiment. If it was an observational study, identify (if possible) b) whether it was retrospective or prospective. c) the subjects studied and how they were selected. d) the parameter of interest. e) the nature and scope of the conclusion the study can reach. If it was an experiment, identify (if possible) b) the subjects studied. c) the factor(s) in the experiment and the number of levels for each. d) the number of treatments. e) the response variable measured. f) the design (completely randomized, blocked, or matched). g) whether it was blind (or double-blind). h) the nature and scope of the conclusion the experiment can reach. R3.3. Researchers at the Purina Pet Institute studied Labrador retrievers for evidence of a relationship between diet and longevity. At 8 weeks of age, 2 puppies of the same sex and weight were randomly assigned to one of…
- In an the researcher interacts and influences the behavior of the subjects. In an Observational Study; Observational Study Designed Experiment; Designed Experiment Designed Experiment; Observational Study Observational Study; Designed Experiment the researcher observes the subjects and makes no effort to interact or influence the subjects.Use the given minimum and maximum data entries, and the number of classes, to find the class width, the lower class limits, and the upper class limits. minimum = 20, maximum = 135, 8 classes .... . The class width is (Type a whole number.)Suppose we have a dataset containing 50 rows, one row for each state. The population of each state, measuredin millions of people, is a variable in that data set. Below is a histogram for the population data. I have attached the bar graph- I am havinng trouble discerning which axis is the state and which axid is the population count? theres only 14 on one axis and 44 on the other. Doesn't make sense for a state to have a zero population. Can you tell which is which? a) What proportion of states have a population between 6 and 10 million? what is the mean population? what is the median population?
- A ng.cengage.com/static/nb/ui/evo/index.html?deploymentld=5996522054478197896265359&elSBN=9780357131596&snapshotld=D1740686&id=894619412& CENGAGE MINDTAP Q Search this course BUSI 2305 Homework 6 (Chapter 10) - Part A 3. Tourism is extremely important to the economy of Florida. Hotel occupancy is an often-reported measure of visitor volume and visitor activity (Orlando Sentinel, May 19, 2018). Hotel occupancy data for February in two consecutive years are as follows. 4. Current Year Previous Year A-Z Occupied Rooms 1,440 1,463 Total Rooms 1,800 1,900 a. Formulate the hypothesis test that can be used to determine whether there has been an increase in the proportion of rooms occupied over the one-year period. Let pi = population proportion of rooms occupied for current year p2 = population proportion of rooms occupied for previous year id – id: °H H. : P1 – P2 - Select your answer - Select your answer - b. What is the estimated proportion of hotel rooms occupied each year (to 2…A researcher wants to study the relationship between salary and gender. She randomly selects 400400 individuals and determines their salary and gender. Can the researcher conclude that salary and gender are dependent? Income Male Female Total Below $25,000$25,000 5050 4848 9898 $25,000$25,000-$50,000$50,000 3434 3535 6969 $50,000$50,000-$75,000$75,000 6262 5656 118118 Above $75,000$75,000 5454 6161 115115 Total 200200 200200 400400 Copy Data Step 3 of 8: Find the expected value for the number of men with an income $50,000$50,000-$75,000$75,000. Round your answer to one decimal place.The table below gives the number of suicides estimated in the U.S. for a recent year by age, race (black or white), and sex. We are interested in possible relationships between age, race, and sex. We will let suicide victims be our population. Race and Sex 1-14 15-24 25-64 over 64 TOTALS white, male 210 3,360 13,610 22,050 white, female 75 585 3,385 4,930 black, male 10 460 1,065 1,670 black, female 0 45 265 330 all others TOTALS 310 4,650 18,780 29,760
- Community ecologists draw “food webs” to describe the predator and prey relationships between all organisms living in an area. A theoretical model predicts that a measure of the structure of food webs called “diet discontinuity” should be zero. Diet discontinuity is a measure of the relative numbers of predators whose prey are not ordered contiguously. Researchers have measured discontinuity scores for seven different food webs in nature. The values are given below (Cattin et al. 2004). 0.35, 0.08, 0.004, 0.08, 0.32, 0.28, 0.17 Assume that discontinuity in natural food webs has a normal distribution. Are the results consistent with the model’s prediction of a zero mean discontinuity score? Carry out an appropriate hypothesis test.A startup company's ability to gain funding is a key to success. The funds raised (in millions of dollars) by 50 startup companies appear below. 81 61 103 166 168 80 51 130 87 78 69 119 81 60 20 73 50 110 21 60 192 11 54 49 63 91 272 58 54 40 47 24 57 78 78 164 72 38 131 52 48 118 40 49 55 54 112 129 156 31 (a) Construct a stem-and-leaf display. (Enter numbers from smallest to largest separated by spaces. Enter NONE for stems with no values.) 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 (b) Comment on the display. The of the startup companies in this set have less than $90 million in venture capital. Only of the 50 have more than $150 million.In a random sample of adults surveyed recently in a country, researchers asked how important it is "to you personally" to have a high-paying job. A table reporting the percentages and the number of respondents by gender i Complete parts a and b below. shown below. Male Female 965 Count Extremely important Very important Somewhat important Not too important Not at all important 825 18% 16% 36% 35% 35% 40% 6% 9% 2% 2% a) What percentage of both males and females reported that being successful in a high-paying job was "Very important" to them personally? The percentage of both males and females who reported that being successful in a high-paying job was "Very important" to them personally is %. (Round to the nearest tenth as needed.)