1. In a random sample of 200 persons of a town, 120 are found to be tea drinkers. In a random sample of 500 persons of another town, 240 are found to be tea drinkers. Is the proportion of tea drinkers in the two towns equal? Use 0.01 level of significance.
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The sex distribution of a population mean refers to the proportion of males and females within a given population. It is typically expressed as a ratio or percentage, indicating how many males and females are present. This distribution can vary widely depending on factors such as geography, culture, and age demographics. Analyzing sex distribution is important for understanding social dynamics and planning for resources and services.
The sampling distribution of the sample proportion of adults with credit card debts greater than $2000 can be described using the population proportion, which is 36% (or 0.36). For a simple random sample of 200 adults, the mean of the sampling distribution will be equal to the population proportion (0.36), and the standard error can be calculated using the formula ( \sqrt{\frac{p(1-p)}{n}} ), where ( p ) is the population proportion and ( n ) is the sample size. In this case, the standard error would be approximately ( \sqrt{\frac{0.36(0.64)}{200}} ), leading to a normal distribution centered at 0.36, assuming the sample size is sufficiently large.
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To find the proportion of a normal distribution corresponding to z-scores greater than +1.04, you can use the standard normal distribution table or a calculator. The area to the left of z = 1.04 is approximately 0.8508. Therefore, the proportion of the distribution that corresponds to z-scores greater than +1.04 is 1 - 0.8508, which is approximately 0.1492, or 14.92%.
A half.
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Age distribution of population refers to the percentage of people in different age groups within a given population. This information provides insights into the demographic structure of a society, such as the proportion of children, working-age adults, and elderly individuals. It is used to understand trends in population growth, age-related policies, and potential social and economic impacts.
A ratio of individuals with a particular phenotype to the total number of individuals in the population. Individuals with certain phenotype --------------------------------------------------- (Over) Total # of individuals within the population The distribution of traits in a population
Urban growth is the rate of growth of an urban population. It is different to urbanization which is the process by which there is an increase in proportion of a population living in places classified as urban: the movement from a rural to urban area.
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The proportion of the population that holds one opinion compared to those with opposing opinions or no opinion is referred to as the opinion ratio or distribution. It provides insight into how prevalent a particular view is within the population and can help understand the diversity of opinions on a given issue. Analyzing this ratio can be useful for decision-making and forming strategies that consider various viewpoints.
The distribution of the population according to the different types of occupations is referred to as the occupational structure. Occupations are generally classified as primary (agriculture, mining, fishing, etc.), secondary (manufacturing industry, building and construction work, etc.) and tertiary (transport, communications, banking, etc.). The proportion of people working in different activities reflects the economic development of a country. Developed nations have a high proportion of people in secondary and tertiary activities. Developing countries tend to have a higher proportion of their workforce engaged in primary activities.
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Imbalance is the state or condition of lacking balance, as in proportion or distribution.
There is no specific proportion: the answer depends on the level of significance beyond which subjects are considered to be outliers.
i THINK IT IS .05