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Chad Imburgia

Chad I.

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The characteristics of cheek teeth (e.g., molars) can provide anthropologists with information on the dietary habits of extinct mammals. The cheek teeth of an extinct primate species were the subject of research reported in the American Journal of Physical Anthropology (Vol. 142,2010 ). A total of 18 cheek teeth extracted from skulls discovered in western Wyoming were analyzed. Each tooth was classified according to degree of wear (unworn, slight, light-moderate, moderate, moderate-heavy, or heavy). The 18 measurements are listed here. a. Identify the variable measured in the study and its type (quantitative or qualitative). b. Count the number of cheek teeth in each wear category. c. Calculate the relative frequency for each wear category. d. Construct a relative frequency bar graph for the data. e. Construct a Pareto diagram for the data. f. Identify the degree of wear category that occurred most often in the sample of 18 cheek teeth.

The characteristics of cheek teeth (e.g., molars) can provide anthropologists with information on the dietary habits of extinct mammals. The cheek teeth of an extinct primate species were the subject of research reported in the American Journal of Physical Anthropology (Vol. 142,2010 ). A total of 18 cheek teeth extracted from skulls discovered in western Wyoming were analyzed. Each tooth was classified according to degree of wear (unworn, slight, light-moderate, moderate, moderate-heavy, or heavy). The 18 measurements are listed here. a. Identify the variable measured in the study and its type (quantitative or qualitative). b. Count the number of cheek teeth in each wear category. c. Calculate the relative frequency for each wear category. d. Construct a relative frequency bar graph for the data. e. Construct a Pareto diagram for the data. f. Identify the degree of wear category that occurred most often in the sample of 18 cheek teeth.

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Lucas Finney verified

Numerade educator

In the equation, Y = 6 + 12(X), the slope value is 6. Group of answer choices True False

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Lucas Finney verified

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In regression, the variable we are trying to “explain” is referred to as Group of answer choices The slope The dependent variable The average The independent variable

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In regression, the variable we are trying to “explain” is referred to as the independent variable. Group of answer choices True False

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A correlation coefficient shows both strength and direction of a linear relationship. Group of answer choices True False

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Correlations. The following data looks at the tallest buildings in New York City. The data were taken from a Wikipedia article on the subject. The variables are HgtFt The height of the building in feet HgtMeter The height of the building in meters Floors The number of floors in the building Year The year the building was built One important point: there is a linear relationship between a measurement in feet and it meters. 1 foot equals .30480 meters ( or 1 meter equals 3.28084 feet) The Correlation Matrix (from JMP) is given below: HgtFt HgtMeter Floors YEAR HgtFt 1.0000 HgtMeter 1.0000 1.0000 Floors 0.7480 0.7481 1.0000 YEAR 0.1924 0.1930 0.0954 1.0000 There is weak relationship between the year the building was built and the height of the building. Group of answer choices True False

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Different of Two Proportions Problem. A survey was done in 2022 and again in 2022. The survey asked respondents if they were willing to opt for ads to save money on streaming. We will focus on the proportion that "would rather save $4 or $5 per month and watch ads." The survey in each year are different respondents so they represent independent random samples. The data are given below. Year # Rather Save Total 2023 337 527 2022 344 603 Express the difference as p2023 - p2022 so the difference is positive. We will test to see if the proportion increased over time and use an alpha level of .05 Based on the information given, we should not use a Pooled Proportion for our test. Group of answer choices True False

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Lucas Finney verified

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Difference of Means Test. A sample of seniors taking the SAT in Connecticut in 2015 revealed the following results for the math portion of the exam by Race (Asian versus White) Calculate the difference as Asians - Whites. We will assume equal variances. We will use an alpha level of .05. We will test to see if the two means are different from each other. Asian White Mean 594 536 Std Dev 130 107 N 22 50 What is the Degrees of Freedom for a Difference of Means test of the Math SAT scores between Asians and Whites? This will be a whole number.

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Lucas Finney verified

Numerade educator

In a difference of proportion test with alpha = .01, the critical values(s) for a one-tailed lower test is/are Group of answer choices -1.96 -2.33 -1.28 -1.645 and 1.645

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When someone is stonewalling you in a conflict, the best response is for you to escalate the intensity of your emotions and communication. When someone is stonewalling you in a conflict, the best response is for you to escalate the intensity of your emotions and communication. True False

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According to researchers who conduct attraction studies, when we see someone behave in a real face-to-face social situation (rather than just looking at a picture of the person), which quality of that person ultimately ends up being most important in determining our level of attraction to that person? According to researchers who conduct attraction studies, when we see someone behave in a real face-to-face social situation (rather than just looking at a picture of the person), which quality of that person ultimately ends up being most important in determining our level of attraction to that person? Smell Physical beauty Height to weight ratio Interpersonal skill

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