vey be summarized in the following table: Leaf Blower Lawn Mower Yes No Total Yes 80 78 158 No 18 26 44 Total 98 104 202 We would like to test whether there is an association between owning a lawn mower and a leaf blower. What is the observed value of the appropriate test statistic? Give answer to 3 decimal places.

Apply K-mean Clustering for the following single data set for two clusters (k=2).                  Data set = {2, 4, 9, 10, 3, 24, 38}

Q1) Inches of Rain Shown here is a frequency distribution for the number of inches of rains received in 1 year in 25 selected cities in the United States. Number Of Inches 5.5 - 20.5 65.5-80.5 80.5– 95.5 20.5 -35.5 35.5 -50.5 50.5 -65.5 Frequency 3 8 3 3 a) Find Mean, Median & Mode b) Also define the Symmetry of the distribution.

I need help with stats/2023 classify the 2 given samples as independent or dependent. sample 1: the number of home runs hit by 44 professional baseball players in their rookie season sample 2: the number of home runs hit by the same 44 professional baseball players in their final season.   choose the correct answer: A. The 2 given samples are independent because the same athletes were sampled. B. The 2 given samples are independent because the different athletes were sampled C. The 2 given samples are dependent because the same athletes were sampled. D. The 2 given samples are dependent because different athletes were sampled.

What is the most accurate interpretation of a significant correlation of rs = -.55 between annual CO2 emissions and annual average temperature (ranked from hottest year to coldest year)? Increased CO2 emissions are associated with lower annual average temperature Increased CO2 emissions are associated with higher annual average temperature Increased CO2 emissions lead to higher annual average temperature Increased CO2 emissions lead to lower annual average temperature   If we conducted a study with a small group of randomly selected first- year psychology students and found a Pearson’s r of -.39 between distance from home to university (measured in km) and class attendance, what could we say about the relationship in the population? University students who live far from their homes are less likely to attend class There is no relationship between distance between home and university with class attendance University students who live far from their homes are more likely to attend…

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State which correlation coefficient (pears, spearman, point-biased, or phi) should be used given the following information Both factors are interval or ratio scale. Both factors are dichotomous One factor is dichotomous, and the other factor is continuous Both factors are ranked

If the data normalization process is carried out on a dataset, which of the following statements is correct: a) The correlation value between variables will not change b) The covariance value between variables will not change c) The average value of each variable will not change d) The standard deviation value for each variable will not change

1.Answer by true or false by justifying your reasoning A) The analysis of data from a distribution described by two variables boils down to the study of the relationship between these two variables. B) A zero correlation between two variables assumes that there is a link between these two variables.

Fifty-four wild bears were anesthetized, and then their weights and chest sizes were measured and listed in a data set. Results are shown in the accompanying display. Is there sufficient evidence to support Correlation Results the claim that there is a linear correlation between the weights of bears and their chest sizes? When measuring an anesthetized bear, is it easier to measure chest size than weight? If so, does it appear that Correlation coeff, r: 0.959614 a measured chest size can be used to predict the weight? Use a significance level of = 0.05. Critical r: +0.2680855 P-value (two tailed): 0.000 Но: Р H1:P (Type integers or decimals. Do not round.) Identify the correlation coefficient, r. (Round to three decimal places as needed.) Identify the critical value(s). (Round to three decimal places as needed.) O A. There is one critical value at r= . B. There are two critical values at r= ± Is there sufficient evidence to support the claim that there is a linear correlation between…