In a distribution skewed to the right: select one:

Atlanta area animal shelters euthanize more animals per year than most other major city shelters. The following stem-and-leaf display shows the number of homeless cats and dogs that had to be euthanized each year in the Atlanta area for the period 1985-2004. Describe the distribution (shape, center, spread, unusual features). Choose the best answer for the question above: a. The distribution of the number of cats and dogs that were euthanized is unimodal, ranging from 81,100 to 90,100 euthanized. The center of the distribution is at around 85,500. b. The distribution of the number of cats and dogs that were euthanized is skewed to the right, and has several modes, with gaps in between. One mode is clustered between 87,000 and 90,000 euthanized, a second mode at 84,000, and a third mode with a cluster between 81,000 and 82,000.   c.The distribution of the number of cats and dogs that were euthanized is bimodal. The upper cluster is between 89,000 and 90,000 euthanized, with a center at…

c. Age of first heart attack - The horizontal axis is age. The vertical axis is frequency (number of people who had their first heart attack at that age). The population is people in the US who have had at least one heart attack. Shape of distribution: uniform skewed left skewed right symmetric Justification:

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A. Find the proportion runners with the time less than 160 minutes? Show work B. Find the proportion of times 201 minutes or 209 minutes ? Show work C. Describe the shape of the distribution? Identify the class that contains the 50th percentile. is this a typical time ?identify the runners in the 50th percentile. Show work

The average final exam score for the statistics course is 82%. A professor wants to see if the average final exam score for students who are given colored pens on the first day of class is different. The final exam scores for the 14 randomly selected students who were given the colored pens are shown below. Assume that the distribution of the population is normal. 90, 78, 82, 59, 67, 71, 64, 78, 67, 57, 79, 86, 66, 56 What can be concluded at the the αα = 0.05 level of significance level of significance?  For this study, we should use    (t-test for a population mean,  z-test for a population proportion) The null and alternative hypotheses would be:       H0: (symbol) (symbol) ____              H1: (symbol) (symbol) ____               The test statistic (?,t,z) = ____  (please show your answer to 3 decimal places.) The p-value =  (Please show your answer to 4 decimal places.) The p-value is (symbol)  αα Based on this, we should  (accept, reject, fail to reject) the null hypothesis.…

Q6. Select the best response. The sampling distribution of the mean will be approximately Normaleven when the population is not exactly Normal as long as the sample is: A. medium B. large C. small

The average final exam score for the statistics course is 74%. A professor wants to see if the average final exam score for students who are given colored pens on the first day of class is different. The final exam scores for the 14 randomly selected students who were given the colored pens are shown below. Assume that the distribution of the population is normal. 71, 72, 53, 61, 75, 55, 75, 74, 58, 50, 71, 84, 76, 53 What can be concluded at the the αα = 0.10 level of significance level of significance? The null and alternative hypotheses would be:       H0: μ = ______________ H1: μ ≠ ______________ The test statistic t= ________________(please show your answer to 3 decimal places.) The p-value = _______________________    (Please show your answer to 4 decimal places.)

Describe the distribution given the following stem and leaf plot: 0| 2 5 1| 33 2|0 1 3| 11 4| 27 symmetrical skewed left uniform skewed right