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Look around your living space or current surroundings and find a quantitative variable for which you can collect at least 20 observations (examples: monetary amounts of the last 25 bills you received or your last 20 scores on tests and homework assignments). List the data with your response.
a. Create a five-number summary.
b. Draw a boxplot.
c. Draw your choice of a histogram, stem-and-leaf plot, or dotplot.
d. Refer to your picture in part (c) and comment on the shape and presence or absence of outliers.
e. Compute the mean and compare it to the median. Explain whether or not the relationship between them is what you would expect based on the information you discussed in part (d).
Question 1: In a certain city with a population of 1 million people, 5,000 people died last year. In the same city 10,000 were known to have cancer last year, of whom 500 died.
Using symbols state hypotheses (H 0 and H 1 ) for two-tailed test. Sketch suitable distribution and locate critical region for a = 0.05.
The adjusted R 2 was 53%.19 Carefully analyze these results and try to draw a conclu- sion about the effects of the 1985 French Banking Deregulation Act.
a suppose you conduct a significance test and decide to reject the null hypothesis ho at the alpha.05 level. if you
Let X denote the lifetime of a component, with f (x) and F(x) the pdf and cdf of X. The probability that the component fails in the interval (x, x + ?x) is approximately f(x) ? ?x.
consider a study in which 41 participants were treated with an intervention. the study reported mean body weight of 140
What is the probability that a randomly selected exam will have a score of at least 71 - What percentage of exams will have scores between 89 and 92?
1. nbspif the mean number of hours of television watched by teenagers per week is 12 with a standard deviation of 2
Muscular dystrophy is an incurable muscle-wasting disease. The most common and serious type, called DMD, is caused by a sex-linked recessive mutation. Specifically; women can be carriers but do not get the disease; a son of a carrier has probabili..
an effective way to catch salmon commercially is by gill netting. traditionally gill netters hang long monofilament
It is estimated that 55% of the freshmen entering a particular college will graduate from that college in four years. a. For a random sample of 5 entering freshmen, what is the probability that exactly 3 will graduate in four years?
the number of telephone calls coming into a businesss switchboard averages 4 calls per minute.let x be the number of
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