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Based on information from a large insurance company, 67% of all damage liability claims are made by single people under the age of 25. A random sample of 54 claims showed that 44 were made by single people under the age of 25. Does this indicate that the insurance claims of single people under the age of 25 is higher than the national percent reported by the large insurance company? State the null and alternate hypothesis then give the test statistic and your conclusion.
Compute the first quartile the third quartile and the interquartile range.List the five-number summary.Construct a boxplot and describe its shape.
If an executive submits an expense of $720 for a one-day stay in Moscow, should this expense be considered unusually high? Why or why not?
a point is chosen at random from the region s in the xy-plane containing all points xy such that -4 lt x lt 4 -1 lt y
A numerical error in preparing his or her income tax return. If 10000 forms are selected at random and examined. Find the probability that 6,7,8, of the forms contain an error.
If the supermarket begins each morning with a stock of 61 cartons of eggs, approximately what percentage of days will there be a surplus of eggs?
a die has half of the faces red and the other half black. the die is rolled 3 times. let the random variable x
the cost of a college education has increased at a much faster rate than costs in general over the past twenty years.
suppose that a random variable x has the probability distributionfxx 0 if x lt 0x214 if 0 greaterthanorequalto x lt
Compute the average, minimum, maximum, and standard deviation for Percentage Taxes column for all homes. Create a new worksheet and label it as Statistics.
consider the experiment of drawing two cards from a shuffled deck and then putting them back. what is the probability
A survey of 600 non-fatal accidents showed that 251 involved the use of a cell phone. Find a point estimate for p, the population proportion of accidents that involved the use of a cell phone.
Six samples of subgroup size 2 (n = 2) were collected. Determine the upper control limit (UCL) for an X-bar chart if the mean of the sample averages is 4.7 and mean of the sample ranges is 0.35
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