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The ages of 32 people who signed up for a one year membership at GYM last month are shown in the table below. Construct a stem-and-leaf chart for the ages of the new members.
28
37
23
33
35
21
46
30
36
42
39
41
60
29
34
32
51
55
49
61
22
24
38
52
John runs a computer software store. He counted 130 people who walked by his store in a day, 59 of whom came into the store. Of the 59, only 24 bought something in the store.
The company has evidence that its line produces %0.9 of noncorforming items. What is the probability that an item selected for inspection is classified as defective?
Drawing the standard normal curve and indicating the area representing the probability and
Suppose that four American adults are asked if they ate at table-service restaurants last week. What is the probability that all of them say yes?
The average price for a new home in a certain neighborhood is $275,000 with a standard deviation of $20,000. What is the probability that a particular home will cost between $280,000 and $300,000?
How many different combinations of the clients could be considered for inclusion into his limited schedule for that day?
A company produces calculators in batches of 64. Four out of every 100 calculators are defective. State the random variable for this situation and list its values.
Compute a 95% confidence interval for the population mean, based on the sample 25, 27, 23, 24, 25, 24 and 59. Change the number from 59 to 24 and recalculate the confidence interval.
Using the data in the Excel file Home Market Value, develop a multiple linear regression model for estimating the market value as a function of both the age and size of the house.
Distributed with a mean of $150 and standard deviation of $25. About how many of the students spend less than $100 on books?
That's a much larger sample than standard sample surveys. In spite, we cannot trust result to give good information about any clearly defined population. Explain why?
Compute the mean, variance, and standard deviation of the overseas bond yields as of March 6, 2009.
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