A researcher conducted an Internet survey of 400 students at a particular college to estimate the average amount of money students spend on groceries per week. The data are normally distributed, with the highest weekly amount being $225 and the lowest weekly amount being $80. The sample mean is $150. What is the margin of error (ME), rounded to the nearest hundredth, for this college? Hint: where SD is the standard deviation, XH is the high value, and XL is the low value. Hint: where SD is the standard deviation and N is the sample size. a ME = ±$2.53 b ME = ±$966.67 c ME = ±$14.50 d ME = ±$2.42
A researcher conducted an Internet survey of 400 students at a particular college to estimate the average amount of money students spend on groceries per week. The data are normally distributed, with the highest weekly amount being $225 and the lowest weekly amount being $80. The sample mean is $150. What is the margin of error (ME), rounded to the nearest hundredth, for this college? Hint: where SD is the standard deviation, XH is the high value, and XL is the low value. Hint: where SD is the standard deviation and N is the sample size. a ME = ±$2.53 b ME = ±$966.67 c ME = ±$14.50 d ME = ±$2.42
Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
Problem 1RQ
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Question
A researcher conducted an Internet survey of 400 students at a particular college to estimate the average amount of money students spend on groceries per week. The data are
Hint: where SD is the standard deviation, XH is the high value, and XL is the low value.
Hint: where SD is the standard deviation and N is the
| a |
ME = ±$2.53
|
| b |
ME = ±$966.67
|
| c |
ME = ±$14.50
|
| d |
ME = ±$2.42
|
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