Question
In: Statistics and Probability
The method of tree ring dating gave the following years A.D. for an archaeological excavation site....
The method of tree ring dating gave the following years A.D. for an archaeological excavation site. Assume that the population of x values has an approximately normal distribution.
| 1208 | 1299 | 1194 | 1292 | 1268 | 1316 | 1275 | 1317 | 1275 |
(a) Use a calculator with mean and standard deviation keys to find the sample mean year x and sample standard deviation s. (Round your answers to the nearest whole number.)
| x = | A.D. |
| s = | yr |
(b) Find a 90% confidence interval for the mean of all tree ring
dates from this archaeological site. (Round your answers to the
nearest whole number.)
| lower limit | A.D. |
| upper limit | A.D. |
Solutions
Expert Solution
(a)
Sample mean = 1272
Sample standard deviation = 44
(b)
Lower limit = 1244 A.D.
Upper limit = 1299 A.D.
orchestra answered 2 years agoRelated Solutions
The method of tree ring dating gave the following years A.D. for an archaeological excavation site....
The method of tree ring dating gave the following years A.D. for
an archaeological excavation site. Assume that the population of
x values has an approximately normal distribution.
1299
1201
1299
1320
1268
1316
1275
1317
1275
(a) Use a calculator with mean and standard deviation keys to
find the sample mean year x and sample standard deviation
s. (Round your answers to the nearest whole number.)
x =
A.D.
s =
yr
(b) Find a 90% confidence interval...
The method of tree ring dating gave the following years A.D. for an archaeological excavation site....
The method of tree ring dating gave the following years A.D.
for an archaeological excavation site. Assume that the population
of x values has an approximately normal distribution.
1215 1222 1320 1180 1268 1316 1275 1317 1275
(a) Use a calculator with mean and standard deviation keys to
find the sample mean year x and sample standard deviation s. (Round
your answers to the nearest whole number.)
x =
Incorrect: Your answer is incorrect.
A.D.
s =
Incorrect: Your answer...
The method of tree ring dating gave the following years A.D. for an archaeological excavation site....
The method of tree ring dating gave the following years A.D. for
an archaeological excavation site. Assume that the population of
x values has an approximately normal distribution.
1292
1180
1208
1236
1268
1316
1275
1317
1275
(a) Use a calculator with mean and standard deviation keys to
find the sample mean year x and sample standard deviation
s. (Round your answers to the nearest whole number.)
x =
A.D.
s =
yr
(b) Find a 90% confidence interval for...
The method of tree ring dating gave the following years A.D. for an archaeological excavation site....
The method of tree ring dating gave the following years A.D. for
an archaeological excavation site. Assume that the population of
x values has an approximately normal distribution.
1229
1236
1271
1229
1268
1316
1275
1317
1275
(a) Use a calculator with mean and standard deviation keys to
find the sample mean year x and sample standard deviation
s. (Round your answers to the nearest whole number.)
(b) Find a 90% confidence interval for the mean of all tree ring...
The method of tree ring dating gave the following years A.D. for an archaeological excavation site....
The method of tree ring dating gave the following years A.D. for
an archaeological excavation site. Assume that the population of
x values has an approximately normal distribution.
1271
1320
1229
1320
1268
1316
1275
1317
1275
(a) Use a calculator with mean and standard deviation keys to
find the sample mean year x and sample standard deviation
s. (Round your answers to the nearest whole number.)
x =
A.D.
s =
yr
(b) Find a 90% confidence interval for...
The method of tree ring dating gave the following years A.D. for an archaeological excavation site....
The method of tree ring dating gave the following years A.D. for
an archaeological excavation site. Assume that the population of
x values has an approximately normal distribution.
1264
1285
1313
1187
1268
1316
1275
1317
1275
(a) Use a calculator with mean and standard deviation keys to
find the sample mean year x and sample standard deviation
s. (Round your answers to the nearest whole number.)
x =
A.D.
s =
yr
(b) Find a 90% confidence interval for...
The method of tree ring dating gave the following years A.D. for an archaeological excavation site....
The method of tree ring dating gave the following years A.D. for
an archaeological excavation site. Assume that the population of x
values has an approximately normal distribution. 1299 1208 1215
1208 1268 1316 1275 1317 1275
(a) Use a calculator with mean and standard deviation keys to
find the sample mean year x and sample standard deviation s. (Round
your answers to the nearest whole number.)
x = A.D
. s = yr
(b) Find a 90% confidence interval...
The method of tree ring dating gave the following years A.D. for an archaeological excavation site....
The method of tree ring dating gave the following years A.D. for
an archaeological excavation site. Assume that the population of
x values has an approximately normal distribution.
1278
1180
1299
1208
1268
1316
1275
1317
1275
(a) Use a calculator with mean and standard deviation keys to
find the sample mean year x and sample standard deviation
s. (Round your answers to the nearest whole number.)
x =
A.D.
s =
yr
(b) Find a 90% confidence interval for...
The method of tree ring dating gave the following years A.D. for an archaeological excavation site....
The method of tree ring dating gave the following years A.D. for
an archaeological excavation site. Assume that the population of
x values has an approximately normal distribution.
1306
1313
1299
1222
1268
1316
1275
1317
1275
(a) Use a calculator with mean and standard deviation keys to
find the sample mean year x and sample standard deviation
s. (Round your answers to the nearest whole number.)
x =
A.D.
s =
yr
(b) Find a 90% confidence interval for...
The method of tree ring dating gave the following years A.D. for an archaeological excavation site....
The method of tree ring dating gave the following years A.D. for
an archaeological excavation site. Assume that the population of
x values has an approximately normal distribution.
1194
1306
1194
1313
1268
1316
1275
1317
1275
(a) Use a calculator with mean and standard deviation keys to
find the sample mean year x and sample standard deviation
s. (Round your answers to the nearest whole number.)
x =
A.D.
s =
yr
(b) Find a 90% confidence interval for...
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