Question
In: Statistics and Probability
The world's smallest mammal is the bumblebee bat. The mean weight of 100 randomly selected bumblebee...
The world's smallest mammal is the bumblebee bat. The mean weight of 100 randomly selected bumblebee bats is 1.659 grams, with a standard deviation of 0.264 grams.
Part 2 Dr. Clifford Jones claims that the mean weight of bumblebee bats is 1.7 grams. We are interested in whether it's less than he claims. Using the t-distribution technique, is there evidence that bumblebee bats weight less on average than he claims, at each of the following levels?
The degrees of freedom are df =
The test-statistic t = (positive version of t, three places after decimal) =
Solutions
Expert Solution
Conclusion: There is sufficient evidence to support the claims i.e. there is no evidence that bumblebee bats weight less on average than he claims.
orchestra answered 2 years agoRelated Solutions
The world's smallest mammal is the bumblebee bat. The mean weight of 100 randomly selected bumblebee...
The world's smallest mammal is the bumblebee bat. The mean
weight of 100 randomly selected bumblebee bats is 1.659 grams, with
a standard deviation of 0.264 grams.
Find a 99.9% confidence interval for the mean weight of all
bumblebee bats at the following confidence levels (two places after
decimal): (WebAssign will check your answer for the correct number
of significant figures. , WebAssign will check your answer for the
correct number of significant figures. )
Find a 99% confidence interval...
The world's smallest mammal is the bumblebee bat. The mean weight of 50 randomly selected bumblebee...
The world's smallest mammal is the bumblebee bat. The mean
weight of 50 randomly selected bumblebee bats is 1.659 grams, with
a standard deviation of 0.264 grams.
a) a 99.9% confidence interval for the mean weight of all bumblebee
bats at the following confidence levels (two places after
decimal):
( , )
b) Find a 99% confidence interval for the mean weight of all
bumblebee bats at the following confidence levels (two places after
decimal):
( , )
c) Find...
The world's smallest mammal is the bumblebee bat. The mean weight of 40 randomly selected bumblebee...
The world's smallest mammal is the bumblebee bat. The mean
weight of 40 randomly selected bumblebee bats is 1.659 grams, with
a standard deviation of 0.264 grams.
Find a 99.9% confidence interval for the mean weight of all
bumblebee bats at the following confidence levels (two places after
decimal):
Find a 99% confidence interval for the mean weight of all
bumblebee bats at the following confidence levels (two places after
decimal):
Find a 95% confidence interval for the mean weight...
Part 1 The world's smallest mammal is the bumblebee bat. The mean weight of 60 randomly...
Part 1 The world's smallest mammal is the bumblebee bat. The
mean weight of 60 randomly selected bumblebee bats is 1.659 grams,
with a standard deviation of 0.264 grams. Find a 99.9% confidence
interval for the mean weight of all bumblebee bats at the following
confidence levels (two places after decimal): (WebAssign will check
your answer for the correct number of significant figures. ,
WebAssign will check your answer for the correct number of
significant figures. ) Find a 99%...
The world's smallest mammal is the bumblebee bat, also known as the kitti's hog-nosed bat. Such...
The world's smallest mammal is the bumblebee bat, also known as
the kitti's hog-nosed bat. Such bats are roughly the size of a
large bumblebee. Listed below are weights (in grams) from a sample
of these bats:
1.7, 1.6, 1.5, 2.0, 2.3, 1.6, 1.6, 1.8, 1.5, 1.7,
2.3, 1.3, 1.5, 1.6, 2.0
(a) Use the sample data to construct a 95% confidence interval
of the mean weight and state the margin of error (E).
(b) Using a 0.05 significance level...
The world's smallest mammal is the bumblebee bat, also known as the kitti's hog-nosed bat. Such...
The world's smallest mammal is the bumblebee bat, also known as
the kitti's hog-nosed bat. Such bats are roughly the size of a
large bumblebee. Listed below are weights (in grams) from a sample
of these bats:
1.7, 1.6, 1.5, 2.0, 2.3, 1.6, 1.6, 1.8, 1.5, 1.7,
2.0, 1.4, 2.6, 1.7, 1.6
(a) Use the sample data to construct a 95% confidence interval
of the mean weight and state the margin of error (E).
(b) Using a 0.01 significance level...
The world's smallest mammal is the bumblebee bat, also known as the kitti's hog-nosed bat. Such...
The world's smallest mammal is the bumblebee bat, also known as
the kitti's hog-nosed bat. Such bats are roughly the size of a
large bumblebee. Listed below are weights (in grams) from a sample
of these bats: 1.7, 1.6, 1.5, 2.0, 2.3, 1.6, 1.6, 1.8, 1.5, 1.7,
2.0, 1.4, 2.6, 1.7, 1.6
1. Use the sample data to construct a 95% confidence interval of
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2. Using a 0.01 significance level...
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