227 Answered Questions for the topic Stats

03/18/21

Find the standard​ deviation, s, of sample data summarized in the frequency distribution table given below.
Find the standard​ deviation, s, of sample data summarized in the frequency distribution table given below.Interval30​-3940​-4950​-5960​-6970​-7980​-89 Frequency3233920104 Standard deviation=... more
Follows • 1
Expert Answers •1

03/18/21

Find the standard​ deviation, s, of sample data summarized in the frequency distribution table given below.
Find the standard​ deviation, s, of sample data summarized in the frequency distribution table given below.Interval30​-3940​-4950​-5960​-6970​-7980​-89 Frequency3233920104 Standard deviation=... more
Follows • 1
Expert Answers •1

03/18/21

In a recent year the magnitudes​ (Richter scale) of​ 10,594 earthquakes were recorded. The mean is 1.224 and the standard deviation is 0.56. Consider the magnitudes that are unusual.
In a recent year the magnitudes​ (Richter scale) of​ 10,594 earthquakes were recorded. The mean is 1.224 and the standard deviation is 0.56. Consider the magnitudes that are unusual. What are the... more
Follows • 1
Expert Answers •1

03/18/21

In a recent year the magnitudes​ (Richter scale) of​ 10,594 earthquakes were recorded. The mean is 1.224 and the standard deviation is 0.56. Consider the magnitudes that are unusual.
In a recent year the magnitudes​ (Richter scale) of​ 10,594 earthquakes were recorded. The mean is 1.224 and the standard deviation is 0.56. Consider the magnitudes that are unusual. What are the... more
Follows • 1
Expert Answers •1

03/18/21

What are the IQ scores that separate the unusual IQ scores from those that are​ usual? (Consider a value to be unusual if its z score is less than −2 or greater than​ 2.)
IQ scores are measured with a test designed so that the mean is 97 and the standard deviation is 16. Consider the group of IQ scores that are unusual. What are the z scores that separate the... more
Follows • 1
Expert Answers •1

03/18/21

What are the IQ scores that separate the unusual IQ scores from those that are​ usual? (Consider a value to be unusual if its z score is less than −2 or greater than​ 2.)
IQ scores are measured with a test designed so that the mean is 97 and the standard deviation is 16. Consider the group of IQ scores that are unusual. What are the z scores that separate the... more
Follows • 1
Expert Answers •1

03/18/21

Does the range rule of thumb produce an acceptable​ approximation? Suppose a researcher deems the approximation as acceptable if it has an error less than​ 15%.
Below are the range and standard deviation for a set of data. Use the range rule of thumb and compare it to the standard deviation listed below. Does the range rule of thumb produce an acceptable​... more
Follows • 1
Expert Answers •1

03/18/21

Does the range rule of thumb produce an acceptable​ approximation? Suppose a researcher deems the approximation as acceptable if it has an error less than​ 15%.
Below are the range and standard deviation for a set of data. Use the range rule of thumb and compare it to the standard deviation listed below. Does the range rule of thumb produce an acceptable​... more
Follows • 1
Expert Answers •1

03/18/21

Does the range rule of thumb produce an acceptable​ approximation? Suppose a researcher deems the approximation as acceptable if it has an error less than​ 15%.
Below are the range and standard deviation for a set of data. Use the range rule of thumb and compare it to the standard deviation listed below. Does the range rule of thumb produce an acceptable​... more
Follows • 1
Expert Answers •1

03/18/21

Does the range rule of thumb produce an acceptable​ approximation? Suppose a researcher deems the approximation as acceptable if it has an error less than​ 15%.
Below are the range and standard deviation for a set of data. Use the range rule of thumb and compare it to the standard deviation listed below. Does the range rule of thumb produce an acceptable​... more
Follows • 1
Expert Answers •1

03/18/21

Does the range rule of thumb produce an acceptable​ approximation? Suppose a researcher deems the approximation as acceptable if it has an error less than​ 15%.
Below are the range and standard deviation for a set of data. Use the range rule of thumb and compare it to the standard deviation listed below. Does the range rule of thumb produce an acceptable​... more
Follows • 1
Expert Answers •1

03/18/21

Does the range rule of thumb produce an acceptable​ approximation? Suppose a researcher deems the approximation as acceptable if it has an error less than​ 15%.
Below are the range and standard deviation for a set of data. Use the range rule of thumb and compare it to the standard deviation listed below. Does the range rule of thumb produce an acceptable​... more
Follows • 1
Expert Answers •1

03/18/21

A certain group of test subjects had pulse rates with a mean of 80.1 beats per minute and a standard deviation of 10.5 beats per minute.
A certain group of test subjects had pulse rates with a mean of 80.1 beats per minute and a standard deviation of 10.5 beats per minute. Would it be unusual for one of the test subjects to have a... more
Follows • 1
Expert Answers •1

03/18/21

A certain group of test subjects had pulse rates with a mean of 80.1 beats per minute and a standard deviation of 10.5 beats per minute.
A certain group of test subjects had pulse rates with a mean of 80.1 beats per minute and a standard deviation of 10.5 beats per minute. Would it be unusual for one of the test subjects to have a... more
Follows • 1
Expert Answers •1

03/18/21

Cans of regular soda have volumes with a mean of 13.41 oz and a standard deviation of 0.12 oz. Is it unusual for a can to contain 13.49 oz of​ soda?
Cans of regular soda have volumes with a mean of 13.41 oz and a standard deviation of 0.12 oz. Is it unusual for a can to contain 13.49 oz of​ soda?Maximum​ "usual" value= ______ oz​(Type an... more
Follows • 1
Expert Answers •1
Stats Statistics

03/15/21

In a recent year the magnitudes​ (Richter scale) of​ 10,594 earthquakes were recorded. The mean is 1.224 and the standard deviation is 0.56. Consider the magnitudes that are unusual.

In a recent year the magnitudes​ (Richter scale) of​ 10,594 earthquakes were recorded. The mean is 1.224 and the standard deviation is 0.56. Consider the magnitudes that are unusual. What are the... more
Follows • 1
Expert Answers •1
Stats Statistics

03/15/21

Cans of regular soda have volumes with a mean of 13.41 oz and a standard deviation of 0.12 oz. Is it unusual for a can to contain 13.49 oz of​ soda?
Cans of regular soda have volumes with a mean of 13.41 oz and a standard deviation of 0.12 oz. Is it unusual for a can to contain 13.49 oz of​ soda?Minimum​ "usual" value= _____ oz
Follows • 1
Expert Answers •1
Stats Statistics

03/15/21

Cans of regular soda have volumes with a mean of 13.41 oz and a standard deviation of 0.12 oz. Is it unusual for a can to contain 13.49 oz of​ soda?
Cans of regular soda have volumes with a mean of 13.41 oz and a standard deviation of 0.12 oz. Is it unusual for a can to contain 13.49 oz of​ soda?Minimum​ "usual" value= _____ oz
Follows • 1
Expert Answers •2
Stats Statistics

03/15/21

Minimum​ "usual" value= ________ beats per minute ​(Type an integer or a​ decimal.)
A certain group of test subjects had pulse rates with a mean of 80.1 beats per minute and a standard deviation of 10.5 beats per minute. Would it be unusual for one of the test subjects to have a... more
Follows • 1
Expert Answers •1

03/15/21

The estimated standard deviation is ________.
Below are the range and standard deviation for a set of data. Use the range rule of thumb and compare it to the standard deviation listed below. Does the range rule of thumb produce an... more
Follows • 1
Expert Answers •1

01/29/21

Can you interpret a confidence interval without knowing the population mean?
If we don't know the population mean, could we still make a precise interpretation of the confidence interval? For example, would we still be able to say that there is a 90% chance that the... more
Follows • 1
Expert Answers •1

12/05/20

Research statistics question
I’m a research student and I have to do a statistical test for this project in SPSS. Basically I had people take three surveys that were scored, and I’m trying to see if there is a difference... more
Follows • 1
Expert Answers •1

05/10/20

suppose 20 individuals are randomly selected from a large population of voters of which 40% are democrats. what are the probabilities that:
a) exactly 10 of the selected voters are democrats?b) at least 10 are democrats?c) at most 10 are democrats?d) between 8 and 12, inclusive are democrats?e) how many of the voters selected could we... more
Follows • 1
Expert Answers •1

04/29/20

Regression Help
The following table gives information on the amount of sugar (in grams) and the calorie count inone serving of a sample of 13 varieties of Kellogg’s cereal. Sugar... more
Follows • 1
Expert Answers •1

04/24/20

The answer is 502.4 ml. How to get the answer?
A company making cans for lemonade wishes to print ‘Average content x ml’ on their cans, and to be 99% confident that the true mean volume is greater than x ml. The volume of lemonade in a can is... more
Follows • 1
Expert Answers •1

Still looking for help? Get the right answer, fast.

Ask a question for free

Get a free answer to a quick problem.
Most questions answered within 4 hours.

OR

Find an Online Tutor Now

Choose an expert and meet online. No packages or subscriptions, pay only for the time you need.