Question

Use the birth weights from the data set, “Births,” to construct a 95% confidence interval estimate...

Use the birth weights from the data set, “Births,” to construct a 95% confidence interval estimate of the standard deviation of the population from which the sample was obtained. Below is the birth weights. ThNks please show me how to do in the stat crunch.

BIRTH WEIGHT
3500
3900
800
2800
3700
2400
4200
4000
3100
3400
1600
3500
2000
3900
2900
3000
3300
3200
2800
3300
300
4000
4500
2500
3600
1700
4000
3900
3100
3800
2200
3000
3400
3500
1500
1800
1600
900
3500
3800
2100
3400
2600
3000
4100
4100
4300
3400
2700
3300
2900
3300
3500
2800
3500
3700
3000
3600
3500
2900
3300
3300
2500
3700
2800
2800
3500
900
4300
2700
3700
3500
3000
2600
3300
3400
4700
3200
3300
3900
2800
3600
3400
4100
3300
1500
3300
3100
2600
3300
2400
3600
4200
3800
3200
2000
3000
3800
3600
2300
3100
2900
1500
3100
2700
4200
600
1000
3500
3000
3200
3800
3900
3600
3400
4000
3200
3600
3600
3200
3400
3500
2400
3100
3600
2700
3500
2800
3800
3600
3400
3800
2500
3400
3100
3400
3500
2700
3700
3500
4300
2900
4100
2500
3100
4300
3500
3800
2800
3000
3600
3100
3400
2700
3300
2700
3700
3600
3200
3800
3800
2800
2800
4900
3600
3800
2500
3600
2600
3000
3200
3200
3700
3400
4000
2600
3300
3900
3300
2500
2800
2900
3300
2900
3100
2900
3000
3700
1900
3100
3100
3300
3600
3100
3300
3500
4300
2700
3200
3700
1800
4000
3200
3000
3700
2300
3000
2900
3200
3300
3300
2600
2400
3100
3200
3300
3200
2600
3800
3800
2900
3200
3400
2300
3500
2600
3400
3300
2700
3100
3300
3000
2800
2900
3300
3000
3900
3200
4000
3400
2900
3500
2300
2900
3700
2800
3500
3800
3600
1900
3600
4000
3600
3200
3600
4100
4100
2200
3800
3000
3100
2600
3400
3500
3400
3300
2000
3100
4000
3100
3200
2700
3600
3200
3100
1700
3300
3300
3700
3400
3100
3500
3700
3400
3600
3800
3600
2600
3000
3600
3600
3100
3500
3000
2900
2800
2900
3600
2300
3600
300
3300
3000
3300
4000
2700
3300
3400
2900
3300
3400
2800
3400
1800
2800
2400
2800
2900
3400
2300
2900
2400
2700
3600
3500
3300
2900
3600
3600
3500
3800
2700
4000
4600
2300
3600
3100
4500
3300
700
2600
2000
2700
3300
2000
3700
3100
3600
1600
2600
3700
1600
3900
3000
2700
3100
4600
3200
4000
3400
3800
3700
3400
2500
3300
2400
3600
3600
3400
3200
2200
3100
2800
3700
2800
2800
4300
3300
2800
3400
3100
3200
2900
2400
800
3300
2400
3500
3500
3200
1700
3400
3000
3500
3200
2900
3400
4000
3200
4000
""

Math   Statistics-And-Probability   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

First we need to find the descriptive statistics of data. Following is the output generated by excel:

Descriptive statistics
BIRTH WEIGHT
count 400
mean 3,152.00
sample standard deviation 693.43
sample variance 4,80,848.12
minimum 300
maximum 4900
range 4600

------------

0 0
Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
Descriptive Statistics Find the 34th percentile, P34,  from the following data 1200 1300 1500 1700 1900 2000...
Descriptive Statistics Find the 34th percentile, P34,  from the following data 1200 1300 1500 1700 1900 2000 2100 2400 2500 2700 3000 3100 3300 3500 3600 3700 3900 4000 4300 4400 4500 4700 5000 5100 5300 5400 5500 5800 6300 6400 6500 6600 6700 6800 7100 7600 7900 8000 8600 9000 P34 =
Create a null hypothesis and a directional experimental hypothesis for minutes of exercise. Create a null...
Create a null hypothesis and a directional experimental hypothesis for minutes of exercise. Create a null hypothesis and a non-directional experimental hypothesis for cigarettes smoke daily, alcohol beverages and daily calories. Should we conduct a one or two tailed? Participants Minutes of exercise Daily calories Cigarettes smoked daily Alcohol beverages 1 30 2000 0 2 2 0 3000 5 4 3 120 1500 0 0 4 150 1800 10 14 5 0 3200 0 5 6 150 1600 20 35...
Use the birth weights from the data set, “Births,” to construct a 95% confidence interval estimate...
Use the birth weights from the data set, “Births,” to construct a 95% confidence interval estimate of the standard deviation of the population from which the sample was obtained. One sample variance confidence interval: σ2 : Variance of variable 95% confidence interval results: Variable Sample Var. DF L. Limit U. Limit BIRTH WEIGHT 480848.12 399 420524.36 555224.34 After entering this information in StatCrunch Im not sure how to get the Standard deviation PLEASE POST CLEAR AND LEGIBLE ANSWERS
A car dealership decided to add an annex to its sales office as a customer lounge....
A car dealership decided to add an annex to its sales office as a customer lounge. The project is divided into the activities listed in the following table. The immediate predecessor(s), times and costs, both normal and crashed, are given. To finish the project sooner, the dealership has to make time and cost tradeoffs. If the project needs to be finished in 25 weeks, you are required to formulate a linear programming model to decide about how much to crash...
National Restaurant Supply, Inc., sells restaurant equipment and supplies throughout most of the United States. Management...
National Restaurant Supply, Inc., sells restaurant equipment and supplies throughout most of the United States. Management is considering adding a machine that makes sorbet to its line of ice cream making machines. Management will negotiate the price of the sorbet machine with its Swedish manufacturer. Management of National Restaurant Supply believes the sorbet machine can be sold to its customers in the United States for $3,845. At that price, annual sales of the sorbet machine should be 87 units. If...
Alan is considering the purchase of an $11,000 commercial printer, scanner, and fax machine for his...
Alan is considering the purchase of an $11,000 commercial printer, scanner, and fax machine for his sandwich shop. Alan will need to borrow the funds at 7% interest and the printer is expected to carry a salvage value of $600 in year 4. The expected returns generated by the printer are as follows: Year 1 $4000 Year 2 $4200 Year 3 $3800 Year 4 $ 1000 What is the net present value? What is the internal rate of return? Should...
Create the Descriptive Statistics for "Price" and "SQFT" - Include a 95% Confidence Test on the...
Create the Descriptive Statistics for "Price" and "SQFT" - Include a 95% Confidence Test on the Population Mean Produce a Scatterplot for Price (Dependent) and SQFT (Independent) (PLACE BELOW) Conduct a 95% Hypothesis Test (i.e., ? = .05) to determine if the Mean Price of Houses is greater than $242,512. Use a Population Standard Deviation of $172,000 for your Z-test (i.e., we are determing if the mean has increased from the previous year). Answers From the Scatterplot (placed below), is...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT