Question

A simple random sample of speeds (miles/hour) measured from southbound traffic on Highway 99 towards Dallas...

A simple random sample of speeds (miles/hour) measured from southbound traffic on Highway 99 towards Dallas Tx on a Monday afternoon at 3:30 pm resulted in the following data: n = 27, s = 6.43 m/hr, = 59.8 m/hr. Assume a normal distribution. Use a 0.05 significance level to test the claim of the highway engineer that the standard deviation of speeds is equal to 5.0 m/hr.
Test Statistic:
Diagrama:
Conclusión:
Math   Statistics-And-Probability   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

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
5.) A simple random sample of speeds (miles/hour) measured from southbound traffic on Highway 99 towards...
5.) A simple random sample of speeds (miles/hour) measured from southbound traffic on Highway 99 towards Bakersfield on a Monday afternoon at 3:30 pm resulted in the following data: n = 27, s = 6.43 m/hr, x̅ = 59.8 m/hr. Assume a normal distribution. Use a 0.05 significance level to test the claim of the highway engineer that the standard deviation of speeds is equal to 5.0 m/hr. Test Statistic: Hypotheses: Diagram: Conclusion:
listed below are speeds (mi/h) measured from traffic on a busy highway. This simple random sample...
listed below are speeds (mi/h) measured from traffic on a busy highway. This simple random sample was obtained at 3:30 PM on a weekday. Use the sample data to construct a 95% confidence interval estimate of the population standard deviation. 61 63 63 55 63 55 60 70 59 67
Listed below are speeds​ (mi/h) measured from traffic on a busy highway. This simple random sample...
Listed below are speeds​ (mi/h) measured from traffic on a busy highway. This simple random sample was obtained at​ 3:30 P.M. on a weekday. Use the sample data to construct a 99​% confidence interval estimate of the population standard deviation. 61 60 60 57 60 55 59 58 59 68 58 66 Use the table of​ Chi-Square critical values to find the confidence interval estimate.
9. А simple random sample of 40 recorded speeds in miles per hour is obtained from...
9. А simple random sample of 40 recorded speeds in miles per hour is obtained from cars traveling on а section of Highway 405 in Los Angeles. The sample has а mean of 68.4 miles per hour and а standard deviation of 5.7 miles per hour. Use а 0.05 significance level to test the claim that the mean speed of all cars is greater than the posted speed limit of 65 miles per hour.
A sample of 15 speeds measured from the southbound traffic on I-65 near downtown Montgomery have...
A sample of 15 speeds measured from the southbound traffic on I-65 near downtown Montgomery have a sample mean of 62.5 miles/hour. The population standard deviation is known to be 4.5 miles/hour. The speed limit on this area of the road is 55 miles/hour. Calculate a 90% confidence interval for the mean speed.
Listed below are speeds​ (mi/h) measured from traffic on a busy highway. This simple random sample...
Listed below are speeds​ (mi/h) measured from traffic on a busy highway. This simple random sample was obtained at​ 3:30 P.M. on a weekday. Use the sample data to construct a 98​% confidence interval estimate of the population standard deviation. 64 62 62 56 62 53 60 59 60 69 61 68
Listed below are speeds​ (mi/h) measured from traffic on a busy highway. This simple random sample...
Listed below are speeds​ (mi/h) measured from traffic on a busy highway. This simple random sample was obtained at​ 3:30 P.M. on a weekday. Use the sample data to construct a 98​% confidence interval estimate of the population standard deviation. 63 64 64 55 64 53 61 60 61 69 62 68
Listed below are speeds​ (mi/h) measured from traffic on a busy highway. This simple random sample...
Listed below are speeds​ (mi/h) measured from traffic on a busy highway. This simple random sample was obtained at​ 3:30 P.M. on a weekday. Use the sample data to construct a 98​% confidence interval estimate of the population standard deviation. 63 64 64 56 64 55 61 60 61 68 59 69
Listed below are speeds​ (mi/h) measured from traffic on a busy highway. This simple random sample...
Listed below are speeds​ (mi/h) measured from traffic on a busy highway. This simple random sample was obtained at​ 3:30 P.M. on a weekday. Use the sample data to construct a 90​% confidence interval estimate of the population standard deviation 60 63 63 57 63 54 59 58 59 69 58 67
Listed below are speeds​ (mi/h) measured from traffic on a busy highway. This simple random sample...
Listed below are speeds​ (mi/h) measured from traffic on a busy highway. This simple random sample was obtained at​ 3:30 P.M. on a weekday. Use the sample data to construct an 80​% confidence interval estimate of the population standard deviation. 65 61 61 56 61 52 59 58 59 69 62 67 The confidence interval estimate is ?
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT