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At wind speeds above 1000 centimeters per second (cm/sec), significant sand-moving events begin to occur. Wind speeds below 1000 cm/sec deposit sand and wind speeds above 1000 cm/sec move sand to new locations. The cyclic nature of wind and moving sand determines the shape and location of large dunes. At a test site, the prevailing direction of the wind did not change noticeably. However, the velocity did change. Sixty-three wind speed readings gave an average velocity of x = 1075 cm/sec. Based on long-term experience, o can be assumed to be 260 cm/sec. (a) Find a 95% confidence interval for the population mean wind speed at this site. (Round your answers to the nearest whole number.) | cm/sec | cm/sec lower limit upper limit (b) Does the confidence interval indicate that the population mean wind speed is such that the sand is always moving at this site? Explain. O No. This interval indicates that the population mean wind speed is such that the sand may not always be moving at this site. Yes. This interval indicates that the population mean wind speed is such that the sand may not always be moving at this site. Yes. This interval indicates that the population mean wind speed is such that the sand is always moving at this site. O No. This interval indicates that the population mean wind speed is such that the sand is always moving at this site.

At wind speeds above 1000 centimeters per second (cm/sec), significant sand-moving events begin to occur. Wind speeds below 1000 cm/sec deposit sand and wind speeds above 1000 cm/sec move sand to new locations. The cyclic nature of wind and moving sand determines the shape and location of large dunes. At a test site, the prevailing direction of the wind did not change noticeably. However, the velocity did change. Sixty-three wind speed readings gave an average velocity of x = 1075 cm/sec. Based on long-term experience, o can be assumed to be 260 cm/sec. (a) Find a 95% confidence interval for the population mean wind speed at this site. (Round your answers to the nearest whole number.) | cm/sec | cm/sec lower limit upper limit (b) Does the confidence interval indicate that the population mean wind speed is such that the sand is always moving at this site? Explain. O No. This interval indicates that the population mean wind speed is such that the sand may not always be moving at this site. Yes. This interval indicates that the population mean wind speed is such that the sand may not always be moving at this site. Yes. This interval indicates that the population mean wind speed is such that the sand is always moving at this site. O No. This interval indicates that the population mean wind speed is such that the sand is always moving at this site.

Mathematics For Machine Technology
Mathematics For Machine Technology
8th Edition
ISBN:9781337798310
Author:Peterson, John.
Publisher:Peterson, John.
Chapter16: Table Of Decimal Equivalents And Combined Operations Of Decimal Fractions
Section: Chapter Questions
Problem 34A: A stamped sheet steel plate is shown in Figure 164. Compute dimensions AF to 3 decimal places. All...
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At wind speeds above 1000 centimeters per second (cm/sec), significant sand-moving events begin to occur. Wind speeds below 1000 cm/sec deposit sand and wind speeds above 1000 cm/sec move sand to new locations. The cyclic nature of wind and moving sand determines the shape and location of large dunes. At a test site, the prevailing direction of the wind did not change noticeably. However, the velocity did change. Sixty-three wind speed readings gave an average velocity of x = 1075 cm/sec. Based on long-term experience, o can be assumed to be 260 cm/sec. (a) Find a 95% confidence interval for the population mean wind speed at this site. (Round your answers to the nearest whole number.) lower limit cm/sec upper limit cm/sec (b) Does the confidence interval indicate that the population mean wind speed is such that the sand is always moving at this site? Explain. O No. This interval indicates that the population mean wind speed is such that the sand may not always be moving at this site. Yes. This interval indicates that the population mean wind speed is such that the sand may not always be moving at this site. O Yes. This interval indicates that the population mean wind speed is such that the sand is always moving at this site. O No. This interval indicates that the population mean wind speed is such that the sand is always moving at this site.
Transcribed Image Text:At wind speeds above 1000 centimeters per second (cm/sec), significant sand-moving events begin to occur. Wind speeds below 1000 cm/sec deposit sand and wind speeds above 1000 cm/sec move sand to new locations. The cyclic nature of wind and moving sand determines the shape and location of large dunes. At a test site, the prevailing direction of the wind did not change noticeably. However, the velocity did change. Sixty-three wind speed readings gave an average velocity of x = 1075 cm/sec. Based on long-term experience, o can be assumed to be 260 cm/sec. (a) Find a 95% confidence interval for the population mean wind speed at this site. (Round your answers to the nearest whole number.) lower limit cm/sec upper limit cm/sec (b) Does the confidence interval indicate that the population mean wind speed is such that the sand is always moving at this site? Explain. O No. This interval indicates that the population mean wind speed is such that the sand may not always be moving at this site. Yes. This interval indicates that the population mean wind speed is such that the sand may not always be moving at this site. O Yes. This interval indicates that the population mean wind speed is such that the sand is always moving at this site. O No. This interval indicates that the population mean wind speed is such that the sand is always moving at this site.
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