Evidence of the mean dimension

Assignment Help Basic Statistics

Reference no: EM1313695

Auto crank shafts:

Here are measurements (in millimeters) of a critical dimension for 16 auto engine crankshafts:

224.120 224.001 224.017 223.982 223.989 223.961

223.960 224.089 223.987 223.976 223.902 223.980

224.098 224.057 223.913 223.999

The dimension is supposed to be 224 mm and the variability of the manufacturing process is unknown. Is there evidence that the mean dimension is not 224 mm?

1. Based on the p-value and α = 0.025, the null hypothesis (Ho) is:

a. Rejected

b. not rejected

c. Not enough information to draw a conclusion

2. Based on the above analysis (p-value and α = 0.025), we conclude that

a. The mean dimension of the crankshafts is 224mm.

b. The mean dimension of the crankshafts is 224mm.

c. We do not have enough information to draw a conclusion

Reference no: EM1313695

Questions Cloud

Explain project acceptance or rejection decision and reasons : Explain Project acceptance or rejection Decision and reasons there of and Draw a cash flow diagram for this project

Determining pattern represents mean-median and mode : Pattern that most accurately represents mean, median and mode is?

Impact of banks behaviour : Suppose that because of the ongoing financial turmoil banks become more prudent: that is, other things equal, banks want to hold more excess reserves and make fewer loans.

What is speed of the block : A catcher stops a ball traveling at 28.0 m/s in a distance of 55.30 cm and feels a force of 313 N against his glove. What is the mass of the ball.

Evidence of the mean dimension : The dimension is supposed to be 224 mm and the variability of the manufacturing process is unknown. Is there evidence that the mean dimension is not 224 mm?

Microsoft appears to have a monopoly : Microsoft appears to have a monopoly with over 90 %of the personal computer operating market. Why then would it not be charging a monopoly price

Production possibility frontier to illustrate : Use a production possibility frontier to illustrate the probable results of your fiscal policy. By how much did consumption change? By how much did savings change?

Find how long the sled takes to travel from a to b : A daredevil on the motorcycle leaves the end of a ramp with a speed of 36.0 m/s. If his speed is 34.20 m/s while he reaches the peak of the path, what is the maximum height that he reaches? Ignore friction and air resistance. In meters

Find the net service credit and debit : Does Triton owe the bank the amount you have calculated for the net service credit/(debit), or can it carry this amount forward to offset future shortfalls?

User Account

All Pages