In: Statistics and Probability
| T2005 | AZ100 | 
| 3.06 | 2.91 | 
| 3.04 | 3.31 | 
| 3.13 | 2.82 | 
| 3.01 | 3.01 | 
| 2.95 | 2.94 | 
| 3.02 | 3.17 | 
| 3.02 | 3.25 | 
| 3.12 | 3.39 | 
| 3.00 | 3.22 | 
| 3.04 | 2.97 | 
| 3.03 | 2.93 | 
| 3.05 | 2.97 | 
| 3.01 | 3.05 | 
| 2.73 | 2.95 | 
| 3.12 | 2.92 | 
| 3.04 | 2.71 | 
| 3.10 | 2.77 | 
| 3.02 | 2.73 | 
| 2.92 | 3.18 | 
| 3.01 | 2.95 | 
| 3.15 | 2.86 | 
| 2.69 | 3.16 | 
| 3.04 | 3.06 | 
| 3.01 | 3.25 | 
| 2.95 | 2.82 | 
| 3.14 | 3.22 | 
| 3.31 | 2.93 | 
| 3.01 | 3.24 | 
| 2.93 | 2.77 | 
| 3.00 | 2.94 | 
| 3.04 | 3.31 | 
Conduct a hypothesis test to determine if the AZ100 drill holes are statistically significantly different from the hypothesized value of 3 centimeters. Use an alpha of .05, and assume the population standard deviation is unknown. What is the value of your test statistic?
Question 21 options:
| 
 1.100  | 
|
| 
 0.670  | 
|
| 
 0.020  | 
|
| 
 0.034  | 
To determine the precision of the two drills, you examine the variance in the sample data for the two samples.
Conduct a test of the hypothesis that the T2005 and the AZ100 are equally precise (that they have equal variances). What is the p-value of your hypothesis test?
Question 22 options:
| 
 0.997  | 
|
| 
 0.005  | 
|
| 
 0.350  | 
|
| 
 .003  | 
Question 23 (1 point)
Saved
What is the point estimate of the population mean of the hole diameter for the T2005?
Question 23 options:
| 
 2.799  | 
|
| 
 3.022  | 
|
| 
 3.023  | 
|
| 
 3  | 
Question 24 (1 point)
Conduct a hypothesis test to determine if the AZ100 drill holes are statistically significantly different from the hypothesized value of 3 centimeters. Use an alpha of .05, and assume the population standard deviation is unknown. What is the p-value for your hypothesis test?
Question 24 options:
| 
 0.254  | 
|
| 
 0.140  | 
|
| 
 0.508  | 
|
| 
 0.746  | 
Question 25 (1 point)
To determine the precision of the two drills, you examine the variance in the sample data for the two samples.
Conduct a test of the hypothesis that the T2005 and the AZ100 are equally precise (that they have equal variances). What is the value of your test statistic?
Question 25 options:
| 
 2.854  | 
|
| 
 3.023  | 
|
| 
 0.350  | 
|
| 
 3.022  |