# Question

A certain adjustment to a machine will change the length of the parts it makes but will not affect the standard deviation. The length of the parts is normally distributed, and the standard deviation is 0.5 mm. After an adjustment is made, a random sample is taken to determine the mean length of the parts now being produce

d. The resulting lengths are as follows:

a. What is the parameter of interest?

b. Find the point estimate for the mean length of all parts now being produced.

c. Find the 0.99 confidence interval for m.

d. The resulting lengths are as follows:

a. What is the parameter of interest?

b. Find the point estimate for the mean length of all parts now being produced.

c. Find the 0.99 confidence interval for m.

## Answer to relevant Questions

“Tweens or teens” refers to the age group of students in seventh grade. Growth spurts are very common at this age. A sample of 12 randomly selected seventhgrade females in a New York City school resulted in the following ...How large a sample should be taken if the population mean is to be estimated with 99% confidence to within $75? The population has a standard deviation of $900. You have heard that the average American male is 69.7 inches tall. Yet almost all of the adult males in your personal world seem to be between 5 and 6 feet tall, with a few just over 6 feet. So how does the average get to be ...Describe the actions that would result in a type I error and a type II error if each of the following null hypotheses were tested. (Remember, the alternative hypothesis is the negation of the null hypothesis.) a. Ho:The ...The conclusion is the part of the hypothesis test that communicates the findings of the test to the reader. As such, it needs special attention so that the reader receives an accurate picture of the findings. a. Carefully ...Post your question

0