Question
Question 1 Determine the z-score for C=92%. Round answer to the nearest thousandths place and don't enter any signs. __________________________. Question 2 Determine the TI-menu
Question 1
Determine the z-score for C=92%. Round answer to the nearest thousandths place and don't enter any signs.
__________________________.
Question 2
Determine the TI-menu required.
A random sample of 40 employees reveals amean weekly distance traveled to be 423 miles with sigma= 42 miles. To determine the test statistic which TI-menu is required?
a.ZInterval
b.1PropZInt
c.TTest
d.ZTest
e.1PropZtest
f.TInterval
___________________.
Question 3
To estimate the population mean weight of out-going packages, a shipping company randomly samples 70 packages and finds a mean weight of 52 pounds.The population standard deviation is known to be 10.1 pounds.
Construct the 88% confidence interval and state the lower bound___________________ and upper bound ___________________, each rounded to the nearest thousandths place.
Interpret your CI in context___________________.
Question 4
A landscape engineer claims that the average area of a pond is at most 150 sqft. To test this claim 30 randomly selected ponds show a mean of 151.7 sqft.The population standard deviation is known to be 6.8 sqft.Use the pvalue method to test the claim at the 7% significance level.
a. State Ho and Ha___________________
b. Determine Critical Value and identify the rejection region___________________
c. State the test menu and determine Test Statistic___________________
d. Determine the p-value___________________
e. State the conclusion, explain why, and interpret in context___________________
Round answers to the nearest thousandths.
Copy/paste from these symbols as needed:p, , , , <, >, =,
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