22. Use the information from Question 21. Show how the Distributive Property can be used to find the area of Marlene's living ro
om.
23 Use the algebraic expression for length and width of Marlene's living room found in the diagram and the value of x found in Question 21C
A.find the actual length and width of her living room.
B. Find the actual area of Marlene's living room use actual dimensions.
23 Use the algebraic expression for length and width of Marlene's living room found in the diagram and the value of x found in Question 21C
A.find the actual length and width of her living room.
B. Find the actual area of Marlene's living room use actual dimensions.
2 answers:
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Answer:
The 95% confidence interval for the percentage of all boards in this shipment that fall outside the specification is (1.8%, 6.2%).
Step-by-step explanation:
In a random sample of 300 boards the number of boards that fall outside the specification is 12.
Compute the sample proportion of boards that fall outside the specification in this sample as follows:
The (1 - <em>α</em>)% confidence interval for population proportion <em>p</em> is:
The critical value of <em>z</em> for 95% confidence level is,
*Use a <em>z</em>-table.
Compute the 95% confidence interval for the proportion of all boards in this shipment that fall outside the specification as follows:
Thus, the 95% confidence interval for the proportion of all boards in this shipment that fall outside the specification is (1.8%, 6.2%).
