What is it you need help with?
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Answer:
False
Step-by-step explanation:
Confidence intervals provide a range for a population parameter at a given significance level. The parameter can be mean, standard deviation etc.
In this example population is the prices of the rents of all the unfurnished one-bedroom apartments in the Boston area
significance level is 95%. Thus, the chance being the true population parameter in the given interval is 95%.
But, "This interval describes the price of 95% of the rents of all the unfurnished one-bedroom apartments in the Boston area." statement is false because the population parameter is missing. Confidence interval may describe population mean for example but it does not describe the <em>whole</em> population.
The answer is C, 80 because it says David can read 50 pages in 50 minutes (because he can read ten more than Mike, and Mike read 40) Which means he read a page a minute, therefore he would read 80 pages in 80 minutes.
Answer:
cn=90, so long as c and n are whole numbers
Step-by-step explanation:
There are two variables in this equation you have here. One, n the number of bags, has already been given to you, because there can be any number of bags. The other, weĺl call it c, is the number of cans in each bag. Because there could be any number of bags, and the number of cans needed in each one is also a variable, you are left with more than one option. Any solution will work so long as the number of cans, c, per bag, n, is equal to the total, 90. There could be 9 cans in 10 bags, or 10 cans in 9 bags, or 15 cans in 6 bags or vice versa. The only way to define it for one answer is to have a set number of bags or cans per bag. Hope this helps!