a sample of 100 pregnancies were found to take an average of 267 days. the population deviation is known to be 13 days. find a 90% confidence interval for the true population mean.

When iris subtract - 12 - (-12), she got a difference of - 24 is her answer correct? If not what mistake did she make?

To illustrate the mean value theorem with a specific function, let's consider f (x) = x3 - x, a = 0, b = 2. since f is a polynomial, it is continuous and differentiable for all x, so it is certainly continuous on [0, 2] and differentiable on (0, 2).

At costco 32 cans of coke cost a total of $8.96. what is the cost per can? let c represent the cost for one can of coke

The cost of living last year went up 4% fortunely Alice got a 4% raise in her salary from last year this year she is earning 20,970 how much did she make last year

Your hourly rate of pay is $7.75/hr if you recieve a 4% increase in your hourly rate what is the new rate?

If the mean of the following distribution is 91 and sum of frequencies is 150 find x and y

Find the value of the spring constant for the spring in trial i. use 0.367 s for the value of the period. the mass of the suspended block is 0.400 kg. enter your answer in n/m with three significant figures.

5 + 3x = - 1 + 6 (6x + 1)

If you see a triangle that has a small box in one angle, what type of triangle is it?

There are t teams in a soccer league. each team consists of 11 players. write an equation to find how many players p are in the league