Among various ethnic groups, the standard deviation of heights is known to be approximately three inches. We wish to construct a 95% confidence interval for the mean height of males from a certain country. Forty-five males are surveyed from a particular country. The sample mean is 72 inches. The sample standard deviation is 2.9 inches. O Part (a) O Part (b) O Part (c) O Part (d) Construct a 95% confidence interval for the population mean height of males of this country. ) State the confidence interval. (Round your answers to two decimal places.) (i) Sketch the graph.

Q: Plz help me!!! There are some books on three shelves. On the bottom shelf there are half as many…

A:

Q: Mr X's age is three times my age. The sum of our ages is 40. How old am I? How old is mr x?

A: Let Mr X’s age is x and my age is y.It is given that; Mr X’s age is three times my age.Implies that,

Q: (a) The curve with equation y² = x³ + 3x2 is called the Tschirnhausen cubic. Find an equation of the…

A:

Q: A  student wants an A in his Math class, so must finish the semester with a 90 average.  So far, he…

A: As total number of parts = 9  Average of 9 is given as = 90 Hence the total grade should be 90×9 =…

Q: don't understand how the equation turned into 5x+x+6/x(x+6), could you go through the equation again…

A:

Q: oduct of two numbers is 20 the quotient of the two numbers is 5    what are the two numbers?

A: Let, x and y be the two numbers, the product of two numbers = x*y = 20 the quotient of the two…

Q: When Evil Kenevil was a kid, he decided to attempt to jump a distance of 30 yards using ramps that…

A:

Q: (1 – p)? p)² р (1 – p)?k 1-P k=1 1 -р1 — (1- р)3 p 1

A: We want to proof LHS=RHS

Q: Sorry I can't see the solution it's too messy, could you please write the answer part again please

A:

Q: I don't know if you know this, but when you upload your work it gets all jumbled together and makes…

A: We have two equation for v'1t and v'2t .  We need to solve for them and find values .  We will use…

Q: i can run 5 miles on one hour.At this rate,how long will it take me to run 7 miles?

A: I can run 5 miles on one hour. At this rate, how long will it take me to run 7 miles?

Q: It looks like the rest of the solution is cut off after 3x-y, did something go wrong?

A:

Q: I have attached the screen shot of the questions. I need help solving the entire problem but…

A: From the given triangle, we have

Q: Chen's friend Alisa can ride 2 miles in 7 minutes. How long would it take for Alisa to ride 10 miles…

A:

Q: Two men painted a barn. John painted it alone in 5 days, Albert in 8 days. They painted it together,…

A:

Q: I tried the solutions you did, but it still said that it's incorrect. I don't know what else I could…

A:

Q: Vrishna worked 43 hours in 7 days. hours clid How many sthe work gach day? equetion. unte an

A: Solution : Given that Kristina worked  43 hours in 7 days   43/7 = 6.1428571 hours  She worked…

Equations and Inequations

Equations and inequalities describe the relationship between two mathematical expressions.

Linear Functions

A linear function can just be a constant, or it can be the constant multiplied with the variable like x or y. If the variables are of the form, x2, x1/2 or y2 it is not linear. The exponent over the variables should always be 1.