An automotive part must be machined to close tolerances to be acceptable to customers. production specifications call for a maximum variance in the lengths of the parts of .0004. suppose the sample variance for 30 parts turns out to be s 2 = .0005. use = .05 to test whether the population variance specification is being violated.
state the null and alternative hypotheses.
h0 : σ2
ha : σ2
calculate the value of the test statistic (to 2 decimals).
the p-value is what is your conclusion?

The base of a triangle exceeds the height by 7 centimeters. if the area is 400 square centimeters, find the length of the base and the height of the triangle.

Need showing work for this problem 56.25 ×25.80

30 points! here is a you are the new manager at trusty goods wholesale produce. you need to figure out how to adjust the amount of produce in your notes after the events of the day: you got 5 more crates of bananas someone returned 2 crates of apples a worker dropped a crate of grapes (oh no! , you had to throw them out) you sold a crate of bananas you sold 5 crates of apples can you write an expression to describe your day using: "a" for crates of apples "b" for crates of bananas and "g" for crates of grapes? make sure the expression is in simplest form question 2 (3 points) explain your steps using sentences.