Grade 11 and 12 Mathematics (Moderator: geoffrey)

Construct a 95 confidence interval for p1 - p2 for a survey that finds 30 of 240 males and 41 of 200 ...

Started by mmm

A random sample of 100 students at a high school was asked whether they would ask their father or ...

Started by naturalchemist

A county welfare agency employs 31 welfare workers who interview prospective food stamp recipients. ...

Started by Davideckstein7

The number of goals scored at State College hockey games follows a Poisson distribution with a mean ...

Started by magmichele12

True or False: When constructing a confidence interval for the difference of two population ...

Started by rlane42

Construct a 99 confidence interval for the population mean, . Assume the population has a normal ...

Started by nautica902

A salesman boasts to a farmer that his new fertilizer will increase the yield of the farmers crops ...

Started by KWilfred

Find the right-hand critical value F0 for a two-tailed test using = 0.05, degrees of freedom in the ...

Started by student77

Assume that P(A ) = 0.7 and P(B) = 0.2. If A and B are independent, find P(A and B). A) 0.14 B) ...

Started by cabate

A student answers all 48 questions on a multiple-choice test by guessing. Each question has four ...

Started by tingc95

Suppose x is a random variable for which a Poisson probability distribution with = 8.7 provides a ...

Started by ericka1

If P(A ) = 0.45, P(B) = 0.25, and P(BA ) = 0.45, are A and B independent? A) no B) yes C) cannot ...

Started by faduma

A random sample of 10 parking meters in a resort community showed the following incomes for a day. ...

Started by khang

If the probability of a newborn kitten being female is 0.5, find the probability that in 100 births, ...

Started by CBme

Assume that P(E) = 0.15 and P(F) = 0.48. If E and F are independent, find P(E and F). A) 0.072 B) ...

Started by swpotter12

A local concert center reports that it has been experiencing a 15 rate of no-shows on advanced ...

Started by melly21297

The university police department keeps track of the number of tickets it write in a year. Last year ...

Started by CQXA

True or False: For two events A and B, suppose P(A ) = 0.1, P(B) = 0.8, and P(AB) = 0.1. Then A and ...

Started by jazziefee

A jury is to be selected from a pool of 34 potential jurors. The defendant faces the death penalty ...

Started by misspop

An electronics store receives a shipment of 50 flat screen TVs of which 5 are defective. During the ...

Started by student77

Given events A and B with probabilities P(A ) = 0.5, P(B) = 0.4, and P(A and B) = 0.2, are A and B ...

Started by mia

Find the critical value from the Studentized range distribution for H0: 1 = 2 = 3 = 4 = 5, with n = ...

Started by NguyenJ

Of the 3800 students at a college, 280 are mature students. 50 students are selected at random from ...

Started by Metfan725

The principal at Riverside High School would like to estimate the mean length of time each day that ...

Started by sarasara

Assuming that all conditions are met to approximate a binomial probability distribution with the ...

Started by RODY.ELKHALIL