Over a long period of time in a large multinational corporation, 10% of all sales trainees are rated as outstanding, 75% are rated as execellent/good, 10% are rated as satisfactory, and 5% are considered...

Over a long period of time in a large multinational corporation, 10% of all sales trainees are rated as outstanding, 75% are rated as execellent/good, 10% are rated as satisfactory, and 5% are considered...

i need help with this question and many others and im hoping you can help me thanks

The female death rate in Britain in 2009 was 49.3 per 100 000 of population and the male death was 71.2 per 100 000. Given that the population of Britain was 61 113 295, how many more male deaths...

this question is based on sampling concepts in survey work

This is a conditional probability question I am struggling to solve and understand. Any insight would be so very useful. Here is the problem: A five digit number is formed from the digits 1,2,3,4,5...

Total amount of time (x, in minutes) spent commuting by the entire 240 residents of a housing area was recorded. Given that total x = 10,980 and total ( x - µ )² = 23,191. Compute the...

a candidate must win 263 of the total of 523 votes in an electoral college. Let's suppose that the largest region gets 52 votes. Assuming that a candidate wins this region, the number of additional...

Assume that x has a normal distribution with the specified mean and standard deviation. Find the indicated probability. (Round your answer to four decimal places.) μ = 14.2; σ = 3.2 P(8 ≤...

I need help please.

An electric company found the relationship between house size (x, in square feet) and monthly electric bill (y, in dollars) is given by yˆ y ^ = 0.03x + 18.50. Use this least squares...

A local board of education conducted a survey of residents in the community concerning a property tax levy on the coming local ballot. They randomly selected 850 residents in the community and contacted...

This question is based off of a problem set given by my instructor.

If the test has a mean score of 800 and a standard deviation of 125, what is the lowest score you can achieve and still be admitted to the graduate school?

The test is normally distributed.

An institute hosted 10 French teachers for 4 weeks. At the beginning of the period, the teachers were given the Modern Language Association's listening test of understanding of spoken French...

If 1200 students take the test, how many would you expect to score over 650? Round your answer to the nearest whole number.

use this data set. 0,1,1,1,1,1,2,2,2,2,3,3,3,5,7,10,10

70 70 71 71 72 73 74 74 76 76 77 78 79 79 79

this is the entire question there is nothing else to ad

find the required sample size for sample to construct a 95% confidence interval for the population meant that has sampling error SE=0.25, and it is given that population standard deviation is 7.5...