In a weight training class the mean average weight for the bench press is 230 lbs. with a standard deviation of 5 lbs. If 10 students are chosen at random, determine the standard error. Question 1 options:

0.79

1.58

3.65

none of these

As the sample size increases for the study increases what happens to the size of the confidence interval.
Question 3 options:

The size of the confidence interval decreases.

The size of the confidence interval increases.

The size of the confidence interval stays the same.

If c(x) = 4x – 2 and d(x) = x2 + 5x, what is (cxd)(x)

Identify the number 127 as a rational or irrational. explain

Barbara has a good credit history and is able to purchase a car with a low-interest car loan. she co-signs a car loan for her friend jen, who has poor credit history. then, jen defaults on the loan. who will be held legally responsible by the finance company and why? select the best answer from the choices provided. a. barbara will be held legally responsible because she has a good credit history. b. jen will be held legally responsible because she drives the car. c. barbara will be held legally responsible because she is the co-signer. d. jen will be held legally responsible because she has a poor credit history. the answer is a