An interval used to predict a future value is called a ______.

A) prediction interval
B) confidence interval
C) standard error
D) population interval

The data referred to in this question were collected on 41 employees of a large company.The company is trying to predict the current salary of its employees from their starting salary (both expressed in thousands of dollars) .The SPSS regression output is given below as well as some summary measures: John Doe works for this company.He started with a salary of $15,300.Predict his current salary with a 90% confidence interval.Express the interval in the appropriate units.

A) ($15,683;$45,537)
B) ($18,204;$43,015)
C) ($28,580;$32,640)
D) ($31,516;$32,885)

A small company employs a supervisor at $1400 a week,an inventory manager at $800 a week,8 stock boys at $300 a week each,and 6 drivers at $700 a week each.

A) $2200
B) $733
C) $500
D) $300
E) $550

In testing for the equality of two population variances, when the populations are normally distributed, the 10% level of significance has been used. To determine the rejection region, it will be necessary to refer to the F table corresponding to an upper-tail area of:

A) 0.90
B) 0.05
C) 0.20
D) 0.10
E) 0.85

Evaluate and calculate to the cent: L(1 - d₁) (1 - d₂) (1 - d₃)for L = $490, d₁ = 0.125, d₂ = 0.15, d₃ = 0.05

Factor the trinomial, if possible. $12x^2-8x-15$

A) $(2x-3)(6x-5)$
B) $(2x+3)(6x+5)$
C) $(2x-3)(6x+5)$
D) $(3x+2)(5x-6)$
E) The trinomial is prime.