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A statistics student wants to predict the annual salaries of employees at one large company. He wants to know if he can use the number of years that someone has worked at the company to predict his or her annual salary.
What is the explanatory variable in this scenario?
A) The statistics student
B) Number of years that someone has worked at the company
C) Employees of the company
D) Annual salary
The company you work for employs 585 assembly-line workers - 526 men and 59 women. 16 men and 10 women have been laid off.
Is there evidence of a difference in the variability of the waiting time between the two branches? (Use 5% level of significance). Find the p-value in (a) and interpret its meaning.
Does the Southside qualify for the employment assistance program and provide the city council with a recommended course of action based on this result.
a presidental candidate conducts a poll of likely voters in ohio to determine their mean ageanswer the following1.
1. A regression analysis relating test scores (Y) to training hours (X) produced the following fitted equation: Yˆ =13.2 +1.3X . (a) What is the fitted value of the response variable corresponding to X = 8?
Indicate your hypotheses, decision rule, statistical decision and management conclusion using the critical value and then find the p-value and state your decision rule, statistical decision and management conclusion using this method.
Can the company conclude that the pill is effective at promoting weight loss? Write the hypotheses and conduct the appropriate hypothesis test.
let x1 x2 be a random sample from a distribution with density function fxthetaxtheta-1 for 0ltxlt1. the null hypothesis
A test is normally distributed with a mean of 40 and a standard deviation of 7. (a) What score would be needed to be in the 85th percentile?
The number of T.V. homes in the sample having cable T.V. What is the probability that at least 2 T.V. homes in the sample are served by cable?
in a recent study researchers followed 104000 u.s. veterans who had served in the armed forces and a comparison group
A company wants to determine if employees have any preferences among 5 different health plans. A sample of 200 employees provided the data below.
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