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You are estimating the install hours for an electronics upgrade based on the number of components affected. The upgrade for which you are estimating affects 25 components. Given the following equation, select the correct response from each pair.
Install Hours = 2.65 + 2.15 (# Components) The independent variable is # ComponentsThe independent variable is Install Hours
The slope is 2.15The slope is 2.65
The estimated install hours for your upgrade is 56.40 hoursThe estimated install hours for your upgrade is 28.45 hours
Find the value of q-hat from proportion and degrees of freedom used to find the t-score.
Select a random variable to represent the category. Produce a probability mass function for that variable, and use it to compute the mean, the median and the variance of the data in the data set. Show the probability mass function, both in tabular..
Describe the sampling distribution of the sample proportion
Employer wishes to interview only those applicants who score in top 15%. What must cut-off score be for interviews?
SAT Math scores have a bell-shaped distribution with a mean of 515 and a standard deviation of 116. a) what percentage of SAT scores are between 399 and 631?
Test hypothesis that average price of gasoline in western states is higher than national average for Continental USA and the District of Columbia, i.e., higher than $3.74.
X is a continuous random variable uniformly distributed on [20, 45] that is, the end points c = 20 and d = 45.
At the 5% level of significance, can we infer that the population mean weight of athletic men is lower than the population mean weight of non-athletic men by more than 2 pounds?
In a sample of 50 members of a local health club you find that 12 of these members meet weekly with a physical fitness trainer and that the average body mass index (BMI) of these 12 members is less than the average BMI of the other 38 club members..
Scores on a test are normally distributed with a mean of 60.9 and a standard deviation of 12. Find P81, which separates the bottom 81% from the top 19%.
Develop a linear regression model for these data and forecast carpet sales if 30 construction permits for new homes are filed.
The number of passengers arriving at an airport terminal average 1200 each hour. To process passengers (check in, take luggage, etc) take an average of 6 minutes each. There are 6 airport staffers processing passengers. How long is the average wai..
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