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A precision lathe costs $30,000 and will cost $40,000 a year to operate and maintain. If the discount rate is 10% and the lathe will last for 5 years, what is the equivalent annual cost of the tool?
many consumers pay careful attention to stated nutritional contents on packaged foods when making purchases. it is
calculate the standard deviation of the data. for this calculation compute the difference between each one of the
You can win $100 if you succeed in any one of the following: 1) draw a spade from a fresh deck of cards; 2) draw a heart from a fresh deck of cards; or 3) flip a fair coin and it comes up tails.
In each case, specify which of the two variables is the explanatory variable and which is the response variable. If it is ambiguous, explain why.- Is there a relationship between the amount of beer people drink and their systolic blood pressure?
A trucking firm suspects that the mean lifetime of a certain tire uses is less than 35,000miles. To check the claim the firm randomly selects and tests 54 of these tires and gets a mean life time of 34,570
a researcher is investigating the effectiveness of a new medication for lowering blood pressure for individuals with
Question 24: Which of the following statistics is not a measure of central location? (a) Mean (b) Median (c) Mode (d) Interquartile range
For each of the following, indicate whether the variable is ordinal or not. If the variable is not ordinal, indicate its variable type.
For each of the following problems, assume that the homogeneity of variance assumption has not been met and that you will need to use the adjusted Welch statistic.
By using.02 level of significance, carry out a 5-step hypothesis testing procedure to find out if new processes considerably reduced the wait time.
The number of customers who have requested a reservation at full fare for this flight in the past always has a normal distribution with mean 40 and standard deviation 10. Determine how many seats should be reserved for customers who pay full fare.
question according to a survey published by compsych corp. 54 of all workers read email while they are talking on the
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