Reference no: EM132852691
A certain brand of automobile tire has a mean life span of 36,000 miles and a standard deviation of 2,100 miles.? (Assume the life spans of the tires have a? bell-shaped distribution.)
?(a) The life spans of three randomly selected tires are 34,000 ?miles, 38,000 ?miles, and 31,000 miles. Find the? z-score that corresponds to each life span.
For the life span of 34,000 ?miles, z-score is: ________?
For the life span of 38,000 ?miles, z-score is: _________?
For the life span of 31,000 ?miles, z-score is: _________?
(Round to three decimal spaces)
According to the? z-scores, would the life spans of any of these tires be considered? unusual? YES OR NO
?(b) The life spans of three randomly selected tires are 33,900 ?miles, 38,100 ?miles, and 36,000 miles. Using the empirical? rule, find the percentile that corresponds to each life span.
- The life span 33,900 miles corresponds to the _________th percentile?
- The life span 38,100 miles corresponds to the _________th percentile?
- The life span 36,000 miles corresponds to the _________th percentile?
|
Epidemic-endemic and pandemic occurrence of disease
: At what point does a disease become an epidemic, endemic, or pandemic? What are the parameters that define each of these states of a disease's effect?
|
|
What is the level of measurement of the data
: A meteorologist keeps track of the time of day that the sun sets. What is the level of measurement of the data?
|
|
Identify key traditions and ideas influencing our culture
: You will be required to outline how the study of Humanities enables us to learn more about how traditions and ideas influence culture.
|
|
What should you do to correct each of these errors
: The inventory would have been $6,000 less on the balance sheet dated December 31, 2015. What should you do to correct each of these errors
|
|
Find the? z-score that corresponds to life span
: ?(a) The life spans of three randomly selected tires are 34,000 ?miles, 38,000 ?miles, and 31,000 miles. Find the? z-score that corresponds to each life span.
|
|
How should Sound Traxs account
: Resale DVDs sell for $10 each regardless of the price Sound Traxs paid for the tape. How should Sound Traxs account for each of the two types of DVDs-rentals
|
|
New taxonomy of kendall and marzano
: Based on kendall's and Marzano's new taxonomy, select learning competencies from the k to curriculum guide to illustrate levels of difficulty
|
|
Determine the cost of goods sold expense
: Kramer used the FIFO method to value its inventory and reported cost of goods sold expense for the year of $4,000. Determine the cost of goods sold expense
|
|
Find the probability expressions
: On hot, sunny, summer days, Jane rents inner tubes by the river that runs through her town. Based on her past experience, she has assigned the following
|