Answer:
The required sample size is 171.
Step-by-step explanation:
Consider the provided information.
The engineer wants to estimate the average life within plus or minus 15 hours with 95 percent confidence. Assuming a process standard deviation of 100 hours,
First calculate the value of
By using the table we get.
Now use the formula:
Substitute the respective values in the above formula we get.
Hence, the required sample size is 171.
Answer:
If Josh had 27 baseballs and has 3 shelves, then if he splits the 27 between 3 he will get 9.
Step-by-step explanation:
27 ÷ 3 = 9
Hope this helps.
The rates are equivalent. Rosalinda's rate is $7 a week which comes out to $1 a day. Her sister's rate is also $1 a day.
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