Lenox ironed of the shirts over the weekend. She plans to split the remainder of the work equally over the next 5 evenings. If L
1 answer:
Answer: 16
Step-by-step explanation:
Total shirts = 40
Number of evenings = 5
If we split the remainder of the work equally over the next 5 evenings.
then, the number of shirts she will need to iron on each evening =
Number of shirts need to buy on Thursday and Friday = 2 (8) = 16
Hence, the number of shirts she need to iron on Thursday and Friday = 16
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Answer:
The 90% confidence interval for the population standard deviation waiting time for an oil change is (3.9, 6.3).
Step-by-step explanation:
The (1 - <em>α</em>)% confidence interval for the population standard deviation is:
The information provided is:
<em>n</em> = 26
<em>s</em> = 4.8 minutes
Confidence level = 90%
Compute the critical values of Chi-square as follows:
*Use a Chi-square table.
Compute the 90% confidence interval for the population standard deviation waiting time for an oil change as follows:
Thus, the 90% confidence interval for the population standard deviation waiting time for an oil change is (3.9, 6.3).
