Answer: The answer is B
Step-by-step explanation:
After subtracting 8.32 from 15.91, you get 7.59. If you add 8.32 and 7.59 you get back 15.91
1. Collect like terms
(n - 0.3n) + (4.5 - 3)
2. Simplify
0.7n + 1.5
Final Answer:
0.7n + 1.5
Answer:3/4
Step-by-step explanation: 1/4 times 3 equals 3/4
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Answer with explanation:</u></h2>
The confidence interval for population mean (when population standard deviation is unknown) is given by :-
, where n= sample size
= Sample mean
s= sample size
t* = Critical value.
Given : n= 25
Degree of freedom :
Significance level for 98% confidence interval :
Using t-distribution table ,
Two-tailed critical value for 98% confidence interval :
⇒ The critical value that should be used in constructing the confidence interval = 2.4922
Then, the 95% confidence interval would be :-
Hence, the 98% confidence interval for the mean repair cost for the dryers. =
Answer:
1.75
Step-by-step explanation:
divide 35 by 20