The sales of Paul's prints decreased by 22% when Pauline's paintings came on the market. Before that Paul's profits were at $560
2 answers:
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Answer: 0.0944
Step-by-step explanation:
Given : Sample size of cars : n= 150, sample size is greater than 30 , so we use z-test.
Number of cars tested do have faulty catalytic converters =42
Then the proportion of cars have faulty catalytic converters :
Critical value of z for 99% confidence level :
Formula for Margin of error :
Hence, the required margin of error =
V-speed
t-time
s-distance
s = 272 mi; v = 68 mph; t = ?
subtitute
Answer: Ted drove 4h.
t-time
s-distance
s = 272 mi; v = 68 mph; t = ?
subtitute
Answer: Ted drove 4h.