Chan Hee bought 3.4 pounds of coffee that cost $6.95 per pound. How much money did he spend on coffee?
1 answer:
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Answer:
no enough evidence to draw up a conclusion
Step-by-step explanation:
Data:
let: = decay after 2 weeks
= decay after 16 weeks
Making the hypotheses:
Null hypothesis;
the deviation = 0.05
the standard difference = 4
Conditions:
The normal distribution curve can be plotted on a graph and the plot shows that the distribution is a skewed distribution.
Then,
Therefore, it can be concluded that 0.1983 > 0.05. This presents our failure to reject the null hypothesis.
Thus, there is not enough evidence to conclude that polyester decays more in less than 2 weeks.
Answer:
The correct answer is "x = 4" and "x = -12".
Step-by-step explanation:
The given equation is:
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On subtracting "18" from both sides, we get
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On applying factorization, we get
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On taking common, we get
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or,
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