Jonathan wants to make mashed potatoes for eight people. He found a recipe which feeds two people and requires five ounces of po
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Answer: The copy machine makes 171 copies in 4 minutes and 45 seconds.
Step-by-step explanation:
Let's dissect the question. The copy machine makes 36 copies per minute.
36 per min.
To see how many copies it makes in 4 minutes and 45 seconds, we multiply 36 * 4.75. 45 seconds is 3/4ths of a minute, or 0.75 of a minute.
It makes 171 copies in 4 minutes and 45 seconds.
Answer:
The 90% confidence interval is
Step-by-step explanation:
From the question we are told that
The sample mean for men is
The sample mean for women is
The sample size for men is
The sample size for women is
The standard deviation for men is
The standard deviation for women is
From the question we are told the confidence level is 90% , hence the level of significance is
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Generally from the normal distribution table the critical value of is
Generally the standard error is mathematically represented as
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Generally the margin of error is mathematically represented as
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Generally 90% confidence interval is mathematically represented as
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