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Blababa [14]
3 years ago
5

About travels 16 miles due north in two hours and 24 miles due west in two hours. what is the average speed of the boat?

Mathematics
1 answer:
timofeeve [1]3 years ago
6 0
Not 100% but
S= D / T
S= (24-16)/ 2 hrs
2 hours x 60 = 120 mins
S= 8 / 120 = 1/15
S= 0.067 m/s
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Question:

You are given the sample mean and the population standard deviation. Use this information to construct the​ 90% and​ 95% confidence intervals for the population mean. Interpret the results and compare the widths of the confidence intervals. If​ convenient, use technology to construct the confidence intervals. A random sample of 45 home theater systems has a mean price of ​$114.00. Assume the population standard deviation is ​$15.30. Construct a​ 90% confidence interval for the population mean.

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Population standard deviation, σ = $15.30

The formula for Confidence Interval, CI is given by the following relation;

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Plugging in the values, we have;

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To find the wider interval, we subtract their minimum from the maximum as follows;

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3 years ago
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Step-by-step explanation:

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2 years ago
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