Mathematics, 20.09.2019 01:30 tinatis
Consider a population having a standard deviation equal to 10.05. we wish to estimate the mean of this population. (a) how large a random sample is needed to construct a 95 percent confidence interval for the mean of this population with a margin of error equal to 1? (round your answer to the next whole number.) the random sample is units. (b) suppose that we now take a random sample of the size we have determined in part a. if we obtain a sample mean equal to 252, calculate the 95 percent confidence interval for the population mean. what is the interval’s margin of error?
Answers: 2
Mathematics, 21.06.2019 15:40
Use the discriminant to describe the roots of each equation. then select the best description. 2m2 + 3 = m double root real and rational roots real and irrational roots non-real roots
Answers: 2
Mathematics, 21.06.2019 17:00
The rumpart family is building a new room onto their house. the width of the new room will be 16 feet. the length of the room will be 4% greater than the width. write an expression to find the length of the new room. what will be the area of this new room?
Answers: 2
Mathematics, 21.06.2019 19:30
Need now max recorded the heights of 500 male humans. he found that the heights were normally distributed around a mean of 177 centimeters. which statements about max’s data must be true? a) the median of max’s data is 250 b) more than half of the data points max recorded were 177 centimeters. c) a data point chosen at random is as likely to be above the mean as it is to be below the mean. d) every height within three standard deviations of the mean is equally likely to be chosen if a data point is selected at random.
Answers: 1
Mathematics, 21.06.2019 23:00
Evaluate each expression. determine if the final simplified form of the expression is positive or negative -42 (-4)2 42
Answers: 2
Consider a population having a standard deviation equal to 10.05. we wish to estimate the mean of th...
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