A stock market analyst notices that in a certain year, the price of IBM stock increased on 131 out of 252 trading days. Can these data be used to find a 95% confidence interval for the proportion of days that IBM stock increases? Explain.
What will be an ideal response?
No, the data are not a simple random sample.
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Which is a valid explanation of (?X/?Y)_Z?
A. The independent variable X is being changed to observe the effect on dependent variable Y, while variable Z is kept constant. B. The independent variable Y is being changed to observe the effect on dependent variable X, while variable Z is kept constant. C. The independent variable Y, which is part of function Z, is being changed to observe the effect on dependent variable X. D. The independent variable X is being changed Z number of times to observe the effect on dependent variable Y. E. None of these are correct.
The United States is ill suited to providing an adequate supply of beef
Indicate whether the statement is true or false
Diploid vertebrate females would have which type of chromosome arrangement?
a. XX c. XY b. YY d. XZ
The National Safety Council recommends all the following do’s when using a ladder except: