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.

Trades & Technology

You might also like to view...

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.

Trades & Technology

The United States is ill suited to providing an adequate supply of beef

Indicate whether the statement is true or false

Trades & Technology

Diploid vertebrate females would have which type of chromosome arrangement?

a. XX c. XY b. YY d. XZ

Trades & Technology

The National Safety Council recommends all the following do’s when using a ladder except: