Use the formula 
to calculate the 99% confidence interval for a sample of N = 15 with a mean 
= 7.50 and standard error of the mean 
= .32.
a. 99% CI = 7.50 ± .69
b. 99% CI = 7.50 ± .56
c. 99% CI = 7.50 ± .95
d. 99% CI = 7.50 ± 3.30
c. 99% CI = 7.50 ± .95
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Which of the following most accurately describes the purpose of a mira?
a. The mira allows one to see the translation of the picture in its window. b. The mira allows one to see the reflection of the picture in its window. c. The mira allows one to see an enlargement of the picture in its window. d. The mira allows one to see a reduction of the picture in its window. e. The mira allows one to see a rotation of the picture in its window.
If the 95 percent confidence interval around a sample mean of 8.24 is 7.27 and 9.68, we can conclude
that a. the population mean is likely to be either 7.27 or 9.68. b. the population mean is likely to be the midpoint between 7.27 and 9.68. c. the population parameter for the sample mean is likely to be between 7.27 and 9.68. d. the population parameter for the sample mean is likely to be lower than 7.27 or higher than 9.68.
Which of the following are examples of performance reading?
a. choral reading b. reader's theatre c. language experience d. a and b e. a and c