For the given set of numbers, find the mean, the median, and the mode. If necessary, round the mean to one decimal place \( 0.7,0.8,1.3,1.1,1.1,1.4,0.7,1.2,1.6 \) The mean is 1.1 . (Round to one decimal place as needed.) The median is \( \square \). (Round to one decimal place as needed.)

Multiple Choice 2 points A study finds no significant difference in math scores between children in two teaching methods, even though a true difference exists in the population. This is an example of: Sampling error Type ll error Type l error Measurement error

A researcher studies how different dietary programs affect children's height growth. When is One-Way ANOVA appropriate? (Select all that apply) When the dependent variable (height growth) is continuous. When the researcher compares the mean height growth across three independent dietary programs. When the study involves pre- and post-measurements for the same group of children. When the dietary programs are dependent on one another.

NOW TRY THESE PROBLEMS. 1. Jimena is laid off and sends out 42 job applications. Statistically, one in six applications results in an interview. How many interviews can Jimena expect? A 1 B_ 6 D_ 36

Find the range, the standard deviation, and the variance for the given samples. Round non-integer results to the nearest tenth. \[ 84,72,73,100,61,81,74,54,49 \] range standard deviation variance

What's the key? A method of analyzing digital music files to determine the key in which the music was written was tested to determine its accuracy. In a sample of 361 pop music selections, the key was correctly identified in 277 of them. In a sample of 374 new age selections, the key was correctly identified in 299 of them. Can you conclude that the method is more accurate for new age music than for pop music? Let \( p_{1} \) denote the proportion of correctly identified keys in new age music. Use the \( \alpha=0.05 \) level of significance. Part 1 of 4 (a) State the appropriate null and alternate hypotheses. \( H_{0}: p_{1}= \) \( H_{1}: p_{1} \) This is a right-tailed Part: \( 1 / 4 \) Part 2 of 4 (b) Find the \( P \)-value. Round the answer to four decimal places. \( P \)-value \( = \)