The following section is cumulative material from the entire six-week course that is NOT Unit 4

A 95% confidence interval for the mean reading achievement score for a population of third-grade students is (44.2, 54.2).  Suppose you compute a 90% confidence interval using the same data.  Which of the following statements is correct?

Endorsement means that a person

Using a sampling distribution for proportions, answer the following question and scenario.   Companies are interested in the demographics of those who listen and call in to the radio programs they sponsor. Suppose that only 20% of listeners phoning in to a morning talk show are male. If the station takes a random sample of 200 callers, what is the probability that the sample proportion of males will be at least 0.30?    upload a picture of your work OR type your answer here.  

You survey a sample of 1000 employees at a large company and record the age of each. The results are given in the frequency distribution table below.  If you select one employee at random, what is the probability the selected employee is more than 24 years old?   Age 15-24 25-34 35-44 45-54 55-64 65 and over Frequency 54 366 233 180 125 42  

Which of these is NOT a time to use the Avoidance style of conflict?

In the sample, mean time spent on homework per night was 1.23 hours, resulting in a P-value of 0.18.  Interpret the P-value in context.

Exchange theory suggests that people choose to remain in relationships that offer them

Concerning your NEWER decade; the mean was _______ the SD was _______ the sample size was _______   Note: Label your answers with each statistic on a new line

_______________________ gives both people at least some of what they want, although both sacrifice part of their goals.