An analysis of data collected by the National Survey of Families and Household reported that 86 percent of unhappily married couples that stayed together were happy fives years later
Indicate whether the statement is true or false
True
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Which of the following was not an historical change that motivated changes in fertility policies?
a) In the 1950s there was increased concern with reproductive health and the rights of women. b) There were very high growth rates in many less developed countries in the 1960s and 1970s. c) By the mid-1990s fertility in many less developed countries had fallen considerably. d) By the mid-1990s fertility in some highly developed countries was very low.
Contrast high-, middle-, and low-income nations.
What will be an ideal response?
The most sophisticated of the dispersion measures discussed is the:
a. interquartile range. b. median. c. range. d. standard deviation. e. mode.
Suppose you obtain a chi-square statistic of 3.7 . Are your results statistically significant if the critical value obtained from the distribution of chi-square is 9.2 with an alpha level of .01?
a. results are not significant b. results are significant c. not enough information is provided here