16. Diet and practices. In 1980, that year they had five or more alcoholic drink

Question

16. Diet and practices. In 1980, that year they had five or more alcoholic drinks in one sitting. In 2000, a similar survey of 150 showed that 38 percent had five drinks in one siting at least one time during the year. Does this represent a significant increase? Use 0.01 level of significance. a) The test statistic of -1.46 is not less than -1.96, therefore, the sample evidence indicates health have become big business, but many people are not following good health a survey of 150 indicated that 30 percent said that at least one time during that there has been no significant change in the proportion of those who drink heavily at least one day during the year. b) The test statistic of -1.46 is not less than -2 58; therefore, the sample evidence indicates c) The test statistic of -1.46 is not less than -2,33; therefore, the sample evidence indicates d) The test statistic of -2.56 is less than -2.33; therefore, the sample evidence indicates that e) The test statistic of -2.56 is less than -2.58; therefore, the sample evidence indicates that that there has been no significant change in the proportion of those who drink heavily at least one day during the year that there has not been significant change in the proportion of those who drink heavily at least one day during the year there has been significant change in the proportion of those who drink heavily at least one day during the year. there has been significant change in the proportion of those who drink heavily at least one day during the year

Explanation / Answer

The statistical software output for this problem is:

Two sample proportion summary hypothesis test:
p1 : proportion of successes for population 1
p2 : proportion of successes for population 2
p1 - p2 : Difference in proportions
H0 : p1 - p2 = 0
HA : p1 - p2 < 0

Hypothesis test results:

Hence,

Test statistic = -1.46

Critical value = -2.33

Option C is correct.

Difference Count1 Total1 Count2 Total2 Sample Diff. Std. Err. Z-Stat P-value p1 - p2 45 150 57 150 -0.08 0.054699177 -1.4625448 0.0718

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