The American National Election Study contains the variable spend8, which records the number of government policy areas where respondent think spending should be increase. Scores range from 0 (the respondent does not want the increase spending on any of the policies) to 8 (the respondent wants increase spending on all eight policies). The spend8 variable has a sample mean of 4.163 with a sample standard deviation of 2.193 based on 3,649 respondents.

1. The standard error of the sample men of spend8 is .
2. We can be 95 percent confident that spend8's true population mean falls between a score of at the low end and a score of at the high end.
3. Based on the 95% CI, you can infer that (select one)

• The population mean of the spend8 variable is significantly lower than 4.53.
• The population mean of the spend8 variable is not significantly lower than 4.53.

1. Using the confidence interval approach, you can infer that (select one)

• The population mean of the pend8 variable is significantly higher than 4.53.
• The population mean of pend8 variable is not significantly higher than 4.04.