A large sample of children was followed over time. One investigator looked at all the children who were at the 90th percentile in height at age four. Some of these children turned out to be above the 90th percentile in height at age eighteen, and others were below. The number of children who were above the number of children who were below was

A study was undertaken to see how accurate food labeling for calories on food that is considered reduced calorie. The group measured the amount of calories for each item of food and then found the percent difference between the measured and labeled amount of calories. The group also looked at food that was nationally advertised, regionally distributed, or locally prepared. Do the data indicate that at least one of the mean percent differences between the three groups is different from the others? The data summarized in the table below. National 3.15 Regional 36.75 Local Mean Standard Deviation Source Between Within 151 Total Fill in the hypotheses below: Ho: All the means are equal. Ha: At least one mean is different from the others. 7.4359 14.1558 SS 70.0204 Part 2 of 3 Complete the following ANOVA summary table (a 0.10). Round your answers to three decimal places, if necessary, and round any interim calculations to four decimal places. Sample Size df 20 12 8 MS - F P-value

You are told that the proportion p-hat  of those who answered "yes" to a poll about internet use is p-hat = 0.70, and the standard error of the proportion is 0.0458. What was the sample size?

. A Pew poll taken in 2010 surveyed 830 people aged 18-29 and found that 166 of them had one or more tattoos. Based on this survey, can you conclude that the percentage of people aged 18-29 who have a tattoo is less than 25%? Use the a = significance. 0.01 level of