Jessica Herrera Period On a scale 1 - 5

California Standards :

We believe that most of centurians will rate the food a one.

 We clustered the centurians into separate grade levels(freshmen sophomores, juniors and seniors) and asked during school.  Then stratified them into 25 centurians of each grade level.

Freshmen: 1,1,2,1,4,3,2,3,1,2,3,1,1,3,3,4,2,2,2,2,2,2,3,2,3 Sophomores: 1,1,1,1,1,4,3,3,2,1,2,3,2,1,2,3,3,2,1,3,2,3,1,1,2 Juniors: 1,1,1,1,2,1,1,1,2,1,3,2,1,3,2,1,3,2,3,3,2,1,3,1,1 Seniors: 1,1,1,1,2,1,1,1,2,1,3,2,2,1,1,2,1,3,2,1,3,1,2,1,1 One being the worst Five being the best

From the survey, the mean of centurians scaling the food at century on a scale of 1-5 is 1.87 and the standard deviation is.8792.

95% confidence level Z interval (1.6977, ) We are 95% confident that the mean of students scaling the food at century on a scale 1-5 is between 1.69 ~ 2.04.

1. Hypothesis 2. Test Statistics Z- test P- value = E-23 0 =0.05 At 5% level of significance we reject the there is not enough evidence to support the claim.

Our sample mean is 1.87 on a scale 1-5, and for the population mean is between on a scale 1-5. Our sample errors : having students absent, students not being truthful or they don’t eat the food at century.

We hypothesized that centurians would scale the food a one on a scale 1-5. In our survey of 100 centurians, we found that the mean was 1.87 with the standard deviation of We conclude that the population mean is between 1.69 & 2.04 on a scale 1-5 with 95% confident.