The SAVC then approached all cat food manufacturing organizationsin the Western Cape and asked for their manufacturing data to statistically establish (or determine) that the average amount of citrate in products produced in 2014, did not exceed the mandated SAVC upper limit.They believe that in that year, the citrate values in pet food was higher than the regulated SAVC limit.

Below is cat food citrate Data collected in 2014:

Lower limit = 976.66

Upper limit = 1356.48

min = 1005.5

max = 1119.1

Sample Mean = 1119.1

Std dev = 36.9

Total number of sample 202

one tailed t test for one sample is used as appropriate hypothesis test.

Questions

1. What is the Null hypothesis for this data?
2. What is the alternate hypothesis?
3. What is the correct logarithm used for this data?
4. At 95% confidence, calculate the critical value (Also known as the t_crit).
5. The distribution curve that applies to the hypothesis test performed and indicate the area does the test statistic falls.
6. Make all statements that applies to conclude this hypothesis test.
7. Based on statistical evidence can be conclude that the Cat Kibbles products had more than the SAVC regulated limit (amount of citrate)in the cat food they produced?