A survey Was contacted to determine the favorite snack food at 300 shoppers at a grocery store. The circle graph shows the resul
ts of the survey. how many shoppers chose cookies as if it was their favorite snack food?
1 answer:
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Answer:
The correct value is t* = 2.797.
Step-by-step explanation:
The first step to solve this problem is finding how many degrees of freedom, we have. This is the sample size subtracted by 1. So
df = 25 - 1 = 24
99% confidence interval
Now, we have to find a value of T, which is found looking at the t table, with 24 degrees of freedom(y-axis) and a two-tailed confidence level of . So we have T = 2.797.