Answer: 5/28
Step-by-step explanation:
Answer:
A) 15 times as old
Step-by-step explanation:
60/4=15
5.01 is greater
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Answer:
A manufacturer of banana chips would like to know whether its bag filling machine works correctly at the 447 gram setting.

Mean = 
n = 19
Since n < 30 , so we will use t test

Substitute the values :


t calculated = -0.830
degree of freedom = n-1 = 19-1 = 18
A level of significance=α=0.025

t critical = 2.093
t calculated < t critical
So, We failed to reject null hypothesis
Decision rule -0.830< 2.093 So, We failed to reject null hypothesis
Y = -1x+b
replace x and y to find b
2 = -1*2+ b
b = 4
Final:
y = -1x + 4