Which expression is NOT equivalent to 6x + 2y + 10
2 answers:
You might be interested in
Answer:
(45.6965,63.2035)
Step-by-step explanation:
Given that in an examination of holiday spending (known to be normally distributed) of a sample of 16 holiday shoppers at a local mall, an average of $54 was spent per hour of shopping.
i.e.
Margin of error = t critical * std error=9.2035
df = 15
(Here since sample std dev is known we use t critical value)
Confidence interval lower bound =
Upper bound =