Answer:
12
Step-by-step explanation:
Answer:
Step-by-step explanation:
The average weight of a package of rolled oats is supposed to be at least 18 ounces
Null hypothesis: u >= 18
Alternative: u < 18
Using the t-test formula, we have
t = x-u/ (sd/√n)
Where x is 17.78, u = 18, sd = 0.41 and n = 18
t = 17.78-18 / (0.41/√18)
t = -0.22 / (0.41/4.2426)
t = -0.22/ 0.0966
t = -2.277
Since, this is a left tailed test, at a significance level of 0.05, the p value is 0.01139. Since the p value is less than 0.05, we will reject the null hypothesis and conclusion that the true mean smaller than the actual specification.
Answer:
Step-by-step explanation:
Brand A: 3.89/72= 0.054 for each fork --> round 0.05
Brand B: 6.62/96 = 0.0689 for each fork--> round up to 0.07
by rounding, brand A is the better buy
That's right it is 236 since you put them in the right place value
Answer:
no solution
Step-by-step explanation:
no solution x=0
