Part A. Express the original claim in symbolic form.
Claim: <em>The mean pulse rate (in beats per minute) of adult males is equal to 68.9 bpm.</em>
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<em>Therefore, the original claim in symbolic form is:</em>
ANSWER:
Part B. Identify the null and alternative hypotheses.
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4, 8, 10, 7, 3, 4... Those r in order from top to bottom! it's all about the simplification!
Step-by-step explanation:
0.004 as a fraction is 1/250
one over two hundred and fifty
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.
