Answer:
The probability of observing a sample mean of 31.1 grams of fat per pound or less in a random sample of 34 farm-raised trout is 0.227
Step-by-step explanation:
Let X be the sample mean of fat in 34 farm-raised trout
The probability of observing a sample mean of 31.1 grams of fat per pound or less in a random sample of 34 farm-raised trout can be stated as:
P(X<31.1 grams) = P(z<z*)
where z* is the z-statistic of sample mean of 31.1 grams fat.
z* can be calculated as follows:
z*= where
- M is the average grams of fat per pound (32)
- s is the standard deviation (7)
- N is the sample size (34)
Then z*= ≈ −0.7497
and P(z<z*) ≈ 0.227
The probability of observing a sample mean of 31.1 grams of fat per pound or less in a random sample of 34 farm-raised trout is 0.227
Answer:
The test statistic is Z = 1.157
Step-by-step explanation:
Given that:
The sample size n = 1200
The sample proportion of those that will vote for the Republican candidate is represented by
The null and the alternative hypothesis can be computed as:
The formula for the one-sample Z-test for the population proportion can be expressed as:
Z = 1.157
Answer:
12:20
Step-by-step explanation:
3*4 is 12
multiply 5 by 4 also, and then you get 20
Answer:
290 m3
Step-by-step explanation:
I took the test