Each year is 12 months so it would be 1.5 years
Answer:
1. A matched-pairs t-test is valid, despite the sample being a small representation of the population, because the sample is a simple random sample and has a distribution with a single peak.
Step-by-step explanation:
The matched-pairs test is valid, for the reasons given in choice 1. Here's why:
- We do have matched pairs, not a 2-sample t-test, because each two are paired by the house they live in. Husband and wife live together: it's safe to pair them. (This rules out option 5.)
- Check conditions: The sample is large enough (fulfilling the <u>sample size condition)</u>. The sample data is fairly normal, although we don't know the population data, and the sample size is over 40, so we consider it a fairly large sample (fulfilling the <u>nearly normal condition)</u>. We don't know about outliers, but we'll have to assume Ted doesn't have any, because they aren't mentioned.
Answer:
81+71+x=180
152+x=180
x=180-152
x=28°
Step-by-step explanation:
Hope that this is helpful.
Have a great Day.
we are given
basketball player Chauncey Billups of the Detroit Pistons makes free throw shots 88% of the time
so, probability of making shot is
=88%
so, p=0.88
To find the probability of missing first shot and making the second shot
so, we can use formula
probability = p(1-p)
now, we can plug values
we get
So, the probability that he misses his first shot and makes the second is 0.1056........Answer