Answer:
Explanation:
The coach of a college men’s soccer team records the resting heart rates of the 27 team members. You should not trust a confidence interval for the mean resting heart rate of all male students at this college based on these data because;
(a) with only 27 observations, the margin of error will be large.
(b) heart rates may not have a Normal distribution.
(c) the members of the soccer team can’t be considered a random sample of all students.
Answer:
Petty Cash is debited for $200; Cash is credited for $200
Explanation:
Based on the information given in a situation were they decided to create a petty cash fund in which it was estimated that the amount of $200 would be needed in the petty cash fund which means that the correct journal entry to create the account is to DEBIT Petty Cash with the amount of $200 and to CREDIT Cash with the amount of $200.
Petty Cash is debited for $200
Cash is credited for $200
Answer:
n = 160
p = 0.12
Explanation:
In a Binomial distribution two parameters are of great interest, n and p.
where n is the number of trials and p is the probability of success and (1 - p) is the probability of failure.
p = 12%
n = 160
Mean = E(X) = μ = n*p = 160*0.12 = 19.2
μ = 19.2
variance = σ² = np(1 - p) = 160*0.12(1 - 0.12) = 16.89
standard deviation = σ = √16.89 = 4.11
σ = 4.11
Answer:
C. Playgrounds are rival in consumption, and the optimal number of playgrounds is three.
Explanation:
The computation is shown below:
For 3 playgrounds, total willingness to pay is
= 200 + 1600 + 800
= 2600 > Marginal cost (2250).
And,
For 4 playgrounds, total willingness to pay is
= 100 + 1400 + 700
= 2200 < Marginal cost (2250).
Therefore, 3 playgrounds should be considered as an optimal and playground would be rival
