Step-by-step explanation:
there are 12 months in a year, and therefore 2×12 = 24 "half-months" and therefore semimonthly payments.
that means each paycheck is
72,000 / 24 = $3,000
there are 52 weeks per year.
that means they're are 52/2 = 26 biweekly periods and therefore payments.
each paycheck is therefore
72,000 / 26 = $2,769.23
so, Alice receives 2 more paychecks (26 to 24) in a year.
the difference between the 2 types of payment is
3000 - 2769.23 = $230.77
Answer:
2.51 < σ < 3.92
Step-by-step explanation:
We will use Chi-Square distribution to create the interval. We have the following information:
n = 41
Level of Confidence : 95%,
This corresponds to Chi-Square values of:
24.433 for the left tail and 59.342 for the right tail
We need to calculate the sample Variance. This is done on attached photo 1 (the shortcut formula for finding variance was used)
We get s = 9.3866.
See the construction of the confidence interval on the second attached photo
Answer:
<em> 3 + 3x = 45 ; x = 14 </em>
Step-by-step explanation:
45 = 3x + 3 ⇒ <em>x = 14</em>
Answer:
20
Step-by-step explanation:
3 (b + a) = c
3 (4 + 5) = 7
12 + 15 = 7
27 = 7
27 - 7
20