If you need help Joe is measuring the widths of doors he bought to install in an apartment complex. He measured
72 doors and found a mean width of 36.1 inches with a standard deviation of 0.3 inches. To test if
the doors differ significantly from the standard industry width of 36 inches, he computes a z-
statistic
ZE
X-H
//n
What is the value of Joe's z-test statistic?
O 1.81
O 2.83
о
-2.83
O 1.81
O
RI
a
11:25 AM
6/23/2021
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At river bank, checking account customers earn 0.75% interest a month on their account balances, pay no service fees for writing checks, and pay a monthly $2.00 financial charge. calculate the income earned in one month on the checking account for a customer with an account balance of $1,000. a. $4.25 b. $5.50 c. $6.75 d. $7.25 checking account earnings at baker’s bank are expressed by the equation: i = -0.09x + 10.2. while the earnings at elite bank are modeled by: i = -0.02x + 7.5. in both cases, x is the number of checks written. at what number of checks will elite bank start generating more checking account income than baker's bank? a. 12 b. 25 c. 39 d. 42 emilio’s checking account had a balance of 728.32 at the beginning of the week. he wrote checks for the following amounts throughout the week: $99.48, $33.50, $18.23, and $72.05. he also deposited his paycheck in the amount of $1,109.90. what is his account balance at the end of the week? a. $1,192.35 b. $1,222.86 c. $1,540.52 d. $1,614.96