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hammer [34]
2 years ago
8

HELPPP

Mathematics
1 answer:
Alexxandr [17]2 years ago
3 0
Hope this helps you

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A manager of the credit department for an oil company would like to determine whether the mean monthly balance of credit card ho
valkas [14]

Answer:

c) t-test of population mean

Explanation:

The t-test statistic is used in hypothesis testing. Here we would use a one sample t test to test our hypothesis. The one sample t test measures the statistical difference between the hypothesized mean and the sample mean. In a one sample t test or single sample t test, a test variable is measured against a test value.

Example we compare our test variable to the hypothesized mean value $75 above.

The t test is used instead of z score when standard deviation is unknown.

Using the t test, we either accept or reject the null hypothesis given alternative hypothesis.

6 0
2 years ago
Look closely at the character of Alice in the film and the play versions of Alice’s Adventures in Wonderland. Does the character
Tems11 [23]

Answer:

In the movie, Tweedledee and Tweedledum and the talking flowers are incorporated into the original plot from Alice's Adventures in Wonderland. In the book, Alice eats little cakes in the White Rabbit's house to become smaller. In the movie, Alice eats carrots from The White Rabbit's garden to become smaller.

Step-by-step explanation:

3 0
2 years ago
Sharonda uses a blend of dark chocolate and milk chocolate to make the ice cream topping at her restaurant. She needs to buy 120
White raven [17]

Step-by-step explanation:

ATQ,

Let d be the number of kilograms of dark chocolate she buys and m be the number of kilograms of milk chocolate she buys.

She needs to buy 120 kg of chocolate in total for her next order, and her recipe calls for twice the amount of dark chocolate as milk chocolate.

So,

m = 2d .....(1)

m + d = 120 ...(2)

We can also solve the above equations,

Put m = 2d in equation (2)

2d + d = 120

3d=120

d = 40

Put d = 40 in equation (1)

m = 2(40)

m = 80

Hence, she will need 40 kg of dark chocolate and 80 kg of milk chocolate.

4 0
3 years ago
Find the slope of each line.<br> 6)
gregori [183]

Answer:

(4,7)

Step-by-step explanation:

6 0
2 years ago
HELP PLS ANSWER ASAP. Which number is greater and by how much: A decreased by 50% and then increased by 50% of the result
FinnZ [79.3K]

Answer:

a is greater by 25

Step-by-step explanation:

if a=100

then,100-50=50-25=25

so same way= a is greater by 25

5 0
2 years ago
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