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stiks02 [169]
3 years ago
5

Find the critical value z Subscript alpha/2 that corresponds to the given confidence level. 99?% z Subscript alpha/2 = nothing?

Mathematics
1 answer:
Marina CMI [18]3 years ago
8 0

Answer:

2.576

Step-by-step explanation:

Given :

Confidence level (α) = 99%

Z(1 - α)/2 = Z(1 - 99%)/2

Z1%/2 = Z1%/ 2

Z0.5% = Z0.005

Z(0.99 + 0.005) = Z0.995

Using the Z distribution table ; locate the z value for the proportion 0.995 ; this corresponds to approximately 2.57

Similarly, using the Invnorm calculator function :

Invnorm(0.995) gives a Zscore of :

2.576

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John receives two credit card offers in the mail. Credit Card A: 1% introductory APR, 19.9% APR for purchases after the introduc
musickatia [10]

Answer:

(D) "...because he will not have to pay any interest on his purchases during the introductory APR period."

Step-by-step explanation:

There may be many reasons for John to choose one over the other depending on his future and planned usage patterns. However, answer the (D) is the only correct one in terms of stating a reason that is actually supported by the information in the question. Specifically, there is 0% APR for card B.

What's wrong with the other choices:

Choice A: incorrect statement re APR after intro period (is not 1%); B: incorrect statement re cash advance (is not 0%); C: statement is not supported by anything in the information given (it is an assumption, and is unlikely).

5 0
3 years ago
Read 2 more answers
A rectangular garden is 6 feet longer than its wide. The perimeter of it is 52 feet. What equation can be used to find the width
fenix001 [56]

Answer:

Hi there!

Your answer is;

the equation

(w+6)+(w+6)+(w)+(w) = 52

The width of this rectangle is 10. The length of this rectangle is 16.

Step-by-step explanation:

Rectangular perimeter:

l+l+w+w

l= w+6

w= w

(w+6)+(w+6)+(w)+(w)

4w+12= 52

4w = 40

/4

w= 10

Hope this helps!

8 0
4 years ago
What is the radius of the circle using the equation below?
slava [35]

Answer:

the radius is 5 cubic meters

7 0
3 years ago
PLEASE HELP GUYS/GIRLS
den301095 [7]

Answer:

3

Step-by-step explanation:

7 0
3 years ago
I need help please, asap!
stich3 [128]

Answer:

x = 11

Step-by-step explanation:

1) A line is equal to 180°. Subtract 70° from the 180°:

180 - 70 =

110

2) To find x set 7x +33 equal to 110:

110 = 7x +33

3) Subtract 33 from both sides:

77 = 7x

4) Divide both sides by 7

x = 11

7 0
3 years ago
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