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RideAnS [48]
3 years ago
13

If LaTeX: z_{obt}z o b t= +2.21, do you reject LaTeX: H_0H 0 or fail to reject LaTeX: H_0H 0 using a one-tailed test in the uppe

r tail with α = .05? Why do you make that choice? Note: Be sure to type in the correct answer in the space provided here.
Mathematics
1 answer:
professor190 [17]3 years ago
7 0

Answer:

Reject the null hypothesis

Step-by-step explanation:

From the question we are told that

   The test statistic is  z_{obt} =  +2.21

    The level of significance is  \alpha  =  0.05

Given that this a one tailed in the upper tail then from the z table the area under the normal  curve to the right  corresponding to z_{obt} =  +2.21 is

      P( Z >  2.21) = 0.013553

So the p-value  is

       p-value  =  P( Z >  2.21) = 0.013553

From the values obtained we see that   p-value < \alpha  hence

The decision rule

 Reject the null hypothesis

     

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Which item is NOT a savings instrument?
quester [9]

Answer with explanation:

A: Treasury Bond: In treasury bond  interest is paid till that duration until the bond completely matures. When the period of bond gets over, Actual amount or Par Amount is Returned.

⇒A Saving Instrument.

B. C D

Compact Disc. A type of device that can store data, that is Nanotechnology is used to store more than 500 MB of data.

C: Saving Account

 In saving Account, you can deposit and withdraw money at any time ,any day, with the evolution of new technology.

D: Checking Account

Same with the checking account,you can withdraw and deposit money any time on a day.

→Option A, C and D are , types of account , related with currency that is money, but option B, is term related to data.

Option B: →C D is not a Saving Instrument.

6 0
2 years ago
(3/5) cubed Please explain to me how you would do this
krek1111 [17]
<h3>♫ - - - - - - - - - - - - - - - ~Hello There!~ - - - - - - - - - - - - - - - ♫</h3>

➷  It would be done in the same way it would if it was an integer ;

think of it as two separate parts

(3/5)^3 = 3/5 * 3/5 * 3/5

Calculate the top half, then the bottom half and put them together

3 * 3 * 3 = 27

5 * 5 * 5 = 125

Thus, your answer will be 27/125

<h3><u>✽</u></h3>

➶ Hope This Helps You!

➶ Good Luck (:

➶ Have A Great Day ^-^

↬ ʜᴀɴɴᴀʜ ♡

7 0
3 years ago
Whats 9387c x 732l +99 *DO NOT REPORT TY!*
IRISSAK [1]

Answer:

You did not even start the meeting them you want us to join . Silly

Step-by-step explanation:

6871383

how you doing?

how your day going?

8 0
2 years ago
Read 2 more answers
Which of the following expression is equal to x^2+25?
nignag [31]
A: (x + 5i)^2
= (x + 5i)(x + 5i)
= (x)(x) + (x)(5i) + (5i)(x) + (5i)(5i)
= x^2 + 5ix + 5ix + 25i^2
= 25i^2 + 10ix + x^2


B: (x - 5i)^2
= (x  +   - 5i)(x +  - 5i)
= (x)(x) + (x)(- 5i) + (- 5i)(x) + (- 5i)(- 5i)
= x^2 - 5ix - 5ix + 25i^2
= 25i^2 - 10ix + x^2


C: (x - 5i)(x + 5i)
= (x +  - 5i)(x + 5i)
= (x)(x) + (x)(5i) + (- 5i)(x) + (- 5i)(5i)
= x^2 + 5ix - 5ix - 25i^2
= 25i^2 + x^2


D: (x + 10i)(x  - 15i)
= (x + 10i)(x +  - 15i)
= (x)(x) + (x)(- 15i) + (10i)(x) + (10i)(- 15i)
= x^2 - 15ix + 10ix - 150i^2
=  - 150i^2 + 5ix + x^2



Hope that helps!!!

6 0
3 years ago
Read 2 more answers
Marco paid $36.89 for 8.6 gallons of gas.  What is the price per gallon?
Semenov [28]
36.89 total divided by the 8.6 gallons he bought = 4.2 so the price per gallon would be $4.20
6 0
3 years ago
Read 2 more answers
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