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olganol [36]
3 years ago
10

A researcher is testing a new painkiller that claims to relieve pain in less than 15 minutes, on average. a. State the hypothese

s associated with the researcher's test. b. Describe a Type I error for this situation. c. Describe a Type II error for this situation.
Business
1 answer:
zmey [24]3 years ago
6 0

Answer:

a. H0 : U ≥ 15

   Ha : U < 15

b. Type I error is incorrectly conclude that the pain is reduced in less than 15 minutes.

c. Type II error is fail to conclude that time for pain reduction is less than 15 mints when actually its less than 15 minutes.

Explanation:

Null hypothesis is a statement that is to be tested against the alternative hypothesis and then decision is taken whether to accept or reject the null hypothesis.

Type I error is one in which we reject a true null hypothesis.

Type II error is one in which we fail to reject the null hypothesis that is actually false.

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Amy borrowed $10,500 to purchase a new Toyota Yaris and agreed to pay back $14,320 in
OleMash [197]

Answer: 60.36%

Explanation:

Interest = Amount - Principal

= 14320 - 10500

= 3820

Time = 220 days

Rate = Unknown

Interest = PRT/100

3820 = (10500 × R × 220/365)/100

3820 = (10500 × R × 0.6027397)/100

3820 = 6328.7671R/100

Cross multiply

3820 × 100 = 6328.7671R

R = 382000/6328.7671

R = 60.36%

The ordinary interest rate was 60.36%

6 0
3 years ago
Which of these does not fall under the "marketplace" umbrella
adoni [48]
Thank you for posting your question here at brainly. I hope the answer will help you. Feel free to ask more questions.

Below are the choices that can be found from other sources:

<span>1.Taxation
2.e-commerce
3.physical places of business
4. Stock market
</span>
I think the answer should be e-commerce 
7 0
4 years ago
Immediately after a hurricane, it is likely that the quantity demanded for tree cutting/removal services will ______ the quantit
kotykmax [81]

Answer:

Immediately after a hurricane, it is likely that the quantity demanded for tree cutting/removal services will "Remain" the quantity supplied, causing the price of tree cutting/removal services to ''Rise''

Explanation:

3 0
3 years ago
(b) The following expenditures relating to plant assets were made by Prather Company during the first 2 months of 2020. Opposite
densk [106]

Answer:

Please see explanation below

Explanation:

1. Paid $5,000 of accrued taxes at time plant site was acquired. - Debit accrued taxes account $5000, credit cash expenses account $5000.

2. Paid $200 insurance to cover possible accident loss on new factory machinery while the machinery was in transit. - Debit freight and insurance in transit $200, credit cash expenses $200.

3. Paid $850 sales taxes on new delivery truck. - Debit sales tax $850, credit expenses $850.

4. Paid $17,500 for parking lots and driveways on new plant site. - Debit land improvements $17,500, credit cash expenses $17,500.

5. Paid $250 to have company name and advertising slogan painted on new delivery truck. - Debit advertisement $250, credit cash expenses $250.

6. Paid $8,000 for installation of new factory machinery. - debit installation costs (under plants and machinery $8000.

7. Paid $900 for one-year accident insurance policy on new delivery truck. - Debit insurance $900, credit cash expenses $900.

8. Paid $75 motor vehicle license fee on the new truck. - Debit licensing fees $75, credit cash expenses $75.

6 0
3 years ago
Read 2 more answers
You have just received a windfall from an investment you made in a​ friend's business. She will be paying you $ 15 comma 555 at
Vilka [71]

Answer:

Present value = $75,379.47

Future value is $91,567.97

Explanation:

a) Present value of cash flow is calculated as:

Present\ value = \frac{(15,555}{1.067} + \frac{(31,110}{(1.067)^2}) + \frac{(46,665}{(1.067)^3})

Present value = $14578.25 + $27,325.69 + $33475.53

Present value = $75,379.47

b) Future value of windfall is calculated as

Future\ value  = present\ value \times (1-r)^n

Future\ value  = 75379 \times (1+ 0.067)^3

Future value is $91,567.97

7 0
3 years ago
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