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MatroZZZ [7]
3 years ago
11

g A pharmaceutical manufacturer has been researching new formula to provide quicker relief of minor pains. His laboratories have

produced several different formula which he wanted to test. Fifteen people who complained of minor pains were recruited for an experiment. Five were given formula 1, five were given formula 2, and the last five were given formula 3. Each was asked to take the medicine and report (X) the length of time until some relief was felt. Using the results of the output, at 0.05 level of significance, what is the critical value for testing differences in the population mean times for pain relief
Mathematics
1 answer:
evablogger [386]3 years ago
6 0

Answer:

Step-by-step explanation:

From the question we are told that

   The sample size is  n =  15

   The  level of significance is  \alpha =  0.05

The null hypothesis is  H_o:\mu_1 = \mu_2 = \mu_3

The alternative hypothesis is H_a : \mu_1 \ne \mu_2 \ne \mu_3

Generally the degree of freedom is mathematically represented  as

       df  =  5 +  5 +  5  - 3

=>     df  =  12

Generally the critical value of \alpha =  0.05 at a degree of freedom of df  =  12 is

        t_{0.05 , 12} = \pm 2.1788

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The answer is B. 23+2x>100
8 0
3 years ago
Read 2 more answers
a big water tank contained 200 litres of water. during the day, 88 l 580 ml of water was used and 200 ml leaked. how much water
algol13

The quantity of water left in the tank as described in the task content is; 111 l 220ml.

<h3>What is the amount of water left in the tank?</h3>

The tank described in the task content initially contains 200 liters, in which case, 1 liter corresponds to 1000ml.

Hence, when 88l 580ml was used, the remaining quantity of water is; 200l - (88l 580ml) = 111 l 420ml.

And finally, since 200 ml leaked, the quantity of water left is; 111l 220ml.

Read more on subtraction;

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3 0
1 year ago
The answer ASAP I don’t understand this at all
RSB [31]

Answer:

T = 530N + 250

Step-by-step explanation:

For the first plan, Heather will deposit $250 and then save $135 per month.

So, that is 250 + (135 x N) where N is the number of months she saves the $135.

So if it is for 3months,

We will have:

t¹ = 135N + 250

= 250 + (135 x 3)

= 250 + 405

= $655

For the second plan, there is no initial deposit, but she will save $395 per month.

That is 395 x N

t² = 395N

For 3months, we have 395 x 3 = $1185

Therefore the total for both plans in 3months = 655 + 1185 = $1840

Equation relating T to N

T = t¹ + t²

T = (135N + 250) + 395N

T = 135N + 250 + 395N

T = 530N + 250

5 0
3 years ago
I need help with this math question
Blababa [14]
The answer is 1206 cm. The formula for the volume of this cone is 1/3 • 3.14 • 12(2) • 8.
Which gives you 1205.76 which is rounded up to 1206.

The (2) means the second power so it’s 12 to the second power.
5 0
2 years ago
2. You are trying to determine which box of Honey Nut Cheerios to buy. The Family Size box weighs
mihalych1998 [28]

Answer:

Step-by-step explanation:

Of course it is MEGA, it is a common sense for everyone to know that buying bigger bulk results in cheaper price. But I will do the math for you:

MEGA size: 5 / 29.4 = 0.17 dollars per pound

Family size: 3.64 / 19.5 = 0.19 dollars per pound

so it is MEGA

5 0
3 years ago
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