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stepladder [879]
3 years ago
6

Arachnophobia is the fear of spiders. People with arachnophobia suffer to different degrees, but they tend to react intensely to

visible signs of the presence of spiders, such as webs. The director of a clinic decides to investigate different treatment types for arachnophobia. She gathers three groups of clients: One group receives in vivo flooding, which involves prolonged or repeated exposure to the actual anxiety-producing stimuli. The second group receives imaginal flooding, which involves the same techniques as in vivo flooding, except the exposure occurs in the client’s imagination. The third group receives no treatment. The results come in, and a statistician conducts an analysis of variance.
The ___________ is that there is no difference between the population means (in other words, there is no treatment effect).
The ___________is that at least one of the population means is different from another (in other words, there is an effect Of at least one Of the treatments).
Mathematics
1 answer:
zepelin [54]3 years ago
7 0

Answer:

1. The null hypothesis is that there is no difference between the population means (in other words, there is no treatment effect).

2. The<u> alternative hypothesis</u> is that at least one of the population means is different from another (in other words, there is an effect Of at least one Of the treatments).

Step-by-step explanation:

In a statistical analysis, the statistician shares his participants into several groups and administers treatments to them. After administering the treatment, he might want to compare the values obtained to see if there is a difference. If he accepts the null hypothesis as true, that means that there was no difference between the population means. This can also be taken to mean that the result had no difference among the groups.

But if the alternative hypothesis was true, that means that the population means were not all equal and so, there was an effect from the treatment administered.  

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Victor Malaba has a net income of $1,240 per month. If he spends $150 on food, $244 on a car payment, $300 on rent, and $50 on s
blondinia [14]
I'm pretty sure it's 496.
7 0
2 years ago
Find A∩ (B∪ C)
ololo11 [35]

Answer:

2,4

Step-by-step explanation:

(2,3)

(2,5)

(5,8)

7 0
2 years ago
Help with math homework please!
yuradex [85]

The correct answer is:  [C}:  " 3 ⁻ ¹ " .

___________________________

<u>Note</u>:  " 3 =  3 ¹  " .

     →   "  3 ⁻ ¹  =  1 / (3 ¹)  = 1 /3 =  \frac{1}{3} " .

_______________________

Let us consider the remaining answer choices:

_______________________

Choice  [A}:  " ( - 1)³ " .    

<u>Note</u>:  " ( - 1)³ "  =  " { - 1 * - 1 * - 1 } " =  " -1 " .  

                →  " -1 " ≠ " \frac{1}{3} " .

                →  So; Choice  [A} is INCORRECT.

___________________________

Choice  [B]:  " (- 3)¹ " .

<u>Note</u>:  " ( - 3)¹ "  =  " -3 " .

                →  " -3 " ≠ " \frac{1}{3} " .

                →  So;  Choice  [B] is INCORRECT.

___________________________

    →  The correct answer is:  [C]: "  3 ⁻ ¹  . "

__________________________

Hope this was helpful!

Best of luck to you!

__________________________

8 0
3 years ago
If 2/3 inch on a map corresponds to an actual distance of 9 miles what distance on the map will represent 21 miles
weeeeeb [17]
2/3in=9mi
?in=21mi

we can set up a ratio and proportion, but I would fix that fractions because they tend to be messy

2/3in=9mi
multiply both sides by 3
2in=27mi

so now we have
2in:28mi=?in:21mi
\frac{2in}{28mi}=\frac{?in}{21mi}
multiply both sides by 21mi
the miles cancel and we get
\frac{42in}{28}=?in
1.5in=?in

1.5 inches represents 21 miles
3 0
3 years ago
In 2007, the FDIC’s insurance limit was $100,000 per person per bank. If Sam had a $150,000 savings account and $80,000 checking
Oksi-84 [34.3K]
Alright, let's look at each individual bank. For each bank, only up to 100k is insured.

Bank J = 150,000+80,000 -> 230,000 but only 100,000 is insured.
Bank K = 95,000 -> 95,000 insured.
Bank L = 200,000 -> 100,000 insured.
Adding those together...
100,000 + 95,000 + 100,000 = 295,000
So, A is the correct answer.
5 0
3 years ago
Read 2 more answers
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