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brilliants [131]
3 years ago
6

An experimenter has prepared a drug dosage level that she claims will induce sleep for 80% of people suffering from insomnia. Af

ter examining the dosage, we feel that her claims regarding the effectiveness of the dosage are inflated. In an attempt to disprove her claim, we administer her prescribed dosage to 20 insomniacs and we observe Y , the number for whom the drug dose induces sleep. We wish to test the hypothesis H0 : p = 0.8 versus the alternative, Ha : p < 0.8. Assume that the rejection region {y ≤ 12} is used. (a) In terms of this problem, what is a type I error?
Mathematics
1 answer:
Digiron [165]3 years ago
8 0

Answer:

This type of error would lead to the conclusion that the dosage level is less effective than it really is.

Step-by-step explanation:

A Type I error happens when we reject the null hypothesis even when it is true.

In this case, this would happens when the sample taken gives results that end by pure chance in the rejection region, and nont because the null hypothesis is not true.

This type of error would lead to the conclusion that the dosage level is less effective than it really is.

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Many non-profit groups ask for donations during December. Do men give higher monetary donations than women in the month of Decem
Lelu [443]

Answer:

For this case we want to test if do men give higher monetary donations than women in the month of December (alternative hypothesis) and the complement should be the null hypothesis. So then the sytem of hypothesis are:

Null hypothesis:\mu_m -\mu_w \leq 0

Alternative hypothesis : \mu_m -\mu_w >0

So then the best option would be:

d. Ha: mum -muw > 0

Step-by-step explanation:

Previous concepts

A hypothesis is defined as "a speculation or theory based on insufficient evidence that lends itself to further testing and experimentation. With further testing, a hypothesis can usually be proven true or false".  

The null hypothesis is defined as "a hypothesis that says there is no statistical significance between the two variables in the hypothesis. It is the hypothesis that the researcher is trying to disprove".  

The alternative hypothesis is "just the inverse, or opposite, of the null hypothesis. It is the hypothesis that researcher is trying to prove".  

Solution to the problem

For this case we want to test if do men give higher monetary donations than women in the month of December (alternative hypothesis) and the complement should be the null hypothesis. So then the sytem of hypothesis are:

Null hypothesis:\mu_m -\mu_w \leq 0

Alternative hypothesis : \mu_m -\mu_w >0

So then the best option would be:

d. Ha: mum -muw > 0

3 0
3 years ago
The volume of 10,000 drops of a liquid is 100 fluid ounces.
denis-greek [22]

<u>ANSWER</u>: 0.1 ounces

Step-by-step explanation:

Volume of 10,000 drops of a liquid=100 fluid ounces

Volume of 1 drops of a liquid=(100/10,000) fluid ounces

Volume of 10 drops of a liquid=(100/10,000)*10 fluid ounces

=(1/10) ounces

=0.1 ounces [ANS]

5 0
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10 more on sat. then on sun.
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Answer:

6/30 for a multiple of 3 and 4/20 for a multiple of 5

Step-by-step explanation:

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The correlation of SAT scores and grade point averages (GPAs) for a random sample of high school students is represented by the
fredd [130]

Answer:

Step-by-step explanation:

A

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