Questions
In a certain population of mussels (mytilus edulis) 80% of the individuals are infected with an...

In a certain population of mussels (mytilus edulis) 80% of the individuals are infected with an intestinal parasite. A marine biologist plans to examine 100 randomly chosen mussels from the population. Let ? represent the number of mussels in this sample with the intestinal parasite.

9) Clearly state the distribution that ? follows, Explain why you picked this distribution? State the distribution we may use to approximate it.

10) Approximate the probability that between 75% and 90% (inclusive) of the mussels in the sample are infected. Note: show your R code for calculating the probability under the normal curve or z-value.

In: Statistics and Probability

In a certain population of mussels (mytilus edulis) 80% of the individuals are infected with an...

In a certain population of mussels (mytilus edulis) 80% of the individuals are infected with an intestinal parasite. A marine biologist plans to examine 100 randomly chosen mussels from the population. Let ? represent the number of mussels in this sample with the intestinal parasite.

9) Clearly state the distribution that ? follows, Explain why you picked this distribution? State the distribution we may use to approximate it.

10) Approximate the probability that between 75% and 90% (inclusive) of the mussels in the sample are infected. Note: show your R code for calculating the probability under the normal curve or z-value.

In: Statistics and Probability

2. Imagine that you are elected the Chairman of the Fed and your goal is to...

2. Imagine that you are elected the Chairman of the Fed and your goal is to keep both unemployment and inflation under control. This means that unemployment should be at its natural rate (e.g. 5%) and inflation at/around 2%. Can you achieve the two goals simultaneously? Why or why not? Explain in detail.

In: Economics

The following example comes from Statistics: Concepts and Controversies, by David Moore and William Notz. Find...

The following example comes from Statistics: Concepts and Controversies, by David Moore and William Notz.

Find an example of one of the following:

1. Leaving out essential information

2. Lack of consistency

3. Implausible numbers

4. Faulty Arithmetic

Explain in detail the statistical shortcomings of your example.

In: Statistics and Probability

Question 1. a) Modern Methods of Construction (MMC) is a term which has been commonly applied...

Question 1. a) Modern Methods of Construction (MMC) is a term which has been commonly applied to construction activities. Using your own words supported by references, provide an explanation of MMC and detail the technical construction procedures classified as MMC and explain how these differ from traditional construction

In: Civil Engineering

Malaysia has many alternative resources for energy and the country has started with several projects in...

Malaysia has many alternative resources for energy and the country has started with several projects in the alternative energy sector. However, with the COVID19 Pandemic the price of traditional fuel has gone down. Do You still advise to continue with alternative energy projects and explain your in detail answer?

In: Civil Engineering

Please no cursive Two types of medication for hives are being tested. The manufacturer claims that...

Please no cursive

Two types of medication for hives are being tested. The manufacturer claims that the new medication B is more effective than the standard medication A and undertakes a comparison to determine if medication B produces relief for a higher proportion of adult patients within a 30-minute time window. 20 out of a random sample of 200 adults given medication A still had hives 30 minutes after taking the medication. 12 out of another random sample of 200 adults given medication B still had hives 30 minutes after taking the medication. The hypothesis test is to be carried out at a 1% level of significance.

  1. State the null and alternative hypotheses in words and in statistical symbols.
  1. What statistical test is appropriate to use? Explain the rationale for your answer.

  1. Would the test be right-tailed, left-tailed or two-tailed? Explain the rationale for your answer.

  1. Describe an outcome that would result in a Type I error. Explain the rationale for your answer.

  1. Describe an outcome that would result in a Type II error. Explain the rationale for your answer.

In: Statistics and Probability

two types of medication for hives are being tested. The manufacturer claims that the new medication...

two types of medication for hives are being tested. The manufacturer claims that the new medication A is more effective than a standard medication B an under takes a comparison to determine if medication a produces relief for a higher proportion of adult patients within a 40 minute time window. In a random sample of 40 adults given medication A, 34 hours symptom-free after 40 minutes. In a random sample of 34 adults given medication B, 28 were symptom-free after 40 minutes. The hypothesis test is to be carried out at a 1% level of significance.

1. State the normal and alternative hypotheses in words and in statistical symbols.
2. what statistical test is appropriate to use? Explain the rationale for your answer.
3. with the test be right tail, left tailed or two tailed? Explain the rationale for your answer.
4. describe an outcome that would result in a type 2 error. Explain the rationale for your answer
5. describe an outcome that would result in a type one error. Explain the rationale for your answer.

In: Statistics and Probability

Two types of medication for hives are being tested. The manufacturer claims that the new medication...

Two types of medication for hives are being tested. The manufacturer claims that the new medication B is more effective than the standard medication A and undertakes a comparison to determine if medication B produces relief for a higher proportion of adult patients within a 30-minute time window. 20 out of a random sample of 200 adults given medication A still had hives 30 minutes after taking the medication. 12 out of another random sample of 200 adults given medication B still had hives 30 minutes after taking the medication. The hypothesis test is to be carried out at a 1% level of significance.

  1. State the null and alternative hypotheses in words and in statistical symbols.
  2. What statistical test is appropriate to use? Explain the rationale for your answer.
  3. Would the test be right-tailed, left-tailed or two-tailed? Explain the rationale for your answer.
  4. Describe an outcome that would result in a Type I error. Explain the rationale for your answer.
  5. Describe an outcome that would result in a Type II error. Explain the rationale for your answer.

In: Statistics and Probability

Two types of medication for hives are being tested. The manufacturer claims that the new medication...

Two types of medication for hives are being tested. The manufacturer claims that the new medication B is more effective than the standard medication A and undertakes a comparison to determine if medication B produces relief for a higher proportion of adult patients within a 30-minute time window. 20 out of a random sample of 200 adults given medication A still had hives 30 minutes after taking the medication. 12 out of another random sample of 200 adults given medication B still had hives 30 minutes after taking the medication. The hypothesis test is to be carried out at a 1% level of significance.

A) State the null and alternative hypotheses in words and in statistical symbols.

B) What statistical test is appropriate to use? Explain the rationale for your answer.

C) Would the test be right-tailed, left-tailed or two-tailed? Explain the rationale for your answer.

D) Describe an outcome that would result in a Type I error. Explain the rationale for your answer.

E) Describe an outcome that would result in a Type II error. Explain the rationale for your answer.

In: Statistics and Probability