In Exercises, hypothesis tests are proposed. For each hypothesis test, a.determine the null hypothesis.b.determine the alternative hypothesis.c.classify the hypothesis test as two tailed, left tailed, or right tailed. Grey-Seal Nursing. Grey seals are one of several types of earless seals. The length of time that a female grey seal nurses her pup is studied by S. Twiss et al. in the article “Variation in Female Grey Seal (Halichoerus grypus) Reproductive Performance Correlates to Proactive-Reactive Behavioural Types” (PLOS ONE 7(11): e49598. doi:10.1371/journal.pone.0049598). The average lactation (nursing) period of all earless seals is 23 days. A hypothesis test is to be performed to decide whether the mean lactation period of grey seals differs from 23 days.

Q: Discuss type I and type II errors in hypothesis testing. Give an example of each type oferror

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A: 1)False  2)True 3)False

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A: Correct answer is  (D)

Q: Discuss what the two populations are in a hypothesis test?

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A: The objective is to explain the difference between an independent and dependent sample.

Q: In the hypothesis-testing procedure, there is a single sample and a known population that is called

A: When there is a single population with known population, then it is called one sample z-test.

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A: See the solution

Q: to understand the data set

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A: The non-directional hypothesis is the two tailed hypothesis.

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Q: Conduct a Levene Test and Tukey-Kramer Procedure. What observations can you make about the data

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Q: b-2. Find the p-value. O p-value < 0.005 O 0.010 Picture p-value < 0.025 O 0.025 Picture p-value <…

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A: Given that In a single-tail hypothesis test

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Confidence Intervals

When we calculate intervals in probability and statistics, it can be simply termed as finding out a confidence interval. The confidence interval is usually calculated from the data set which is observed. The value of the parameter that needs to be calculated is present here only.