The mean IQ for the U.S. is 100 with a standard deviation of 15. A Troy statistics professor thinks Troy students are smarter than average, so he randomly samples 10 students and records the following IQ data to test his hypothesis. What is the alternative hypothesis for this problem? IQ: 95 100 105 110 115 100 105 110 105 105 O Troy students have an IQ equal to 100 O Troy students have an IQ less than 100 Troy students have an IQ greater than 100 O Troy students have an IQ that is not 100

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

A: The question is about error in hypothesis testing.Introduction :1 ) Hypothesis testing : It is a…

Q: What is/are the difference/s between a one-sided hypothesis and a two-sided hypothesis?

A: Differentiate the two sided and one sided hypothesis.

Q: Define null and alternative hypothesis.

A:

Q: A researcher risks making a Type I error any time the null hypothesis is rejected? state the reason?

A: Type I error:  The type I error can be defined as the probability of rejecting the null hypothesis…

Q: What are the two kids of errors we can make in hypothesis testing?

A: The two kinds of errors are 1)Type 1  2)Type 2  Type 1 Error: It is referred as False Positives. It…

Q: Suppose that you are curious to find out if there is any relationship between gender and alcohol…

A: The chi-square test of independence is used when there are two qualitative (categorical) variables.…

Q: -Find the correct null hypothesis and for each correct alternative hypothesis 6. You want to test…

A: Given : Claim : A higher percentage of males who are Democrat than females who are Democrat.

Q: Explain "null hypothesis"? its properties?

A: Null hypothesis: The null hypothesis is a statement about a population parameter, such as the…

Q: What does it mean if we say that our hypothesis test has a two-sided (or, as it’s sometimes called,…

A: Hypothesis test This test is based on the sample observations. It is used for testing whether the…

Q: With regards to hypothesis testing, define p-value.

A: Answer: To define p- value

Q: Explain any five factors affecting power in hypothesis?

A:

Q: that the mean filling weight is 16 ounces when it actually isn't b. What is the probability of…

A: b)type II error  the researcher concludes that the mean weight is 16 ounces when in reality, it is…

Q: Explain what a null hypothesis and an alternative hypothesis are. Why are these two hypotheses…

A: The null and alternative hypothesis are used in statistical hypothesis testing . The null hypothesis…

Q: Describe about retaining null hypothesis implies.

A: Hypothesis: Hypothesis is an assumption about the parameter of the population which will be made on…

Q: What are the possible outcomes of hypothesis test?

A: Hypothesis: Hypothesis is an assumption about the parameter of the population which will be made on…

Q: Suppose the null hypothesis, H0, is: a patient is not sick. State the Null and Alternative…

A: The test hypotheses are given below: Null hypothesis: H0: A patient is not sick Alternative…

Q: What does null hypothesis ascertain?

A: Hypothesis: Hypothesis is an assumption about the parameter of the population which will be made on…

Q: If a researcher is wrong in his decision and he rejects the null when the null is true, what type of…

A: Type I error: The type I error is the rejection of the null hypothesis when it is actually true.…

Q: What is the importance of the null and alternitive hypotheses?

A: Null and alternative hypotheses

Q: A popular referendum on the ballot is favored by more than half of the voters. Write the null and…

A: Given that  Population proportion p=1/2 p=0.5

Q: What are the basic steps involved in any nonparametric test of hypothesis?

A:

Q: what does failing to rejectthe null hypothesis mean?

A: First, it is possible that the effect truly doesn’t exist in the population, which is why the…

Q: Explain what it means to reject the null hypothesis or fail to reject the null hypothesis.

A:

Q: what is the alternative and null hypothesis for this question

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Q: f you are in this research team, what would you advise with regards to the use of the treatments?…

A: Given:     Additive     A1 A2 A3   2.58 1.26 1.61   2.72 1.96 1.21 cortisol 2.25 1.88…

Q: Discuss errors that can be made when doing a hypothesis test

A: There are two types of errors a researcher can make while testing a Hypothesis : Type I and Type II…

Q: H₁: The distribution of emergency room needs for patients who come by car is the same as it is for…

A: Hi! Thank you for the question. As you have specifically asked for help with parts C and G, we have…

Q: Explain null hypothesis vs alternative hypothesis.

A: In theory of statistics, hypothesis is a statement regarding the parameter of interest.

Q: 1. why do two samples need to be independent when doing a hypothesis test ? 2.  Could you do a…

A: Part 1: Independent samples are samples drawn from same population or different population that are…

Q: Describe about Rejecting null hypothesis implies.

A:

Q: Explain the terms, Null Hypothesis and Alternative Hypothesis with examples

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Q: What type of evidence is needed for a hypothesis to be supported or not supported? O demonstrative…

A: From the given information we find the solution.

Q: If in general a reasearch question needs to be answered by using the null and alternative hypotheses…

A: In testing of hypothesis, the first step is to set the Null and the research hypothesis. The null…