Why is "Ho: "M1 = M2" not a proper null hypothesis?

Q: Formulate the appropriate null and alternative hypothesis.

A: Given: μ=555σ=139n=30

Q: A team of researchers conducted 100 independent hypothesis tests using a significance level of a =…

A: Given that  Total number of independent hypothesis tests done = 100 Significance level (α) = 0.05 =…

Q: What are appropriate conditions to conduct a hypothesis test?

A: Hypotheses: Hypotheses is the plural form for hypothesis. Hypothesis is a statement about the…

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: In statistics why can't we accept the null hypothesis?

A: To perform a hypothesis test, it is first necessary to define an assumed set of conditions…

Q: the difference in the null hypothesis and the alternative hypothesis?

A: In testing of hypothesis, sometimes exact sampling distribution of the test statistic can be…

Q: What would your decision be on this hypothesis test if we use a level of significance for the test…

A: Here given cereal is claimed to have an average of 3 grams of dietary fiber per serving  Here test…

Q: In January 2010, the Pew Research Center did a similar survey about the 2010 Census, reporting that…

A: Given information: p=0.64 p^=0.59 The researcher believe that percentage may have decreased.…

Q: Be able to determine the null hypothesis from a description of an experiment?

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

Q: In a One Way ANOVA, if we fail to reject the null hypothesis, we'll also see that

A: In one way anova at which condition we reject or accept null hypothesis.?

Q: What are the appropriate null and alternative hypotheses

A: Let p be the proportion of people categorized as obese. Claim: The proportion of people categorized…

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: An executive believes that no more than 80% of the company's employees take all of their vacation…

A: We have to find null and alternative hypotheses for given data...

Q: Be able to state the null hypothesis for both one-tailed and two-tailed tests?

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: 5. If a researcher rejects a true null hypothesis, she has made a error.

A: here use basic of statistical error

Q: What is the critical value for a one-tailed hypothesis test in which a null hypothesis is tested at…

A:

Q: When is it valid to use a one-tailed test? What is the advantage of a one-tailed test? Give an…

A: When the claim of the test is to test whether one quantity is more or less than the other quantity,…

Q: pe II error represent the possibility that your rejection of a null hypothesis was incorrec

A: In hypothesis testing, a type I error occurs when the null hypothesis (Ho) is rejected when it is…

Q: Describe type I and type II errors for this hypothesis test?

A: A type 1 error is also known as a false positive and occurs when a researcher reject the null…

Q: 10) The mean age of bus drivers in Chicago is 48.7 years. If a hypothesis test is performed, how…

A: Denote μ as the population mean age of bus drivers.

Q: If a hypothesis is not rejected at the 5% level of significance, it will also not be rejected at the…

A: Concept of p-value: The p-value in hypothesis testing is the probability of obtaining a test…

Q: Will the null hypothesis be rejected at a 5% level of significance?

A: Here sample proportion p⏜ = 0.63 Sample size n = 800 Now testing given hypothesis

Q: the non-directional null hypothesis? What is the alternative hypothesis?

A: Hypothesis in statistics are the statements which need to be tested on the basis of the observed…

Q: It has been determined that 37 out of 100 adult Americans that did not attend college believe in…

A: There are two independent samples which follows normal distribution. We have to test whether the…

Q: Suppose a hypothesis test is performed with a level of significance of 0.05. Then if the null…

A: A type 1 error occurs when a researcher rejects the true null hypothesis, if the significance level…

Q: 7. Time magazine reported the result of a telephone poll of 800 adult Americans. The question posed…

A: Introduction: Denote p1, p2 as the true population proportions of non-smokers and smokers,…

Q: A dentist hypothesizes that the average time a child spends brushing their teeth is less than 60% of…

A: In the given situation, the claim of the problem is "the average time a child spends brushing their…

Q: Identify the null and alternative hypotheses for this test.

A: Test is that whether the percentage of females aged 15 and  older who live alone has changed from…

Q: An insurance company collects data on seat-belt use among drivers in a country. Of 1600 drivers…

A:

Q: What are examples of a null and research hypothesis?

A: In a hypothesis test, Null and Alternate hypothesis are mutually exclusive ( both can not be true at…

Q: State why a non-significant outcome does not mean the null hypothesis is probably true?

A:

Q: Random samples of 100 parts from production line A had 12 parts that were defective and 100 parts…

A: Given: n1 = 100 p1 =12/100 = 0.12 q1 = 1 - 0.12 = 0.88   n2 = 100 p2 = 5/100 = 0.05 q2 = 0.95

Q: It has been determined that 37 out of 100 adult Americans that did not attend college believe in…

A: Consider that p is the true proportion of adults that did not attend college believe in…

Q: Suppose you are asked to conduct a two-tailed hypothesis test on the population mean. What type of…

A: Here we want to conduct two tailed hypothesis test for mean

Q: What are the two types of hypotheses used in a hypothesis test? How are they related? What are the…

A:

Q: If an ANOVA test is conducted and the null hypothesis is rejected, what does this indicate?

A: ANNOVA is a statistical technique that assesses potential differences in a scale-level dependent…

Q: What does the decision to retain null hypothesis implies?

A:

Q: What is difference between null hypothesis and alternative hypothesis?

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

Q: Of a random sample of 95 small-business owners in Rome, Italy 54 said they liked statistical work.…

A: Given, Random sample of small buisness owner is of size n=95 The number of worker who liked…

Q: The mean age of bus drivers in Chicago is 50.6 years. If a hypothesis test is performed, how should…

A: H0: μ =50.6

Q: A survey and research company claims that TV network A garnered 31% audience satisfaction. To test…

A: Given,sample size(n)=2000claim: TV network A garnered 31% audience satisfaction.α=0.05

Q: If a researcher rejects the null hypothesis when conducting a hypothesis test, it means that the…

A: Alternate hypothesis is the claim made by researcher   If the researcher rejects the null…

Q: what is the nully hypothesis and alternative hypothesis

A: Test is that whether there is a significant relationship between a person's age and the number of…

Q: Explain why accepting the null hypothesis is not a possible outcome.

A: Hypothesis:- A statistical hypothesis is some assumption or claim about the population.

Q: How many null hypotheses are associated with a two-way ANOVA?

A: Solution :- There are Three null Hypothesis are associated with a two way anova   Followings are the…

Q: The death penalty is an issue that has caused great debate in the United States. In a Gallup poll,…

A: Given Data: x=319 n=491 p^=xn=319491=0.6497

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.