A researchers claims 45% of couples have children. They conduct a hypothesis test and reject the null hypothesis. What type of error could have been committed here? Type 1, type 2, or power if the test?

Q: What is a Null Hypothesis? What does the word “null” mean? How does the Null Hypothesis differ from…

A: We have to define null hypothesis.

Q: If we do not reject the null hypothesis, can we claim to have proven that the null hypothesis is…

A: Given statement If we do not reject the null hypothesis , can we claim to have proven that the null…

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: A paint manufacturer advertises that one gallon of its paint will cover 400 square feet of an…

A: For paint manufacturer, The null and alternative hypothesis are : Ho : μ=400H1 : μ<400  For…

Q: are conducting a study to see if the accuracy rate for fingerprint identification is significantly…

A: A hypothesis is said to be left tailed, if the population parameter is less than some hypothesized…

Q: Problems pertain to the P-value approach to hypothesis testing. Assess the evidence against the null…

A: The below table explains the evidence against null hypothesis corresponding to the p-values:

Q: The mayor of Lawrenceville indicated in a news interview that the percentage of students at GGC…

A: GivenThe claim isThe mayor of Lawrenceville indicated in a news interview that the percentageof…

Q: The mathematics department at one university reports that the failure rate for College Algebra is no…

A: 2 types of errors. Type 1: Rejecting null hypothesis when it is True Type 2: Fail to reject null…

Q: survey was conducted that asked AHC (Population 1) students and Cuesta students if they drive to…

A: Solution : Given information: p1^= 0.72  Sample proportion of AHC p2^=0.62 Sample proportion of…

Q: Perform a one-sided hypothesis test to a 0.05 level of significance, to determine whether or nat the…

A:

Q: Come up with your own hypothesis testing scenario. What is an example of a null and research…

A: Suppose it is claimed that the average weekly salary of a waiter at restaurant in USA is $800 with…

Q: 1. a) What are the two decisions that you can make from performing a hypothesis test? b) In your own…

A: (a) Two decisions that can be made based on the result of a hypothesis test are: Reject the null…

Q: which figure is the null hypothesis, and which figure is the alternative hypothesis

A: The null hypothesis is denoted by Ho and alternative hypothesis is denoted by Ha or H1.

Q: Since the latest Axios poll said that 44% of Americans said that kneeling was appropriate, we will…

A: After asking the 50 people , Lets assume : Number of people who said kneeling during national anthem…

Q: If a hypothesis test leads to the rejection of the null hypothesis, a have been committed. Type I…

A: Given that the hypothesis test leads to the rejection of the null hypothesis.

Q: Which of the two hypotheses is the researcher always testing to reject or not?

A: The hypotheses are null and alternative hypothesis.

Q: If you conduct a hypothesis test every so often at a 95% level, about what fraction of the time do…

A:

Q: What does it mean if you reject the null hypothesis? What do you mean if you fail to reject the null…

A: The null hypothesis is denoted by H0 and alternative hypothesis is denoted by H1 . The null…

Q: Explain what it means to accept the null hypothesis?

A: We need to define null and alternative hypothesis.

Q: What's the null hypothesis?

A: Test is that whether that treatment has in increasing effect on the mean.

Q: A decade-old study found that the proportion of high school seniors who felt that "getting rich" was…

A: We have to find out given null and alternative hypothesis that we would use for this hypothesis…

Q: Explain why the null hypothesis should not be accepted?

A: The hypothesis which is tentatively fixed up and tested for the possible rejection of it under the…

Q: Consider the use of metal detectors in airports to test people for concealed weapons. In essence,…

A: Hi! Thank you for the question, As per the honour code, we are allowed to answer three sub-parts at…

Q: A random sample of 100 students at a high school was asked whether they would ask their father or…

A: There are two independent samples which are follows normal distribution. The number of successes,…

Q: A college informs incoming students that the starting salary for a child clinical psychiatrist is…

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

Q: Traditionally in hypothesis testing, the null hypothesis represents the "status quo" which will be…

A: here given , Traditionally in hypothesis testing, the null hypothesis represents the "status quo"…

Q: What is step 5 of hypothesis testing ?

A: Step 1: Specify the Null hypothesis and Alternative hypothesis. In this step, will describe the…

Q: You complete a hypothesis test using α = .05, and based on the evidence from the sample, your…

A: Type II error : The probability of accepting ( not rejecting ) the null hypothesis H0 when the…

Q: when do we reject the null hypothesis?

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

Q: The average person spends over 5 years of his or her life on social media. State the null and…

A: The average person spends over 5 years of his or her life on social media.  Here we use hypothesis…

Q: A professor suspects that the more often students attend their online lecture the better they will…

A: Here Given  Professor claims that more often students attend their online lecture the better they…

Q: Come up with you own hypothesis testing scenario. What are examples of a null and research…

A: Suppose we have the age of the male and female of the city. and to find the claim that the mean age…

Q: 24. What is your decision regarding the null hypothesis? Reject or Fail to Reject

A: Using the given figure, we need to test for the significance of correlation coefficient between X…

Q: A Gallup Poll in November of 2008 showed that 22% of men (110 out of 500) said they were seriously…

A:

Q: Q2. a) Discuss the methods to be used for hypothesis testing. b) Approximately 60% of all part-time…

A: Given: n=100 α=0.05

Q: A presidential candidate claims that the proportion of college students who are registered to vote…

A: Claim : The proportion of college students who are registered to vote in the upcoming election is at…

Q: A college informs incoming students that the starting salary for a child clinical psychiatri:…

A: The null hypothesis is a typical statistical theory which suggests that no statistical relationship.…

Q: What is a null hypothesis?

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

Q: A psychologist claims that more than 5.8 percent of the population suffers from professional…

A: Alternate Hypothesis is the hypothesis claimed by the researcher   Therefore, H1: p>5.8%

Q: Give introduction to Hypothesis Testing?

A:

Q: Give Steps of hypothesis testing ?

A: Given: Hypothesis-testing:

Q: (a) Identify the null hypothesis and alternative hypothesis.

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

Q: Refer to the Bayer Aspirin problem: a) Suppose the hypothesis-testing problem was changed to a…

A: According to the given information  Null hypothesis  The null hypothesis that there is no…

Q: 19. An internet provider claims 80% of user have netflix on their tablets. You doubt this claim,…

A: A. The following null and alternative hypotheses need to be tested: Ho: p = 0.80Ho:p=0.80 Ha: p…

Q: In a large University, a group of students is being charged with dishonesty in taking the final…

A: In the University, the group is being charged with dishonesty Also given that the discipline…

Q: If one rejects the null hypothesis at the 5% level, then there is a 5% chance that you made the…

A: Given, If one rejects the null hypothesis at the 5% level, then there is a 5% chance that you made…

Q: A large manufacturing firm is being charged with discrimination in its hiring practices. (a) What…

A: Given data:  large manufacturing firm is being charged with discrimination in its hiring practices.…

Q: Why is the null hypothesis H0: μ = 0?

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

Estimation

A new framework of data analysis where the new statistical methods are used for interpreting the results and analyzing the data is known as estimation in statistics.