A presidential candidate claims that the proportion of college students who are registered to vote in the upcoming election is at least 66%. Suppose that we want to sample a number of college students and carry out a hypothesis test to see if this claim may be refuted. State the null hypothesis H and the alternative hypothesis H, that we would use for this test.

Q: ) What conclusions can be drawn from this hypothesis test?

A: a) H0:μ=15.7VersusHa:μ<15.7   Level of significance valueα=0.05 Test statistic value of T = x-μsn…

Q: If the null hypothesis is rejected at a level of significance of 5%, then in some cases, it could be…

A: We have to find the statement is true or false..

Q: A politician believes that 60% of constituents are in favor of a particular issue. She takes a…

A: Null hypothesis:A statistical hypothesis which is assumed and whose validity is tested for possible…

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

A: Given data, p=71% =0.71   State Null and Alternative hypothesis.

Q: If the null hypothesis is false and the researchers do not reject it, a Type I error has been made.…

A: We know that- Type I error- Rejecting the null hypothesis when it is actually true. Type II error-…

Q: if the null hypothesis should be rejected and researchers reject it they have committed.? which of…

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

Q: A toy manufacturer claims that the meantime that its top-selling toy captures children's attention…

A: We have given that claims that the meantime that its top-selling toy captures children's attention…

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: A certain university claims that for the last school year the proportion of students who were not…

A: Given: Claim: The proportion of students who were not able to earn a college diploma is at most 25%…

Q: Researcher A uses a sample of n = 100 for their hypothesis test while Researcher B uses a sample of…

A: Standard error is the error due to random sampling. Population is the set of all objects of…

Q: A poll reported that 32% of 180 Canadians between the ages of 25 and 29 had started saving money for…

A: From the provided information,

Q: Are the requirements met to test a hypothesis for the following two population proportions? If not,…

A: Conditions for testing the population proportion: The samples should be selected at random. The…

Q: A group of doctors is deciding whether or not to perform an operation. Suppose the null hypothesis,…

A: Type 1 error It can be stated as the surgery will go well, but the doctors think that the surgery…

Q: The National Center for Education Statistics would like to test the hypothesis that the proportion…

A:

Q: The shop floor manager in a dairy company believes that the milk packaging process unit for 1 liter…

A: Null hypothesis:  A hypothesis of no difference is called as null hypothesis. It is denoted by H0…

Q: When the p-value is used for hypothesis testing, the null hypothesis is rejected if _____.…

A: Definition: The p-value can be defined as the probability of obtaining a test statistic that is at…

Q: what would happen if you mixed up the null and alternative hypothesis

A: The hypothesis that there is no significant difference between specified populations, any observed…

Q: -Find the correct null hypothesis and for each correct alternative hypothesis 1. Suppose a pollster…

A:

Q: Define the Null Hypothesis and give an example

A: In statistics null hypothesis say that there is no statistical significance. It generally states…

Q: what might a alternative hypothesis be called?

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

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: What is the null and alternative hypothesis?

A: Test is that whether mean time for painting a medium-sized room without using the tool is greater…

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: A newsletter publisher believes that 68% of their readers own a Rolls Royce. Is there sufficient…

A: Given data, p=68%=0.68 α=0.02

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: Two observational studies of handwashing times were conducted with 59 men and 59 women.  Of the 59…

A: Let p1 population proportion of women not washing their hands, and p2 population proportion of men…

Q: come up with your own hypotheses. Write both the null and alternative for a one-tailed hypothesis.

A:

Q: A recent survey of college campuses across Ontario claims that on average students spend more than…

A: Given : Claim : Average students spend more than 2.7 hours a day using their cell phones.

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: What is the null hypothesis H0 and the alternative hypothesis H1?

A: Here p=76%              =76/100            =0.76 So null and alternative hypothesis is  Null…

Q: A study done on a marriage counseling course showed that the proportion of couples for which the…

A: Claim:The proportion of couples for which the communicationprogram can prevent divorce is less than…

Q: the parameter value for the null hypothesis is what?

A: The null hypothesis states that the parameter is equal to the hypothesized value, against the…

Q: The alternative hypothesis, denoted by H1, represents the opposite of the null hypothesis and is…

A:

Q: A researchers claims 45% of couples have children. They conduct a hypothesis test and reject the…

A: Type I Error : Reject H0 when H0 is true.

Q: It has recently been claimed that 25% of adults consider spring to be their favorite season of the…

A: From the provided information, Population proportion (p) = 0.25 A researcher is skeptical of this…

Q: A recent article in a university newspaper claimed that the proportion of students who commute more…

A: Claim : The proportion of students who commute more than 15 miles to school is no more than 20%. Let…

Q: If your claim is in the alternative hypothesis and you fail to reject the null hypothesis, then your…

A: Null hypothesis is denoted H0 and alternative hypothesis is denoted H1 or Ha

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

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

Q: The proportion of residents in a community who recycle has traditionally been 65%. A policy maker…

A: The proportion of residents in a community who recycle has traditionally been 65%. A policy maker…

Q: Suppose we suspect a coin is not fair — we suspect that it has larger chance of getting tails than…

A: Consider that p is the true proportion of occurrence of head.

Q: The goal of research is to prove that the null hypothesis is true. True False

A:

Q: A newsletter publisher believes that 29% of their readers own a laptop. Is there sufficient evidence…

A: Let p be the proportion for readers own a laptop  Given p=29%=0.29, level of significance ɑ=0.05

Q: If we do not reject the null hypothesis when the null hypothesis is in false, then we have made a

A: Solution: Type I error: Reject the null hypothesis even though it is true.

Q: Suppose that you wish to conduct hypothesis tests on the following scenarios: (i) A medical PSA…

A: Type I error  Reject H0 when it is true   Type II error Fail to reject H0 when it is not true

Q: Which is the alternative hypothesis?

A: Let the independent variable x denote the persons age Let the dependent variable y denote the number…

Q: A hospital claims that the proportion of full-term babies born in the hospital who weigh less than…

A: null hypothesis H0: p=0.42 i. e. proportion of full-term babies, born in the hospital who weigh less…

Q: If I conduct a hypothesis testing with type 1 error set at 0.5 and a resulting p-value of 0.3 what…

A: Solution: type 1 error set at 0.5   p-value of 0.3  To find: conclusion of the test

Q: A school board in a large district is investigating whether parents would be willing to extend the…

A: Conditions for the sampling distribution of the sample proportion to be approximately normal is…

Q: Can you state the null hypothesis H0 and the alternative hypothesis H1?

A: It is given that the proportion p of residents in a community who recycle has traditionally been…

Q: A software company advertises that its software can improve students' grades by at least 15%.  One…

A: Types of errors: Rejecting a true null hypothesis is called a Type I error. Failing to reject a…

Equations and Inequations

Equations and inequalities describe the relationship between two mathematical expressions.

Linear Functions

A linear function can just be a constant, or it can be the constant multiplied with the variable like x or y. If the variables are of the form, x2, x1/2 or y2 it is not linear. The exponent over the variables should always be 1.