poll of 946 college students revealed that 30.2% of them work a full-time job. At the .03 level of significance, test the claim that less than 33% of college students work full-time. Find the claim, Null Hypothesis (H0), and Alternative Hypothesis (H1).                                    Find the critical value.                                      Find the test statistic.                                    Find the p-value.                                 Do you reject or fail to reject the null hypothesis?                                      State your conclusion. -Is there sufficient evidence or not?

Q: A small P-value for a test of significance is: evidence against the null hypothesis. evidence for…

A:

Q: Historically, the percentage of U.S. residents who support stricter gun control laws has been 55%. A…

A: It is given that the population proportion is 0.55  The favorable case x=1723 and the sample size…

Q: A teacher is interested in whether the number of bullying incidents by active bullies varies by…

A:

Q: when we will be reject the NULL HYPOTHESIS on the basis of

A: Hello! As you have posted 2 different questions, we are answering the first question. In case you…

Q: Use the given information to find the P-value. Also, use a 0.05 significance level and state the…

A: Given: Level of significance = 0.05 Right tailed test. Test statistic Z = 1.43

Q: management dean claims that out of 14,700 students who took the midterm examination, 10,016 received…

A: Solution

Q: Test the claim that the proportion of people who are confident is smaller than 90% at the 0.025…

A: A well-known brokerage firm executive claimed that 90% of investors are currently confident of…

Q: The U.S. Bureau of Labor Statistics reports that 11.3% of U.S. workers belong to unions (BLS…

A: Given Information Hypothesized proportion p = 0.113 n = 400 x = 52 Sample proportion is given by

Q: A well-known brokerage firm executive claimed that 80% of investors are currently confident of…

A:

Q: management dean claims that out of 14,700 students who took the midterm examination, 10,016 received…

A: Solution-: Given: We test is there sufficient evidence to reject the dean’s claim? (a) By critical…

Q: Past studies have indicated that the percentage of smokers was estimated to be about 35%. Given the…

A:

Q: In 2017, 32% of business owners gave a holiday gift to their employees. A 2018 survey of 33 business…

A:

Q: Historically, the percentage of U.S. residents who support stricter gun control laws has been 55%. A…

A: The hypothesized proportion is 0.55.

Q: A computer manufacturer believes that the proportion of hardware malfunctions is different in humid…

A: Given, The manufacturer takes a random sample of 400 machines sold in Florida (humid) and 400…

Q: According to the most recent General Social Survey, 70% of adults watch TV nightly. A researcher…

A:

Q: Historically, the percentage of U.S. residents who support stricter gun control laws has been 55%. A…

A: Solution: 8. Let X be number people are in favor of stricter gun control and n be the sample number…

Q: Are blonde female college students less likely to have boyfriends than brunette female college…

A:

Q: Test the claim that the proportion of men who own dogs is smaller than the proportion of women who…

A: From the provided information, The claim is that the proportion of men who own dogs is smaller than…

Q: Past studies have indicated that the percentage of smokers was estimated to be about 35%. Given the…

A: Since you have posted a question with multiple sub-parts, we will solve first three subparts for…

Q: Past studies have indicated that the percentage of smokers was estimated to be about 31%. Given the…

A: Hey there! Thank you for posting the question. Since your question has more than 3 parts, we are…

Q: A survey claims that 9 out of 10 doctors recommend brand W for their patients who have children. To…

A:

Q: A statistical test of hypothesis produces the P-value P = 0.112.  Will the null hypothesis be…

A: Decision rule : Reject H0 if P-value  <  α

Q: A well-known brokerage firm executive claimed that 60% of investors are currently confident of…

A: Given that P =0.60 ,n =800 ,p^ = 0.58

Q: Historically, the percentage of U.S. residents who support stricter gun control laws has been 55%. A…

A: Given,sample size(n)=2500no.of people favor of stricter gun control laws(x)=1723

Q: A medical researcher claims that 5% of children have asthma.In a random sample of 100 children 7.2%…

A:

Q: A researcher has observed 500 vehicles at a stop in a suburban neighborhood and recorded the type of…

A:

Q: A doctor's office believes the number of flu cases is decreasing. The doctor's office would like to…

A: Given information Hypothesis

Q: Last year, television station WXYZ's share of the 11 P.M. news audience was approximately equal to,…

A: Given : p = 0.25 x = 146 n = 400 p^ = xn   = 146400   = 0.365

Q: the percentage of adults who approve of labor unions has decreased since​ 1936? What are the…

A: Given : Claim :  The percentage of adults who approve of labor unions has decreased since​ 1936.

Q: Test the claim that the proportion of people who are confident is larger than 60% at the 0.10…

A: Claim is that the proportion of people who are confident is larger than 60%. Sample size n = 400…

Q: In a clinical trial, 227 subjects were treated with a pain medicine and 52 of them developed nausea.…

A: Givensample size(n)=227x=52p^=xn=52227=0.2291α=0.05

Q: A sample of 45 households reveals that 23% have traveled overseas. Is this significantly different…

A: Stating the appropriate null and alternative hypotheses: The hypotheses are given below: Null…

Q: Historically, the percentage of residents of a certain country who support stricter gun control laws…

A: State the hypotheses. That is, the population proportion that supports stricter gun control equals…

Q: A well-known brokerage firm executive claimed that 50% of investors are currently confident of…

A: Consider that p is the true proportion of people who are confident.

Q: Past studies have indicated that the percentage of smokers was estimated to be about 30%. Given the…

A: The population proportion of smokers is denoted by p. The claim is “The percentage of smokers has…

Q: Quit smoking: In a survey of 444 HIV-positive smokers,194 reported that they had used a nicotine…

A: Given,   The sample proportion is,

Q: Historically, the percentage of U.S. residents who support stricter gun control laws has been 55%. A…

A: Given : Claim : The proportion of those favoring stricter gun control has changed from 0.55.

Q: Historically, the percentage of U.S. residents who support stricter gun control laws has been 55%. A…

A: Given problem is :

Q: In 1990, 58% of Americans 18 years old and older reported they have a great deal of concern…

A: Introduction: Here, the hypothesized proportion is given as 58% or p = 0.58. The researchers collect…

Q: Past studies have indicated that the percentage of smokers was estimated to be about 30%. Given the…

A:

Q: 20% of all college students volunteer their time. Is the percentage of college students who are…

A: It is given that the number of students who volunteered their time (x) is 61 and the sample of…

Q: Is there a difference between men and women when it comes to seeking preventative healthcare? At the…

A: The random variable preventative care follows binomial distribution. There are two independent…

Q: Historically, the percentage of U.S. residents who support stricter gun control laws has been 55%. A…

A: We want to test the hypothesis

Q: A two-tailed hypothesis test is being used to evaluate a treatment effect with α = .05. If the…

A: Solution: State the hypotheses. Null hypothesis: H0: The treatment has no effect. Alternative…

Q: ll-known brokerage firm executive claimed that 90% of investors are currently confident of meeting…

A: The following null and alternative hypotheses need to be tested: Ho: p ≥ 0.90Ho:p≥0.90 Ha: p…

Q: Test the claim that the proportion of men who own cats is smaller than 40% at the .005 significance…

A:

Q: Are blonde female college students less likely to have boyfriends than brunette female college…

A: pblonde  = 446/639 = 0.698 pbrunette  = 512/720 = 0.711

Q: 5) Historically, the percentage of U.S. residents who support stricter gun control laws has been…

A:

Q: A well-known brokerage firm executive claimed that 80% of investors are currently confident of…

A: We have given that Sample size n=400, sample proportion p^=0.72 , alternative claim H1:p<0.8…

Q: a.    If a null hypothesis is rejected with a significance level of 0.05, is it also rejected with a…

A: To be reject null hypothesis,  p value must be smaller than alpha.