19. An internet provider claims 80% of user have netflix on their tablets. You doubt this claim, conduct a survey of 74 tablet users, 63 of those surveyed have netflix on their tablets. What can conclude if a = .05? A- What are the null and alternate hypothesis for this problem:

Q: I’m testing the claim that a population exceeds .62, the null hypothesis is H0, what is it?

A: H0 = Null Hypothesis H1 = Alternative Hypothesis

Q: are conducting a study to see if the proportion of voters who prefer Candidate A is significantly…

A: In hypothesis testing, a null hypothesis can be defined as the hypothesis of no difference or…

Q: Your school newspaper reported that the percentage of students majoring in business (p) is at most…

A:

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: (d) Carry out an appropriate hypothesis test at a = 0.05 to see whether the proportion of houscholds…

A: Given: Sample data: Proportion (p) =0.2292 sample size(n)=100sample proportion(p^)=0.32α =0.05

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: The following is a table showing the actual results from a poll when politicians where asked if they…

A: (a) State the hypotheses. Null hypothesis: Alternative hypothesis:

Q: Suppose that the proportion of investors who are risk-averse (that is, try to avoid risk in their…

A:

Q: In a psychology experiment 130 students were classified by major (sciences or humanities) and if…

A: we do this by χ2testH0: choice of major and right/left handedness are independent H1: choice of…

Q: A decade-old study found that the proportion, p, of high school seniors who believed that "getting…

A:

Q: A school reports that 71% of its graduates get jobs within one year. You take a random sample of 71…

A: 1. Denote p as the true population proportion of graduates, who get job within one year.

Q: A hospital director is told that 32%of the emergency room visitors are uninsured. The director wants…

A:

Q: Define the null hypothesis and the alternative hypothesis.

A: There are two qualitative variable, one is satisfaction and other is age.

Q: To determine if people prefer this year's school start time over last year's school start time, WCS…

A: From the above data

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

A:

Q: Suppose that the proportion of citizens in a local community who use bus transportation was reported…

A: The random variable X follows normal distribution. We have to test whether the proportion of bus…

Q: Which of the following is not among the steps in Hypothesis Testing?

A: Here We will list the Steps for Hypothesis Test

Q: A December 2017 Gallup Poll reported that 43% of Americans use the internet for an hour or more each…

A: Given that  Sample size n =60 Favorable cases x =36 Sample proportion p^=x/n  =36/60 =0.6

Q: 4. Suppose a political candidate claims the percentage of uninsured drivers is 30 percent, but you…

A: Rule of hypothesis : Null Hypothesis contain 'less than or equal to ( <= )' , 'greater than or…

Q: 7. According to the February 2008 Federal Trade Commission report on consumer fraud and identity…

A: Solution: Given information: n= 1435 Sample size of complaints  x= 322 complaints of identity theft…

Q: According to a University Center for Logistics Management, 3% of all merchandise sold in the United…

A:

Q: = 40.1     Ha: μ ≠ 40.1.   b. H0: μ ≥ 40.1     Ha: μ  40.1     Ha: μ ≤ 40.1.

A: The population average manufacturing work week in metropolitan Chattanooga is represented by μ

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: Suppose a 95% CI for the proportion of adults that regularly attend a tae kwon do class at least…

A: From the provided information, Confidence level = 95% The confidence interval = (0.2534, 0.3894)

Q: 8. Refer to the Bayer Aspirin problem: How would the alternate hypothesis be written symbolically if…

A:

Q: 20 - When comparing two population proportions, what is the null hypothesis if the alternate…

A: Null hypothesis and alternative hypothesis are always opposite to each other.  So if alternative…

Q: An internet provider is trying to gain advertising deals and claims that the mean time the…

A:

Q: What is the test statistics to test the Null hypothesis H0 : p = 0.37 against the alternative, Ha :…

A: It is given that  Population proportion, p = 0.37 Favourable cases, X = 82 Sample size, n = 103…

Q: A student pursuing a degree in English as a second language believes the proportion female factory…

A:

Q: According to a University Center for Logistics Management, 10% of all merchandise sold in the United…

A: From the provided information, Sample size (n) = 89 Out of which 8 of the items were returned. The…

Q: 55% of students entering four-year colleges receive a degree within six years. Is this percent…

A: Given,sample size (n)=256and X=161sample proportion(p^)=Xn=161256=0.6289α=0.10

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: We would like to test the claim that more than 15% of households use email in the U.S. In a survey,…

A: GivenTh claim is that more than 15% of households use email in the U.S

Q: 2. We ask whether people will score higher or lower on a questionnaire of their well-being when they…

A: From the given information we conduct paired t test

Q: 22. Because one of the brands of MP3 players (Brand B) is known to be the most popular among…

A: 22. Alternate Hypothesis:  It is the hypothesis which is claimed by the researcher   Null…

Q: A student pursuing a degree in English as a second language believes the proportion female factory…

A: From the given information, let X1 be the female factory workers that could not speak English. X1 =…

Q: 57% of students entering four-year colleges receive a degree within six years. Is this percent…

A:

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: About 778000 male and 886000 female high school students took the SAT in 2012. We want to decide…

A: Solution :  Let, N : Population size        n : Sample size         m : Men        f : Women Nm =…

Q: s the proportion of wildfires caused by humans in the south higher than the proportion of wildfires…

A:

Q: 2. What is your null hypothesis? (in words)

A: Given that  Here  Number of participant =7

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: 3. A sample of n=25 individuals is selected from a population with μ=80, and a treatment is…

A:

Q: Which of the following accurately describes a hypothesis test?

A: We know that the hypothesis testing is a part of drawing inference about population.

Q: A study found that 13% of Americans have seen or sensed the presence of an angel. A contingent…

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: what would be the alternate hypothesis and type of test

A: Claim : the average time from 0 to 60 miles per hour is not equal to 8.7 seconds

Q: The proportion of business improvement loan applications turned down in this country is equal to 15%…

A: According to the given information in this question The null hypothesis is   H0 : p = 0.15

Q: A December 2017 Gallup Poll reported that 43% of Americans use the internet for an hour or more each…

A: Given : Let X : No. of students use an internet for an hour or more each day Sample size (n) =60 X =…

Q: Which is the alternative hypothesis?

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

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.