A publisher reports that 62% of their readers own a laptop. A marketing executive wants to test the claim that the actual percentage is actually more than the reported percentage. A random sample of 130 found that 70% of readers owned a laptop. Is there sufficient evidence at the 0.10 level to support the executive's claim? Round p-value to four decimal places. p-value =  Conclusion (write R for "reject H0", and F for "fail to reject H0"):

Q: There are 5000 observations in a data set. 10% of the data are “1”s, while the rest are “0”s. If we…

A: The data set consist of 5000 observations. The observations are 0's and 1's. An amount of data…

Q: 5.42 Find the probability of rejecting Ho (that = 650) for Prob. 5.39 if = 0.043 and (b) p=0.22, (c)…

A:

Q: A random sample by the National Institutes of Health included 2253 men to determine the proportion…

A: Given x=986 n=2253

Q: A dietician read in a survey that 85.36% of adults in the U.S. do not eat breakfast at least 3 days…

A:

Q: An attorney claims that more than 25% of all lawyers advertise. A sample of 200 lawyers in a certain…

A: Claim:p>0.25   n=200       x=63       p∧=xn=63200=0.315   α=0.05 ∴H0:  p=0.25     H1:   p>0.25…

Q: given as + Choose th

A: The margin of error is the amount of random sampling error in the results of a survey. The larger…

Q: A publisher reports that 65% of their readers own a laptop. A marketing executive wants to test the…

A: Here the given information is A publisher reports that 65% of their readers own a laptop. A…

Q: Claim: More than 53% adults would erase all of their personal information online if they could. A…

A:

Q: The claim is that the proportion of peas with yellow pods is equal to 0.25 (or 25%). The sample…

A: Given information- Population proportion, p = 0.25 Sample size, n = 460 No. of success, x = 103…

Q: A poll stated 36% of people drink coffee to combat midday drowsiness. A recent survey was taken and…

A: Givenn=48x=19p^=xn=1948=0.3958α=0.02

Q: A study was conducted to determine the proportion of people who dream in black and white instead of…

A: α=0.01 Sample size, n1=323 No. of people dream in black and white, x1=73 Sample size, n2=315 No. of…

Q: Part 1 of 4 (a) What Is the probablity that six or more of them used their phones for guldance on…

A: Given : Probability of success,p = 0.57 Number of trials,n = 14

Q: Q: Bring the following hypothesis in a formula form: Women are not more motivated than man There is…

A: Hypothesis is an assumption that is being tested.

Q: According to a survey conducted by the Association for Dressing and Sauces, 85% of American adults…

A: Given, P0 = 0.85 n= 200 x = 171

Q: A teacher claims that over 11% of maths students are married. In the survey at the beginning of…

A: Answer: From the given data, Population proportion (P) = 11% = 0.11 Sample size (n) = 50 Sample…

Q: A random sample of 5000 people was conducted to determine whether the proportion of Indiana…

A: sample size(n)=5000x=2773sample proportion()=population proportion(p)=0.57

Q: Compute the test statistic. Round to two decimal places.

A: Sample size, n=2027 No. of adults who drank diet soda, x=485

Q: What is the p-value only?

A: It is given that  In the original solution  The value of the test statistic is z = 3.92. The given…

Q: torists do not have motor vehicle insurance. A random survey amongst 150 motorists found that 54 do…

A: A random survey amongst 150 motorists; n=150

Q: The table below summarizes the  results of a survey in which randomly selected people were asked how…

A: It is needed to test, whether the feelings on medical marijuana and gender are independent or not.

Q: Conduct a hypothesis testing for the results of the correlation between the writing skills and…

A: The concept of testing hypothesis is one of the method of statistical inference where we take the…

Q: Use the figure to the right, which shows the percentages of adults from several countries who favor…

A:

Q: Use the test statistics that you found to fnd the p-value (Round answer to four decimal places).

A: Given:population proportion p = 0.054sample size n = 400number of children with abnormalities in the…

Q: A publisher reports that 22% of their readers own a laptop. A marketing executive wants to test the…

A: Denote p as the true proportion of readers, who own a laptop. It is reported that 22% of their…

Q: A marketing expert for a pasta-making company believes that 48% of pasta lovers prefer lasagna. If 6…

A: Given that Sample size n =25 Favorable cases x =6 Sample proportion p^=x/n =6/25 =0.24

Q: It has been claimed that at UCLA 43% of all students live on campus. Researcher Ebony Robinson…

A: Given X=112 n=250

Q: While her husband spent 2½ hours picking out new speakers, a statistician decided to determine…

A:

Q: A veterinarian believes the proportion of cats that are expected to live more. than 15 years to be…

A: Suppose p is the true population proportion of cats who are expected to live more than 15 years.It…

Q: An analysis was conducted to determine whether the average height of the 25 girls in the same class…

A: Here Avg height of 25 girls in the Same class is difference from population mean is checked Here…

Q: A sample of 120 low-income individuals and a sample of 230 high-income individuals were surveyed…

A: Let:Population 1 = low-income individualsPopulation 2 = high-income individuals Formula for test…

Q: A publisher reports that 24% of their readers own a particular make of car. A marketing executive…

A: z-test for one-proportion A one-proportion z-test is a statistical method for hypothesis testing…

Q: Please answer number 15.

A: The hypotheses are given below:Null hypothesis:H0 : p = 0.50.Alternative hypothesis:Ha : p >…

Q: Please answer number 13.

A: It is given that 43% had no children, 18% are had one child, 18% are have two children, 21% have…

Q: A study done in 1997 showed that 4.7% of mothers smoked cigarettes during their pregnancy. An…

A:

Q: In the past, 70% of the tourists who visited Dubai went to see Burj Khalifa. The management of Burj…

A: From the provided information, In past, 70% of the tourists who visited Dubai went to see Burj…

Q: Which is the best estimate for the number who bought fewer than 20 items during their trip? Rel f…

A: The histogram shows the number of items that customers bought during a trip to the grocery store one…

Q: Examine the image below and then answer all parts of the question under it. Enter your answers as…

A: a) There are 4 yellow objects in 10 objects.So, P(yellow)=410=0.4b) There are 3 hearts in the 10…

Q: Claim: More than 53% adults would erase all of their personal information online if they could. A…

A:

Q: A magazine provided results from a poll of 1500 adults who were asked to identify their favorite…

A:

Q: This means the test statistic will equal approximately what value

A: It is given that Sample size n = 750 Number of users under the age of 18, X = 51

Q: A marketing manager fora cell phone company claims that the percentage of children aged 8-12 who…

A: Given that,  P= 61% = 0.61 sample size, n= 826 We know that p=X/n p=545/826 = 0.66 Then…

Q: Investigators are trying to determine if the contamination of a town well led to significant…

A: Given Information: Before shut down of contaminated well: There were x1=16 birth defects among…

Q: The following table summarizes data collected in a study to evaluate a new screening test for lung…

A: A total of 200 men were involved in the study. The results are tabulated below.       lung…

Q: A dietician read in a survey that 70.5% of adults in the U.S. do not eat breakfast at least 3 days a…

A: It is need to be tested whether the population proportion of adults in U.S who do not eat breakfast…

Q: A publisher reports that 80% of their readers own a laptop. A marketing executive wants to test the…

A: Statistical hypothesis testing is an important method in inferential statistics. It is used to test…

Q: A sample of 900 computer chips revealed that 68% of the chips fell in the first 1000 hours of their…

A: Solution is given below

Q: A Verizon researcher compared the number of text messages sent by a sample of teenage boys to the…

A: a) In this case, the Verizon researcher compared the number of text messages sent by a sample of…