A publisher reports that 53% of their readers own a particular make of car. A marketing executive wants to test the claim that the actual percentage is actually different from the reported percentage. A random sample of 250 found that 44% of readers owned a particular make of car. Is there sufficient evidence at the 0.01 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: Find the raw score which corresponds to z=1.6?

A:

Q: a. The null and alternative hypotheses would be: Ho: Select an answer ✓ Select an answer ✓ H₁:…

A: Sample Mean  45.62   Standard Deviation (S1​)                       2.56 Sample…

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

A: For country C n=1024,p hat =0.45 For country D n =1078 ,p hat = 0.41

Q: In 1980 and again in 2010, a Gallup poll asked a random sample of 1000 US citizens "Are you in favor…

A:

Q: Give the value of the test statistic. (Enter your answer rounded to two decim

A: Excel Procedure: Enter the data of No odor in column A. Enter the data of lavender in column B.…

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: Use the expression in the accompanying discussion of sample size to find the size of each sample if…

A: Find z-critical value:…

Q: Please calculate the SD of a sample of 11 data points using the formula taught in class.  The…

A: Sample size (n)= 11Sample mean The sum of all the scores squared It is required to calculate the…

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: A poll was conducted on a representative sample of 600 adults living in the United States in order…

A: A poll was conducted on a representative sample of 600 adults living in the United States in order…

Q: A hospital director is told that 57%5 of the emergency room visitors are insured. The director wants…

A: Given information- Population proportion, p = 0.57 Sample size, n = 60 Sample proportion is- We…

Q: During one of the Kahana Resort’s “Trivia Nights,” 480 guests took the test on “Island Trivia.”  The…

A: Introduction: Define X as the random variable of interest here, which denotes the score obtained by…

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

A:

Q: #1 = $48,877 a2 = $55,157 81 = $16,000 82 = $12,000 a. Formulate hypotheses so that, if the null…

A: Given Data : For Finance majors x̄1 = 48877.0 s1 = 16000.0 n1 = 130…

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: sample proportion is p= und to three decimal places as needed.)

A: Given Number of sample of teenagers between 13 to 17 year of ages(n)=280

Q: In a survey of 1150 adult males, 805 said they use the Internet. In a survey of 1050 females, 746…

A: There are two dependent variables which are males and females. The independent variable is using of…

Q: A recent study indicated that 43% of the 100 women over age 55 in the study were widows. Round up…

A:

Q: Use the expression in the accompanying discussion of sample size to find the size of each sample if…

A:

Q: Find the critical value. The critical value is zo =. %3D

A: Given α=0.10

Q: Suppose X ∼N (-4,1. Between what xx values does 99.72% of the data lie?

A: Given: X ∼N (-4,1 ) To find: Between what xx values does 99.72% of the data lie?

Q: According to a Mobile Marketing Company's survey of 2000 people, 60% said that they use their mobile…

A: We have to find nom of successes in given sample.

Q: A pediatrician wants to determine the relation that may exist between a child's height and head…

A: Formula : Se =√(SSE/(n-1))

Q: A hospital director is told that 55% of the emergency room visitors are insured. The director wants…

A: Given: n= 320 ,x= 160 p= 0.55 ,significance level(∝)= 0.01 p̂= 160 / 320 =0.5

Q: Suppose a random sample of 5804 physicians in Colorado showed that 3145 provided at least some…

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: 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: The distances golf balls travel under laboratory testing conditions are normally distributed. The…

A:

Q: Ten percent of the world's population is left-handed. A researcher claims that left-handed…

A: Given dataTen percent of the worlds population are left handed.A researcher took a sample of 900…

Q: A hospital director is told that 30% of the treated patients are uninsured. The director wants to…

A: Solution-: Given: x=30,n=120,P0=0.30 We want to find the value of the test statistic

Q: Is the average time to complete an obstacle course different when a patch is placed over the right…

A: The data shows the obstacle course with a patch over one eye and then completed an equally difficult…