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: 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: Using a random sample of 3800 TV households, a media research company found that 50.3% watched the…

A:

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: se technology to calculate the P-value P-value = (Round to three decimal places as needed.)

A: Given that  Sample size n1=1120 , n2=1048 Sample proportion p1^=0.47 , p2^=0.46

Q: A baseball player has a batting average of 0.313. what is the players expected number of hits in her…

A: Solution: Given data p = 0.313 n =19 To find : Expected number of hits in her next 19 times at bat?…

Q: F. For the following data set, complete the table and determine the mean, median, mode and standard…

A:

Q: Right 48 45 50 41 42 44 41 47 Left 48 42 47 40 42 41 40 49 Assume a Normal distribution. What can be…

A: See below

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: 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: 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: figure to the nght, hich shows the percentages of adults from several countries who favor building…

A: The survey included the random sample 1125 adults from country A, 1003 adults from country B, 1019…

Q: What is the probability a woman has breast cancer given that she just had a positive test?

A: Given,  1% women have breast cancer 85% chance of having breast cancer and test positive(true…

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: Let p, represent the population proportion for Country C and p2 represent the population proportion…

A: Given that Sample sizes  for country C and country D n1=1024 , n2= 1078 Level of significance =alpha…

Q: dentify the claim and state Ho and H. The claim is "the proportion of adults in Country C who favor…

A: Given that  Sample sizes for Country C and D n1=1024 , n2= 1078 Level of significance =alpha = 0.09

Q: The instructor of a discrete mathematics class gave two tests. Exactly one-third of the students…

A:

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: The last student surveyed was active for 25 minutes. What percent of students were more active than…

A: It is given that Min = 4, Median = 25 and maximum = 86

Q: At the Fredericton High School it is estimated that at most 25% of the students ride bikes to…

A: Let, p = proportion of students who ride bikes to school

Q: A popular blog reports that 45% of college students log in to Instagram on a daily basis. The Dean…

A: Given  p=45%, n=203, X=106 , level of significance ɑ=0.06 Note: According to Bartleby guidelines…

Q: The manager of a department store wants to estimate the average amount of money a customer will…

A:

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 pharmacologist measured the concentration of dopamine in the brains of several rats.The mean…

A: Mean = 1269 Standard deviation = 145

Q: A researcher records the gender of each child born in the county hospital during the month of June.…

A:

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: 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: The data show the chest size and weight of several bears. Find the regression equation, letting…

A: For the given data Find the regression equation The best predicted weight for a bear with a chest…

Q: Dr. Stoney has administered a test to his students. He calculated a x̄= 86 and ?? = 12. a. What is…

A: It is given that the mean is 86 and the standard deviation is 12.

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

A: From the provided information, Sample size (n) = 8 Level of significance (α) = 0.01

Q: O E Ho: P1 P2 D D. Ho: P1 2 P2 H: P <P2 H, P, SP2 H P, 2P2 ind the standardized test statistic. z=…

A: Given that  Sample sizes n1=1120 , n2=1048 Sample proportion p1^ =0.47 , p2^=0.46

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

A: Given table : Right 48 44 47 40 46 41 46 48 Left 45 42 45 36 45 35 44 45

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…

Q: Define If the actual Y score was 31, but the predicted score was 28, then the error of prediction is…

A: The formula for the calculation of the prediction error is given below: