In the past, 70% of the tourists who visited Dubai went to see Burj Khalifa. The management of Burj Khalifa recently undertook an extensive promotional campaign. They are interested in determining whether the promotional campaign actually increased the proportion of tourists visiting Burj Khalifa. A random sample of 200 tourists is selected and it was found that 150 of them went to see Burj Khalifa. Find the p- value of the test. (Round your answer to three decimal places).

Q: Find the z-score that cuts off 70% in the body on the right.

A:

Q: find the test value used to test the claim that the proportion of jellyfish stings at jones beach is…

A: Given, Sample size = 696 Sample proportion = 0.30   The null and alternative hypothesis is:

Q: A basketball measured the heights of his players and found them to be: 173cm, 177 cm, 185cm, 183cm,…

A:

Q: In 2016 the Better Business Bureau settled 80% of complaints they received in the United States.…

A: The objective of this question is to calculate the expected value and standard deviation of the…

Q: A 2013 Gallup poll asked randomly selected US adults whether they wanted to stay at their current…

A: Of the 562 men surveyed, 242 wanted to stay at their current weight.Of the 477 women surveyed, 172…

Q: Many athletes (and their parents) worry about the risk of concussions when playing sports. A…

A: First let us sort the head circumferences (in inches) for the players on the team; No. Head…

Q: in a survey 7 out of 8 people liked cooking over washing dishes what percent liked cooking more

A: As per question, we need to find how much percentage liked cooking more. So, we need to find both…

Q: speech therapist gave a patient an assessment to test articulation. The patient pronounced 5 test…

A:

Q: A consumer group surveyed 146 airplane travelers after a flight and found that 132 of them would fly…

A:

Q: On a hockey team, there are 14 players. The captain of the team scored on the team, and less than…

A: Given : There are 14 players Captain of the team scored 35 goals last year, which is more than 10…

Q: Helga scored in the 70th percentile rank on an exam. If 300 students took the exam, how many…

A: Given: percentile rank of Helga: 70th           total number of students who took exam: 300 students…

Q: condition. Find the lower cutoff score (number of berries which will go for juice).

A: The z score can be calculated as: z=x-μσ The required z score that is associated with the bottom…

Q: From the sample statistics, find the value of p1 - P2, the point estimate of the difference of…

A: We have given the 99% confidence interval fot  p2-p1 (-0.0012, 0.003)

Q: Find the z-score that cuts off 65% in the body on the left.

A:

Q: Biologists studying horseshoe crabs want to estimate the percent of crabs in a certain area that are…

A: According to the provided data, a biologist wants to estimate the percent of crabs in a certain area…

Q: f) Let z be the value of the test statistic. Give the correct decision rule at a = 0.05 level of…

A: sample size, n = 120 30 learners reported that they smoke Proportion of learners who reported that…

Q: lease do not give solution in image format thanku) The FBI wants to determine the effectiveness of…

A: Answer  Given  sample size [n] =1753   Favorable cases [x] =683

Q: 4% of visitors make donations. on a certain day, the museum has 175 visitors. find the expected…

A: The expected number of donations is obtained below as follows:   The conditions for the normal…

Q: new soft drink is being market tested. It is estimated that 60% of consumers will like the new…

A: Here we want to find standard error.

Q: Exhibit-C. An insurance company selected samples of clients under 18 years of age and over 18 and…

A: It is given that: "Under age of 18" group:n1 sample size=500x1 No. of accidents=180"Over age of 18"…

Q: In a recent study, 46% of people enjoy country music.  If 200 people are surveyed about their…

A: Given : Proportion (prop.) of people enjoy country music p = 46% = 0.46 Sample size of people n =…

Q: Use the information provided here to answer the following questions. H0 : p 60, n 36, Xbar = 58.…

A: option (a) which is the information provided characterizes one smaple, one sided test is correct…

Q: 1. What are the null and alternative hypotheses? Ho: p= 0.5000 Ha: p>0.5000 2. Calculate the null…

A: Given: No. of crashes occur, x=107 Sample size, n=195

Q: A telecommunications company conducted a survey about cell phone companies. Of 1800 randomly and…

A: given  x = 1275 preferred AT&T to Sprint n =Of 1800 randomly and independently selected people…

Q: From the sample statistics, find the value of p1 - p2, the point estimate of the difference of the…

A: From the provided information,

Q: fragrance free laundry soap.

A: To test the percentage of customers who prefer fragrance free laundry soap.   This can be done using…

Q: Find an article of your choice which uses proportions, and copy and paste the address of that…

A: The objective of the question is to understand the concept of sample proportions and how they are…

Q: in the highest 2.5 percent eat?  What is the z-score

A: Given that 2.5% of the highest area present in the data. That is, P(Z>z)=2.5%=0.025…

Q: A man is 80% sure how much he loves 5 females (player, player J) but he wants to make sure he’s 99%…

A: A man is 80% sure how much he loves 5 females (player, player J) but he wants to make sure he’s 99%…

Q: The number of hours per week that the television is turned on is determined for each family in a…

A: Given information- Mean of the data = 35 hours Median = 31.2 hours Sample size = 24 families We have…

Q: Recherchers conducted two surveys about teens are their use of social media. The First survey asked…

A: Here we use the proportion concept.  P = x / n Pooled proportion formula P(cap) = ( x1+ x2) / ( n1+…

Q: company wanted to estimate the proportion of employees who use mass transit to get to work. The…

A:

Q: An electronics company wants to gauge public opinion on its products. They send out a business reply…

A: An electronic company wants to gauge public opinion on its product. The company wants the public…

Q: The Bangor Humane Society tracks cat adoptions closely. They sample 54 people who looked at cats…

A: Sample proportion = x/n Here x = 36 and n = 54

Q: Find P₄₁ , which is the score separating the bottom 41% from the top 59%. P₄₁ =

A: It is given that the area is 0.41.

Q: Forty percent of players scored 8 points or Sixty percent of players scored 8 points or more - less…

A: Given that,The 40th percentile for points scored per player in a game is 8.That is,P40 = 8

Q: A pie chart reflects student performance... 16% As, 24% Bs, 32% Cs, 16% Ds, 12% Fs A. There were…

A: The give percentages of student performance in pie chart is 16% A's, 24% B's, 32% C's, 16% D's, and…

Q: As part of a sixth-grade class project the teacher brings to class a large jar containing 200…

A: Given, Population size = 200 Sample size = 25 Red gumballs = 15 Green gumballs = 10

Q: Find the point estimate of p and 96% CI.

A: Given: X: Number of students responded as Yes = 32 n: Total number of students = 100

Q: Find the point estimate for the population proportion.             A Southern student wants to know…

A: It is given that the sample size (n) is 888 and the number of people spoke 2 or more languages is…