A poll of 2,017 randomly selected adults showed that 92% of them own cell phones. The technology display below results from a test of the claim that 93% of adults own cell phones. Use the normal distribution as an approximation to the binomial distribution, and assume a 0.01 significance level to complete the equation.

Q: Two out of 8 students at a local college say that they skip dinner in the evening. Find the mean,…

A: Given that  Success of probability p =2/8=0.25 Number of trials n=20 X~binomial (n,p)

Q: In a normal distribution, what does the variance measure?

A: The normal distribution is a symmetric distribution that has a bell-shaped curve.

Q: els that the median age at which women marry in Palawan, is less than the median age of 26.9…

A: Given: Age 31 27 30 25 21 27 32 23 30 24 24 28 25 23 22 24 24…

Q: When the IV and DV are both numeric, which statistical test is most appropriate to use for…

A: Regression analysis is used to estimate the relationship between variables. There will be one…

Q: An electronics company manufactures resistors that have a mean resistance of 105 ohms and a variance…

A:

Q: Last year, 10.4% of businesses have increased hiring. For a random sample of 371 businesses, find…

A: From the provided information,p = 0.104n = 371

Q: Nationally, about 11% of the total U.S. wheat crop is destroyed each year by hail. An insurance…

A: a)   Suppose μ is the population mean percentage of wheat crop lost to hail.

Q: According to previous studies, the mean distance each visitor in Greenspan National Park hikes…

A:

Q: An athletics coordinator collected the 100-meter sprint times for 15-year old students at Ryde…

A: Introduction: Denote X as the time taken to complete the 100-meter sprint by a randomly chosen…

Q: An automobile manufacturer claims that its van has a 28.8 miles/gallon (MPG) rating. An independent…

A: Given information Sample mean x̅ = 28.9 mpg Population mean µ = 28.8 mpg Sample size n = 300…

Q: Nationally, about 11% of the total U.S. wheat crop is destroyed each year by hail. An insurance…

A: Hey, since there are multiple subparts posted, we will answer first three subparts. If you want any…

Q: According to previous studies, the mean distance each visitor in Greenspan National Park hikes…

A: GivenMean(x)=27.6standard deviation(σ)=9.9sample size(n)=46significance level(α)=0.10

Q: In a random sample of 1000 B.Com students, 125 said that they wanted to become Statisticians. Assume…

A:

Q: Develop a research question from the data collected that requires a chi square distribution test.…

A: Given information: The data represents the values of the required variables.

Q: 3. Suppose that in a casino, a certain slot machine pays out an average of Php 15, with a standard…

A: Given Information: Average payout = Php 15 Standard deviation of payout = PhP 5000 Cost = Php 20

Q: Assume that you have a binomial experiment with p = 0.4 and a sample size of 120. What is the…

A: Given that, From binomial experiment, Probability, p = 0.4 Sample size, n = 120

Q: What is the test statistic for the difference between sample​ means?

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Q: Go through the ten steps of analysis of variance hypothesis testing to see if you conclude that…

A: The data given in the question is: Y MA E 193.6 125.4 59 137.5 126.5 87.2 122 115.9 84.4…

Q: A recent survey found that 61% of all adults over the age of fifty wear glasses for driving. In a…

A: Given that Given distribution is binomial. n=Random sample of 80 adult n=80 p=61% of adults over the…

Q: A sample of people attending a professional football game averages 13.7 years of formal education.…

A: Given information: A sample of people attending a professional football game averagesX¯=13.7 The…

Q: Compare the variance and standard deviation of the figures provided

A: From the given information,

Q: A distribution has a mean of 75 and a median of 70. This distribution is probably positively skewed

A:

Q: The average person uses 130 gallons of water daily. If the standard deviation is 35 gallons , find…

A: Given that, Mean = 130 Standard deviation = 35 Sample size = 25

Q: 2. Two stores at SM Downtown are selling batteries for cell phones. Store A claims an avera battery…

A: Given : Store A claims an average battery life of 12 hours. Store B claims an average battery life…

Q: A charitable organization solicits donations by telephone. Employees are paid $60 plus 20% of the…

A: Suppose X be the amount of money generated in a week. E(X)=$700…

Q: According to previous studies, the mean distance each visitor in Greenspan National Park hikes…

A:

Q: a. Find the mean number of dogs in this sample who weigh 65 lb or more. Mean = b. Find the standard…

A: Here given, The Australian sheep dog is a breed renowned for its intelligence and work ethic. It is…

Q: Assume that police estimate that 13% of drivers do not wear their seatbelts. They set up a safety…

A: From the given information,Probability for do not wearing seat belt is 13%And number of cars are 40

Q: Questions 4 to 5: Recent studies have shown that 20% of Americans are fit the medical definition of…

A: Let X denote the number of students that are obese and it follows binomial distribution with…

Q: An adventure company runs two obstacle courses, Fundash and Coolsprint. The designer of the courses…

A: Note- As per our policy we can answer only the first 3 sub-parts of a question. If you want…

Q: The hotel room rate in Miami, Florida is normally distributed with a mean of $286 per night. Assume…

A:

Q: The likelihood that a bulb is defective is 7%, on a particular line. Eight light bulbs are randomly…

A: Answer: From the given data, The probability of defective light bulbs (p) = 7% = 0.07 Sample size(n)…

Q: A large oil company is studying the number of gallons of gasoline purchased per customer at…

A: GivenMean = 11.2standard deviation(σ)=3.0Median = 12.25

Q: The likelihood that a bulb is defective is 9%, on a particular line. Ten light bulbs are randomly…

A: Answer: From the given data, Sample size(n) = 10 p = 9% = 0.09

Q: An adventure company runs two obstacle courses, Fundash and Coolsprint. The designer of the courses…

A: From the given information we have Sample mean (x̅1) = 76.7Sample mean (x̅2) = 77.5Sample size (n1)…

Q: A survey of 64 randomly selected homeowners find that they spend a mean of $62 per month on home…

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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.