The director of research and development is testing a new medicine. She wants to know if there is evidence at the 0.02 level that the medicine relieves pain in more than 346 seconds. For a sample of 58 patients, the mean time in which the medicine relieved pain was 352 seconds. Assume the population standard deviation is 23. Find the P-value of the test statistic.

Q: A pharmaceutical company claims that a drug is effective in treating 90% of people having severe…

A: Given that,The random variable follows binomial distribution,n=6p=90%=0.9,q=1-p, q= 0.1

Q: On the past math summative exam, the bottom 20% of students failed to pass the test. The mean for…

A: The mean for the test is, μ=55 The standard deviation is σ=11 Consider that the bottom 20% of…

Q: a manufacturer claims that the mean lifetime of its fluorescent bulbs is 1050 hours. a homeowner…

A: Given n=40 Standard deviation =80 Xbar=1030 Level of significance=0.05 Mu0=1050

Q: On a final  examination in mathematics , the mean was 72  and standard deviation was 15 . Determine…

A: given information: μ=72σ=15x=65 we want to determine the z score . z=x-μσ  =65-7215  =-0.4667

Q: Assume that among the members of a men's gym, the distribution of body weights has a mean of 188…

A:

Q: What is the corresponding Z- score, mean is 110, standard deviation is 8 and x is 90

A: In question, We'll find the Z - score for mean 110, standard deviation 8 and x = 90. The solution is…

Q: On a standardized test with normal distribution, the mean is 85 and the standard deviation is 3.…

A: If 95% lies in the middle then (100-95)%=5% are on the two tails. So one tail has = 5%2=2.5%=0.025z…

Q: An advertising agency has stated that 20% of all television viewers watch a particular program. How…

A: From the provided information, An advertising agency has stated that 20% of all television viewers…

Q: A successful basketball player has a height of 6 feet 8 ​inches, or 203 cm. Based on statistics from…

A: Consider X is a random variable defined as the height of a successful basketball player.The provided…

Q: For a sample of 18 cars, you find the standard deviation of the price is 6150 (measured in dollars).…

A: Given that, Sample size of cars n=18 Standard deviation of the price s=6150

Q: Doug has 1,000 bottle caps in his collection compared to Melissa's 2000 bottle caps. If the average…

A: Given,mean(μ)=1250standard deviation(σ)=500Doug bottle cap collection(X)=1000Melissa's bottle cap…

Q: A nutritionist claims that the mean tuna consumption by a person is 3.1 pounds per year. A sample…

A: Solution: Let X be the tuna consumption by a person. From the given information, n=90, x-bar=2.9 and…

Q: A marketing specialist wants to estimate the average amount spent by visitors to an online…

A:

Q: An advertising executive wants to estimate the mean amount of time that consumers spend with digital…

A: a) The sample size is 117 and it is obtained below: From the given information, the population…

Q: When Lauren runs the 400 meter dash, her finishing times are normally distributed with a mean of 88…

A:

Q: The number of chocolate chips in an 18-ounce bag of chocolate chip cookies is approximately normally…

A:

Q: An incoming freshman took her college’s placement exams in French and mathematics. In French, she…

A:

Q: The population standard deviation for the height of high school basketball players is three inches.…

A: Solution: 6. From the given information, confidence level is 0.95, σ=3 inches and E=1.

Q: In a normally distributed data set of how long customers stay in your store, the mean is 43.5…

A: Given data Mean μ = 43.5 Standard deviation σ = 3.9 95% of your customers to stay in your store.…

Q: Find the Mean and Standard Deviation for the prompts below: A survey found that 21% of Americans…

A: Binomial Distribution :  A binomial distribution is a specific probability distribution. It is used…

Q: Nationally, the per capita monthly fuel oil bill is $110. A random sample of 36 cities in the…

A: Let μ denotes the population mean per capita monthly fuel oil bill. The national per capita monthly…

Q: The mean score on the SAT in 2017 was 1060, and the standard deviation was 195. Assume the scores…

A: Given,  Mean μ=1060  Standard deviation σ=195Let x be score of a randomly selected person

Q: If research samples 28 college students and wants to compare the sample mean of 8 to the population…

A: From the provided information, Sample size (n) = 28 Sample mean (x̄) = 8 Population mean (µ) = 12…

Q: he History test had a national mean of µ = 52 and a standard deviation of  σ= 9. How much sampling…

A: Given data, µ = 52  σ= 9 n=27 sampling error=?

Q: The cold medicine Dozenal bears a label indicating the presence of 600 mg. of acetaminophen in each…

A: We want to test the hypothesis

Q: The percent fo Coloradans that own a Subaru is 56%. If you were to take a random sample of size 70,…

A: We have given that,  Let X be the random variable from binomial distribution with probability (p) =…

Q: If the standard error,  of a sample data set is 5 and the standard deviation,  of the distribution…

A: For a population with mean µ  and standard deviation σ, the standard error is σx̅ = σ/√n, where x̅…

Q: A recent study found that 69% of all adults over 50 wear sunglasses for driving. In a random sample…

A: Formula : Mean = np Standard Deviation  :

Q: Loretta, who turns 91 this year, has heard that the mean systolic blood pressure among the elderly…

A:

Q: Given a distribution with a mean of 117 and standard deviation of 42, find a value with a z-score of…

A: Consider that X is a random variable and the given distribution follows normal distribution mean 117…

Q: At a college, the mean height of women is 63 inches with the standard deviation of 3 inches. What is…

A: Given,mean(μ)=63standard deviation(σ)=3

Q: The state of California has a mean annual rainfall of 22 inches, whereas the state of New York has a…

A: Given: For California: Mean,μ=22Std deviation,σ=4Sample size, n=30 For New York: Mean,μ=42Std…

Q: Vivino website, suppose the mean price for a bottle of red wine that scores 4.0 or higher on the…

A: Given: Sample mean x¯=30.15 Sample standard deviation (s) =  12 Sample size (n) = 59 Hypothesized…

Q: Assume the average income of workers in jordan equal 400 JD, a sample of 500 workers are taken and…

A: please see the next step for solution

Q: Describe  the scores in a sample  that has a standard  deviation of zero

A: If the standard deviation is zero there will be no dispersion of scores from the Mean. It means that…

Q: The local police force gives all applicants an entrance exam and accepts only those applicants who…

A: The score that corresponds to the top 15% is, The Z-score that corresponds to the area 0.85 is…

Q: A nutritionist claims that the mean tuna consumption by a person is 3.3 pounds per year. A sample of…

A: (a) Let μ denotes the population mean tuna consumption. The claim of the test is that the mean tuna…

Q: The distribution of the number of viewers for the American Idol television show follows a normal…

A:

Q: A student scored 66 on a general science test where the class mean and standard deviation were 82…

A:

Q: A successful basketball player has a height of 6 feet 77​inches, or 201201 cm. Based on statistics…

A: Given information- Height of a player = 201 cm Z-score = 3.743 We know that standard height is given…

Q: In a survey of women in Canada, the mean height was 65 inches with a standard deviation of 3 inches.…

A:

Q: The starting salary for a computer programmer major has a mean of $39,269 and a standard deviation…

A:

Q: A nutritionist claims that the mean tuna consumption by a person is 3.6 pounds per year. A sample…

A: Given that  Claim :  Mean tuna consumption by a person is 3.6 pounds per year Sample size (n) = 90…

Q: The average score on the verbal portion of the college entrance exam is 453, with a standard…

A: From the provided information, Sample size (n) = 137 Sample mean (x̅) = 502 Population standard…

Q: If a normally distributed group of test scores have a mean of 70 and a standard deviation of 12,…

A: It is given that the mean is 70 and the standard deviation is 12.

Q: A researcher in Des Moines, Iowa sampled 56 households and found the mean number of puppies per…

A: # sample size n=56  population mean mu=3.03  standard deviations=1.5  then to find 62nd percentile…

Q: Find the Mean and Standard Deviation for the prompts below: 5.)  A survey found that 86% of…

A: 5. Given: p=0.86n=121-p=0.14 The probability that 10 or more would have never been the victim of a…

Q: The mean salary of all employees in a company is $3,485, and the standard deviation is $1,870. Find…

A:

Q: A travel analyst claims that the mean price of a round trip flight from New York City to Los Angeles…

A: Solution:

Q: In a study of Ridge View's boys' basketball team, the average height is 68 inches and standard…

A: Given that, In a study of Ridge view's boys' basketball team, the average height is 68 inches and…

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.