Suppose the mean cost of a 30-day supply of a generic drug is $46.58, with standard deviation $4.84 across the country. Consider a sample of 125 prices of 30-day supplies of this drug. a. What is the sampling distribution of the mean of 125 prices? b. Find the probability that the mean of a sample of 125 prices of 30-day supplies of this drug will be between $45 and $50. c. What is the price of a mean of a sample of 125 prices of 30-day supplies of this drug that corresponds to the 90th percentile.

Q: The mean selling price of senior condominiums in Green Valley over a year was $215,000. The…

A: Note: Thank you for the question. Since multiple subparts are posted, according to our policy, we…

Q: B.) Select the best answers regarding the figures below. 1.) In the sample distributions in Figure…

A:

Q: If the mean of a Binomial distribution is 5, which is the most likely value for its standard…

A: Answer :- Mean of binomial Distribution  = np = 5 Standard Deviation of binomial Distribution =

Q: The operation manager at a tire manufacturing company believes the mean mileage of a tire is

A:

Q: Calculate the mean, standard deviation, and variance for the following five scores: 9, 4, 7, 1, 4.

A: Considering the scores as population. The population mean is, μ=∑XN=9+4+7+1+45=255=5 Thus, the…

Q: Calculate the mean, standard deviation, and variance for the following five scores: 9,4,7,1,4.

A:

Q: Calculate the sample mean and the sample standard deviation to the nearest hundreths.

A: Given: X 0.5 1.75 2 2.25 2.25 2.5 2.75 3.25 3.75 3.75 4.25 4.25 4.25…

Q: The bank of America's VP feels that each saving account customer has, on average, 3 credit cards.…

A: The bank of America's VP feels that each saving account customer has, on average, 3 credit cards.…

Q: a. How many standard deviations away from the mean is a beetle with mandible length of .44 mm? b.…

A: A z-score is known as the standard score that determines how much the data point deviates from the…

Q: Based on a recent report, the cost of healthcare is $8,086 per person in the United States. Suppose…

A: Given : Population Mean,μ = 8086.0 Population Standard Deviation,σ = 2500.0 sample…

Q: In triathlons, it is common for racers to be placed into age and gender groups. Friends Leo and Mary…

A: d) The Z-score of a random variable X is defined as follows: Z = (X – µ)/σ. Here, µ and σ are the…

Q: The quality control manager at a computer manufacturing company believes that the mean life of a…

A: Given that, μ=120,σ=10 and n=90 The probability that the mean of a sample of 90 computers would…

Q: Given a distribution with a mean of 90 and a standard deviation of 10, what is the probability of…

A: Given Information: μ=90 σ=10 x1=85 x2=110

Q: hoose the letter of the correct answer. 20. Which of the following data show most likely the…

A: Hi! Thank you for the question, As per the honor code, we are allowed to answer one question at a…

Q: Is it worth pursuing a doctoral degree in education if you already have an undergraduate degree? One…

A: The confidence interval is calculated using the combined value of sample statistic and the margin of…

Q: The Ohio Bureau of Employment gathered the following sample information on the number of hours…

A:

Q: A report announced that the median sales price of new houses sold one year was $231,000, and the…

A: b) Consider a random variable X, that defines the price of the houses.

Q: A report announced that the median sales price of new houses sold one year was $231,000, and the…

A: Given information: The median sales price of new houses = $231000 The mean sales price of new…

Q: Bank of America’s Consumer Spending Survey collected data on annual credit cardcharges in seven…

A:

Q: At a customer service call center for a large company, the number of calls received per hour is…

A:

Q: A hypothetical distribution for a population of test scores has a mean of 60.4, a median of 62.8,…

A: According to the given information in this question We need to find standard deviation of sampling…

Q: 3. The number of cars that passes through Sta. Mesa Highway every weekday resembles a normal…

A: Given that mean =8702 ,s.d =678 p( 7000 < x < 8000) =?

Q: Compute for the sample mean, sample variance and sample standard deviation. The score of the 5…

A: Given: The scores are provided as:                                                    35, 15, 31,…

Q: In a small company of 10 people the salaries are as follows: 5 people earn $25,000, 3 earn $27,000,…

A: Questions   find mean (x→) and standard deviation (σ).   Data Given - 5 people earn $25,000   3…

Q: According to the IRS, the average refund in the 2011 tax year was $3,109. Assuming that the standard…

A: Given information- Sample size (n) = 50 Population Mean µ = $3,109 Standard deviation (σ) = $874

Q: Under what circumstance will the mean, the median, and the mode all have the same value? a. in a…

A: It is given that,  The mean, the median, and the mode all have the same values.

Q: Use a formula to find the standard deviation of the sample 1, 4, 5, 6.

A: We have given that,  The data set of the sample is,  1, 4, 5, 6 Then,  We will find the standard…

Q: The CPA Practice Advisor reports that the mean preparation fee for 2017 federal income tax returns…

A: Since you have posted a question with multiple sub-parts, we will solve first three subparts for…

Q: Assume the sample standard deviation is s=10, what do you conclude?

A: here given, sample mean = 87 n = 25 sample standard deviation  = 10

Q: A group of science students plans to take an SRS of 25 days in the year to see what proportion of…

A: Given that the students plans to take a SRS (simple random sample) of 25 days in the year where 41%…

Q: For a perfectly symmetrical distribution with a median of 30, what is the value of the mean?

A: It is given that the distribution is perfectly symmetric and the median is 30.

Q: Find the Mean and Standard Deviation for the prompts below: 3.) State Farm Insurance Company…

A:

Q: Bank of America's Consumer Spending Survey collected data on annual credit card charges in seven…

A:

Q: If it is known that the mean time between eruptions at Old Faithful is 96 minutes with a standard…

A: Given that standard deviation of 12 minutes

Q: If the grades on a statistics test are normally distributed with a mean of 80 and a standard…

A: The probability is equal to the area under the curve of normal distribution. So the probability that…

Q: If three coins are tossed, what are the mean, variance, and standard deviation of the number of…

A: Let X denote the number of heads in tossing three coins. Let p denote the probability of getting the…

Q: (25) The distribution of average speeds of the top 53 drivers in NASCAR is roughly symmetric,…

A: (a) Draw the normal curve with the values from Z=–3 to Z=3

Q: Calculate the mean, variance and standard deviation of the following SAMPLE of  observations: 5.1,…

A:

Q: Given a distribution with a mean of 80 and a standard deviation of 10, what is the probability of a…

A: Given that  Mean=80 , Standard deviation=10 Find  P(X<=65)

Q: The following salaries (in pesos) were obtained from a sample of 12 executive secretaries: 7,500…

A:

Q: the CPA Practice Advisor reports that the mean preparation fee for 2017 federal income tax returns…

A: Since we only answer up to 3 sub-parts, we’ll answer the first 3. Please resubmit the question and…

Q: The emounts of money requested on home loan applications at Down River Federal Savings follow the…

A: It is given that mean is 79,000 and standard deviation is 16,000.

Q: Bank of America’s Consumer Spending Survey collected data on annual credit card charges in seven…

A: (1) State the hypotheses. That is, there is no evidence that the difference between the population…

Q: Find the sample standard deviation for the following scores: x = 2,45,2,6,3,2,9,10,11,34,64

A: The random variable is x. The sample size is 11. It is given that, the sample size of 11…

Q: B.) Select the bestanswers regarding the figures below. 1.) In the sample distributions in Figure 1,…

A:

Q: Suppose that, on average, electricians earn approximately µ = $54,000 per year in the United States.…

A: Given information- Population mean, µ = $54,000 Population standard deviation, σ = $12,000 Sample…

Q: For the following population, answer the following: Remember you can copy and "paste special" the…

A: Given population size is 12.

Q: A fitness instructor at a large gym would like to know if the individuals that take fitness classes…

A: Morning steps mean should be greater than Evening

Q: Bank of America’s Consumer Spending Survey collected data on annual credit card charges in seven…

A: Given values are, Sample mean difference d= 850 sample standard deviation Sd= 1123 number of sample…

Q: c. What is the probability that exactly ten of the 45 luxury cars sold are silver? d. What is the…

A: It is given that n=45 and p=0.191.