2. The average number of prescriptions filled at a pharmacy per person in the United States in 2019 was 11.6. An Illinois health official wants to test whether or not the mean number of prescriptions per capita in Illinois is different than 11.6. They randomly sample 104 Illinois residents and compute a sample mean of 10.9 prescriptions per person. Assume that the population standard deviation is known to be σ = 3.2 prescriptions per person. The official will conduct the test at a 5% significance level. e. What does the P-value represent? f. Based on the 5% significance level, what decision should the official make?

Q: Humerus bones from the same species of animal have approximately the same length-to-width ratios. It…

A: Solution: Given information: n= 100 Sample size  x= 5.6 Sample mean s= 0.25 Sample standard…

Q: Consider a sample with a mean of 500 and a standard deviation of 100. What are the z-scores for the…

A: The mean is 500 and the standard deviation is 100.

Q: Suppose a small paint manufacturing company has a daily production that is normally distributed with…

A: Solution: It is given that a small paint manufacturing company has a daily production that is…

Q: uppose that the resting h stributed with mean 80 a /hat heart rate would a m

A: Let X be a random variable with mean 80 and s.d. 15 that follows a normal distribution. So,…

Q: 2. The average time spent sleeping (in hours) for a group of medical residents at a hospital can be…

A: Given that  X~N(μ= 6.1 , σ= 1) μ= 6.1 , σ= 1 Formula for Z-score Z=(X-μ)/σ

Q: Suppose that the quarterly sales levels among health care information systems companies are…

A: Given data,Mean μ=11sd      σ=1.2P(X<x)=20%x=?

Q: Walleyes found in lake Windermere have a mean length of 18.4 inches with a standard deviation of 4.2…

A:

Q: According to a research paper, the carbon monoxide exposure of someone riding a motorbike for 5 km…

A: From the provided information, Mean (µ) = 18.4 ppm Population standard deviation (σ) = 5.3 ppm X~N…

Q: A data set with an unknown distribution has mean ?=360 and standard deviation ?=20.  State Chebyshev…

A: Given , μ = 360 , σ = 20

Q: According to a recent survey, the population distribution of number of years of  education for…

A: What is the standard error of mean?

Q: Women's heart beats per minute  are normally distributed with a mean of 72bpm and a std. dev. of…

A: We have to find the percent of women who would have heartbeats between 48bpm and 96bpm.

Q: Suppose that striped dolphin lengths are normally distributed with a population standard deviation…

A: The formula for the minimum sample size is as follows: Here, zα/2 is the critical value at 95%…

Q: Suppose that water usages in American showers are normally distributed, with an average shower using…

A: The provided information are: Population meanμ=17.9Population standard deviationσ=2.5 Consider, X be…

Q: Suppose that the quarterly sales levels among health care information systems companies are…

A: Given :  μ = 10 σ = 1.1

Q: 3. The amount of coffee dispensed by a vending machine is assumed to be approximatelynormally…

A: given: Sample mean=5.8 standard deviation=0.8

Q: If gasoline in a certain part of the country has a mean price of $1.62 per gallon and a standard…

A: From the given information, Mean = $1.62 gallon Standard deviation =8 cents =$0.08 gallon (since 100…

Q: A survey found that​ women's heights are normally distributed with a mean62.2in. and standard…

A: It was stated that a survey found that​ women's heights are normally distributed with a mean62.2in.…

Q: Suppose the average golfer drives the ball around 225.55 yards with a standard deviation of 8.82.…

A: Assume that the random variable x denotes the distance of balls drove by the golfer.

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A: X follows a Normal distribution with mean = 1497 and S.D = 293 Then z=(x-mean)/SD = (x-1497)/293…

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A: Given data,Mean μ=9 million dollarssd     σ=1.1 million dollarsP(X<x)=15%x=?

Q: Suppose the average golfer drives the ball around 259.1 yards with a standard deviation of 9.73.…

A: Solution

Q: Suppose the birth weights of babies in a particular country are normally distributed with a mean of…

A: Answer:

Q: Suppose that in the past years the average price per square foot for warehouses in Subic has been…

A: Given: μ=32.28σ=1.29x¯=31.67n=19α=0.05

Q: The middle 55% of jobs should be within what range of times?

A: here given, mean = 50 minute standard deviation  = 6 minute

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A: mean=8 standard deviation=1.1

Q: Suppose the mean height of women age 20 years or older in a certain country is 62.7 inches. One…

A: We have given that The null and alternative hypothesis are H0 : µ = 62.7Ha : µ ≠ 62.7 The test…

Q: Suppose the scores of students on an exam are normally distributed with a mean of 454 and a standard…

A:

Q: Suppose that the quarterly sales levels among health care information systems companies are…

A:

Q: Determine the sales level (in millions of dollars) that is the cutoff between quarters that are…

A: Suppose that the quarterly sales levels among health care information systems companies are…

Q: Suppose that another sample of resting heart rates for five Math students was obtained: 72, 68, 66,…

A: From the given data we want to know the data value .

Q: Sketch the distribution of heights. What percentage of students are over 73.38 inches tall? What…

A: “Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: The number of potholes in any given 1 mile stretch of freeway pavement in pennsylvania has a…

A: The empirical rule  for a normal distribution: 68% of the data are within ± 1 standard deviation…

Q: fitness center is interested in finding a 95% CI for the mean number of days per week that Americans…

A: Given: Xˉ=3.2 s=2.6 n=248  Confidence level = 95% As the population standard deviation is not known,…

Q: Assume that the weights of quarters are normally disturbanced with a mean of 5.67g and a standard…

A: Let, X= weights of quarters Given that X follows a normal distribution with mean= 5.67 and standard…

Q: Suppose the mean height of women age 20 years or older in a certain country is 62.7 inches. One…

A: For the given data Set up hypotheses

Q: Women's height are normally distributed with a mean of 64.7 inches and a standard deviation of 3.1.…

A: Given that.   X~N( μ , ?)   μ=64.7     , ?=3.1   Z-score =( x - μ )/?

Q: Suppose the mean height of women age 20 years or older in a certain country is 62.7 inches. One…

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A: Given information- Population mean, µ = 42,500 miles Population standard deviation, σ = 3200 miles…

Q: If a sample of 144 male weights has a mean of 266 pounds and standard deviation of 32 pounds. The CV…

A: Given data Mean (x̅ ) = 266Standard deviation (s) = 32Coefficient of variation(CV) for sample is…

Q: Suppose that the quarterly sales levels among health care information systems companies are…

A: Given information- Population mean µ = 8 million Standard deviation σ = 1.1 million Z = -1.2816…

Q: Suppose that the quarterly sales levels among health care information systems companies are…

A: The objective of this question is to find the sales level that separates the bottom 15% of all…

Q: Suppose the scores of students on an exam are normally distributed with a mean of 558 and a standard…

A:

Q: Suppose that the quarterly sales levels among health care information systems companies are…

A:

Q: 4. A surgeon is experimenting with a new technique for implanting artificial blood vessels. Using…

A: GivenMean(μ)=32.5standard deviation(σ)=2.6

Q: Suppose that water usages in American showers are normally distributed, with an average shower using…

A: We have given that,  X be the random variable from normal distribution with mean (μ) = 16.4 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.