Software output is not required for this assignment. (Problems 1-2) Taxes and Soda Consumption - Suppose that a sales tax on soda will be removed in a random sample of communities to measure the impact on soda consumption. We wish to determine whether average per-capita consumption of untaxed soda is greater than 50 gallons a year. 1. Write the hypotheses using words. H 0 H: a

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Q: For a standard normal distribution, find: P(Z > c) = 0.6638 Find c rounded to two decimal places.

A: It is given that the Z be a standard normal random variable.

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Q: In a study, 41% of adults questioned reported that their health was excellent. A researcher wishes…

A: Given, n is 12 , p is 41% = 0.41  By using binomial distribution.

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A: Given: x y x+y x-4y xy 2y   Mean = y+3 x+2y=22

Q: Assume that adults have IQ scores that are normally distributed with a mean of 95.9  and a standard…

A: Given mean=95.9, standard deviations σ=24

Q: An online vendor of high-end hiking apparel meticulously tracks the number of clicks on its website.…

A: Given information: Clicks occur completely randomly with an average of 342 clicks per minute.

Q: Hamsters STEM Assume that the weight of hamsters is normally distributed with μ = 1.2 lbs and o= 0.2…

A: Solution:  Let X be the weight of hamsters is normally distributed with mean 1.2 lbs and standard…

Q: this was completely wrong, and it took me more than hour

A: Given that We have to find  a.. Compute the mean and standard deviation of the random variable X,…

Q: X         0         1          2         3        4          5 P(X)    0.4    0.25      0.15…

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A: From given data we have : n=7 Calories (x) Sugar (y) 79 5 103 1 102 3 109 4 133 3 194…

Q: A researcher collected sample data for 19 middle-aged women. The sample had a mean serum cholesterol…

A: given data n = 19x¯ = 192.4s = 8.290% ci for μ.

Q: In hundreds of studies with many thousands of participants, first-born children scored better than…

A: Solution: Given information: x1= 469  Sample mean of first born x2= 456  Sample mean of second born…

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A: Required probability is P(Z>-1.69)

Q: Suppose that the length X of the life (in years) of a battery for a computer has a distribution that…

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Q: A pencil and two biros cost K1.80. Two pencils and a biro cost K1.20. What is the cost of; a) one…

A: Let p denotes pencil and b denotes biro.

Q: AGE DISTRIBUTION OF EMPLOYEES OF A BUSINESS Age Interval 15-24 25-34 35-44 45-54 55-64 Total Number…

A: Here mentioned : Age interval and number of employees : We have to tell Range of the ages of the 20…

Q: Let X be the amount of time (in hours) the wait is to get a table at a restaurant. Suppose the cdf…

A: Method: P(X≤x) = F (x)

Q: For major league baseball teams, is there a relationship between player payrolls and gate money?…

A: Given data is x y xy 59.2 25.56 1513.152 80.5 40.74 3279.57 97.0 31.98 3102.06 42.3 24.07…

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A: Given that, The teacher would like to know if the class will be able to absorb the lecture from a…

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Q: re to search Based on a sample of n = 28, the least-squares method was used to develop the predic…

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Q: A group of 29 statistics students were collecting data for a project in class. One of the variables…

A: 68-95-99.7 rule says  68% data lie within 1 standard deviations 95% data lie within 2 standard…

Q: prosperous 4.112 Education and income. Call a household if its income exceeds $100,000. Call the…

A: given data P(A) = 0.138P(B) = 0.261P(A and B) = 0.082P(A or B) = ?

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Q: *** a) Determine the probability that a randomly selected fatal crash in 2016 occurred in normal…

A: It is given that the data represent the number of drivers involved in a fatal crash in 2016 in…

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A: 100 adults : (29 liked movie) 20 teenagers : ( 8 liked movie)

Q: K Assume that population proportion is to be estimated from the sample described. Use the sample…

A: Given that  n = 535 , p^ = 0.4  95% confidence interval

Q: The claim is that for 11 AM body temperatures of females, the mean is less than 98.6°F. The sample…

A: Solution: Given information: n= 37 Sample size  Claim: For 11 AM the mean body temperature of…

Q: A dentist office gives a survey to all wisdom teeth extraction patients asking them to rate the…

A: Please find the explanation below. Thank you. Given a dentist office gives a survey to all wisdom…

Q: What diastolic blood pressure will 75% of the population be above?

A: It is given that  Mean, μ = 85 Standard deviation, σ = 13

Q: Itemized Charitable Contributions The average charitable contribution itemized per income tax return…

A: Given that.   X~N( μ , ?)   μ=792    , ?=103   Z-score =( x - μ )/?

Q: A data set includes data from student evaluations of courses. The summary statistics are n = 85, x=…

A: We have given that, Sample size n=85 Sample mean=3.94 Sample standard deviation=0.63

Q: Sheila's doctor is concerned that she may suffer from gestational diabetes (high blood glucose…

A: Given information: μ=140σ=12n=3=number of days Mean and standard deviation for the sample mean is,…

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A: Given : n=60​, p=0.10 and X=15 ​

Q: Data on 4500 college graduates show that the mean time required to graduate with a bachelor's degree…

A: given;sample size(n) = 4500mean(x¯)=6.38 yearsstandard deviation(s) =1.39 yearsconfidence level 95%…

Q: When studying radioactive​ material, a nuclear engineer found that over 365​ days, 1,000,000…

A: Given that : When studying radioactive​ material, a nuclear engineer found that over 365​ days,…

Q: Doctoral Student Salaries Full-time Ph.D. students receive an average of $12,837 per year. If the…

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A: Boxplot is basically a visual representation of 5 number summary which are : minimum, first…

Q: go and a standard de K IQ scores are normally distributed with a mean are taken from a large…

A: Given that.   X~N( μ , ?)   μ=95     , ?=18

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A: Solution-: A true false test consists of 50 questions. How many does a student need to get correct…

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A: Note: According to Bartleby guidelines expert solve only one question and maximum three subpart of…

Q: In a completely randomized experimental design, 11 experimental units were used for each of the 3…

A: Given that  SSb = 1200 , SST = 6000 n = 3*13 = 39 Treatment = k = 3

Q: The cumulative frequency function of a discrete variable X in group A is given by x < 12 12 < x < 32…

A: Hai

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A: Given that x = 524.800,   y = 303.660,   sx = 14.429,   sy = 11.200,   r = 0.9662  give the equation…

Q: (a) Construct a frequency distribution table. Take 23 as the lower limit of the first class and 7 as…

A: It is given that the data of the number of pizza orders received in 6 months from a sample of 30…

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A: The objective is to explain the logic of one-sided and two-sided significance tests.  To compare the…

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A: t-test are applied only to continuous scale of observations.  Independent sample t-test is used to…

Q: Assume that adults have IQ scores that are normally distributed with a mean of μ= 105 and a standard…

A: Let X be the adults IQ score are normally distributed with mean 105 and standard deviation 20.…