34. The ages of a certain population in a city is normally distributed with mean of 45 and standard deviation of 15. If the city has a population of 5000, how many would you expect aged 20 to 60? a. 3689 b. 3986 C. 3698 n 3059

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A: Givenx=16n=265significance level(α)=0.05

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A: Given data: Subject Before After 1 188 202 2 110 77 3 184 176 4 133 97 5 171 151 6…

Q: The standard normal distribution indicates that the proportion between 0 and +1.5 is .4332 (43%).…

A: The standard normal distribution indicates that proportion between 0 and +1.5 is 0.4332. So, 43% of…

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A:

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A: Given that  Margin of error =E =132 Population standard deviation =532 93% confidence level.

Q: The categories of a categorical variable are given along with the observed counts from a sample. The…

A: The given data table is,

Q: For the following Before/After data, calculate the t-obtained for a Related-Samples t-test. a. 2.53…

A: For using Paired t test 1) sample size of two samples should be equal 2) two samples should be not…

Q: • Example 1: A group of teachers is interested in knowing whether a relationship exists between the…

A:

Q: The US Department of Energy reported that 48% of homes were heated by natural gas. A random sample…

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A: Given data: The length of fish were measured at 3 different lakes.  Lake 1 Lake 2 Lake 3 3.5…

Q: 2. Thinking about experimental design and the ability to choose hypotheses before testing: Why might…

A: Hypothesis A hypothesis may be a testable statement about the connection between two or more…

Q: The hypothesis statement H: μ = 37 is an example of an alternative hypothesis. Select one: True O…

A: The hypothesis statement is H: µ = 37.

Q: n you randomly assign 25 of them to play a violent video game and the other 25 of them to play a…

A: Total number of school boys considered for the study  = 50 Sample 1: 25 Sample 1 boys are given to…

Q: The estimated prevalence is 25% and the desired confidence level is 95% with a margin of error of 4%…

A: The estimated prevalence =25% E= 4% CI =95% CI= 0.95 p= 0.25 E= 0.04

Q: PROBLEM 3: Compute for r, and interpret the result. The time x in years that an employee spent at a…

A: Followings are the Explanation of the Question'

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A: Givensample size(n)=10Mean(x)=125standard deviation(s)=24significance level=0.05

Q: A certain drug is used to treat asthma. In a clinical trial of the drug, 16 of 265 treated subjects…

A: Given,n=265x=16p^=xnp^=16265=0.06038α=0.05

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A:

Q: If you want to make a confidence interval for the mean with the TI-84, which of the following…

A: Given that,  The sample standard deviation(s) is known The function of Z-test is not correct because…

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A: We will use paired samples t test for the given problem and we will use R software for my…

Q: me results of a certain medical test are normally distributed with a mean of 127 and a standard…

A: Given data,Mean μ=127sd     σ=12P(X>133)=?

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A: GivenN=16standard deviation(SD)=2

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A: Hypothesis Testing A procedure for estimating how well someone could anticipate data findings in a…

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A:

Q: Consider the hypotheses shown below. Given that x= 116, o=26, n = 40, a=0.01, complete parts a…

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Q: INSTRUCTION: Choose the appropriate statistical test from the choices below and do not need an…

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Q: A coin-operated drink machine was designed to discharge a mean of 9 ounces of coffee per cup.…

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A: Hypothesis test are used when there is larger population. It used to take a sample from that…

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Q: 24 women

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Q: For the following two samples of scores, calculate the pooled variance from an Independent-Samples…

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A:

Q: The average speed of cars on 495 is 74 mph with a standard deviation of 6. What is the probability…

A: GivenMean(μ)=74standard deviation(σ)=6

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A: From the provided information,

Q: For the following two samples of scores, calculate the pooled variance from an Independent-Samples…

A: Given: n1=11n2=11M1=50M2=55SS1=86SS2=92

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

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Q: The ANOVA F test is a test to determine if there is evidence that  a particular mean is different…

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Q: Perform an appropriate statistical test using the dataset (Sheet name: Raw Data) if a researcher…

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Q: A group of eight individuals with high cholesterol levels were given a new drug that was designed to…

A: The paired t-test is performed in MINITAB for the given data. The procedure to perform paired t-test…

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Q: Assuming the population has an approximate no mean = 39 with a sample standard deviation Round the…

A: A sample size n=20 Sample mean=x=39 Sample standard deviation(s)=6 α=0.01

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A: Regression analysis  To test: H0: Coefficient of X=0, i.e. there is no relationship between…

Q: Suppose that random variable X is uniformly distributed between 5 and 29. Draw a graph of the…

A: The distribution of X follows uniform with a=5 and b=29.

Q: In a two-sample significance test for proportions, we test the claim that         [ Select ]…

A: Proportions are tested using z test. It can be used to compare sample and population. It may also…