a. State the null (H0) and alternative hypothesis (Ha). b. Use Excel to find the test statistic and to find the P-value.  c. State your conclusion in terms of the null hypothesis.

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A: To find CI for a population proportion. Let p be pop. proportion. Given that, Sample size…

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A: The distribution of the wages in three branches of the project company was given.

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A: Sample size, n=10 Number of successes, x=7 Population proportion, p=0.50 Significance level, α=0.05

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Q: On-line Retailer Suppose the 300 sorted purchase amounts were: 24, 28, 32, 44, ..., 83, 89, 92, 101…

A: Minimum=24, maximum=101, number of class =9

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A: Probability distribution table.  x P(x) 0 0+ 1 0+ 2 0+ 3 0+ 4 0+ 5 0.0004 6…

Q: Suppose a study reported that the average person watched 3.34 hours of television per day. A random…

A: n=15, sample mean X̄=4.4, s=1.262, level of significance ɑ=0.10

Q: I asked a sample of SCOB instructors how many football games they watched a particular weekend and…

A: From the provided information, The data values are as follow: 0, 3, 4, 1 Sample size (n) = 4

Q: Solve for S2 within using the following: x=27.8; s²= 7.56; N₁ = 1 x₂ = 21.8; s²= 2.92; N₁ = 4 2 x =…

A: Given x¯1=27.8, s12=7.56, N1=4 x¯2=21.8, s22=2.92, N2=4 x¯3=33.5, s32=5.66, N3=4

Q: I see that you ran a correlation for Pearson's r, can you run a linear regression?

A: The table below shows the values required to calculate the correlation coefficient. x y x-x¯…

Q: Based upon your answers to 1A and 1C, specify whether you would reject the null hypothesis or would…

A: p=0.25, n=100

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A: Of 40 first-time buyers, 11 preferred European stylings, and 29 preferred Japanese styling. Of 60…

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A: 1.9, 2.3, 2.2, 1.9, 1.6, 2.6, 1.4, 2.0, 2.0, 2.2 CL=0.95

Q: 190 AGA 14. The mean age of bus drivers in Chicago is 48.7 years. a. If a hypothesis test is…

A: The mean age of bus drivers is 48.7 years.

Q: What is the lower bound for a 95% confidence interval for the specificity of the following screening…

A: INFECTED  Healthy Total positive  50(TP) 29(FP) 79 Negative  15(FN) 116(TN) 131 Total 65 145…

Q: 7. The times per week a student uses a lab computer are normally distributed, with a mean of 4.5…

A: Mean=4.5 Standard deviations=1.8

Q: issued for each day. The data are listed below. At values. 70 48 41 68 69 55 70 57 60 83 32 60 72 58

A: Let μ be the population mean speeding tickets. Given that, The data set contains 14 observations.…

Q: a test of the hypothesis Ho: μ= 10 versus H₂: μ#10 a sample of n = 50 observations possessed mean x…

A: n =50x¯ =10.7s = 3.1α = 0.01hypothesis : H0 : μ = 10H1 : μ ≠ 10

Q: HatsforAll, a major producer of hats, hired a research firm to study the demand for its hats. The…

A: b1=-5.8, SEb1=0.8b2=-20.8, SEb2=15.6

Q: K Assume that when adults with smartphones are randomly selected, 54% use them in meetings or…

A:

Q: 13) The following probability table shows probabilities concerning Favorite Subject and Gender. What…

A: The following probability table shows probabilities concerning Favorite Subject and Gender.…

Q: The one-sample chi-square focuses on the distribution of two variables.

A: The one-sample chi-square focuses on the distribution of two variables.

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A: Note:- "Since you have posted a question with multiple sub parts, we will provide the solution only…

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A: Given the data of a study of patients with stage I breast cancer is run to assess time to…

Q: 11. The given statements represent a claim. Identify the claim, Ho and Ha a. μ = 9.3 b. σ<9.2

A: This is to be noted that, essentially, the null hypothesis (denoted as H0) implies a claim related…

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A: 7) It is needed to check whether there is a dependent relationship between the age and the…

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A: n=1415​ p=35

Q: For each question, find: Hypotheses   Type of test, level of significance  Test statistic  P-value…

A: Sample size, n=100 Sample mean, x¯=7.01 Sample sd, s=3.74

Q: the 95% confidence interval for a parameter µ is (3.1, 5.1) and the 99% confidence interval for µ is…

A: the 95% confidence interval for a parameter µ is (3.1, 5.1) and the 99% confidence interval for µ is…

Q: Suppose a sample of size n is to be drawn from a normal distribution where σ is known to be 14.3.…

A: σ = 14.395% ci ; E = 1.53n = ?

Q: The Ankle Brachial Index (ABI) compares the blood pressure of a patient's arm to the blood pressure…

A: n = 187x¯ =0.86s = 0.16α = 0.01claim : μ ≥ 0.9

Q: The following output is from a multiple regression analysis that was run on the variables FEARDTH…

A: Given the SPSS output from a multiple regression analysis that was run on the variables FEARDTH…

Q: In a test of the hypothesis Ho: μ= 10 versus H₂: μ#10 a sample of n = 50 observations possessed mean…

A: The sample size is 50 The sample mean is 10.7 The sample standard deviation is 3.1

Q: You suspect minority students are not as supportive of the new principal of a large school because…

A: We have given thatn1 = 56 , x1 = 45n2 = 33,  x2 = 21Significance level (α) = 0.05Now,p̂1 = x1/n1 =…

Q: You are given the sample mean and the population standard deviation. Use this information to…

A: We have given that.Sample size (n) = 80Sample mean (x̅) = 84.56Standard deviations (σ) = 15.26

Q: During the course of a tournament , john first serve speeds averaged 115 mph. Assumer that the…

A: Mean(μ)=115 standard deviation(σ)=4

Q: In a Normal distribution, the Empirical Rule states that...       ["", "", "", "", ""]  of the data…

A: Answer:- We know that, Empirical rule:-  68%, 95% and 99.7% of the data lie within 1 , 2 , and 3…

Q: Helena gathers data about the music preferences of users of a social media application. She gathers…

A: Part A: To simulate the outcome of several trials, we can use Python and generate random numbers…

Q: For a standard normal distribution, given: P(Z < c) = 0.0614 Find c.

A: Answer:- For a normal distribution, given P(Z &lt; c) = 0.0614  We use Excel function to find the…

Q: a. Give the value of the correlation coefficient and interpret its meaning. -Correlation Coefficient…

A: AS per guidelines i have calculated 3 subparts  plz repost for remaining parts with note i need this…

Q: 1. A researcher expects that the number of people (18 years and older) who report binge drinking in…

A: The hypothesized value of population proportion is p=0.25 i.e., proportion of people binge drinking…

Q: Consider the following time series data. Week 1 2 3 Value 18 12 16 11 17 13 (b) mean squared error…

A: The time series data set is given as: Week Value 1 18 2 12 3 16 4 11 5 17 6 13

Q: A poll of 2,079 randomly selected adults showed that 90% of them own cell phones. The technology…

A: Test of p=0.93 vs p≠0.93 Sample X N Sample p 95% CI Z-Value P-Value 1 1876 2079 0.902357…

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A: The normal distribution is a type of continuous distribution function. It has a bell-shaped curve…

Q: Find the probability that at least 1 student misses the weekly quiz. b. Find the mean value of x.…

A: x p(X) x*p(X)   x 2*p(x) 0 0.5 0 0 1 0.3 0.3 0.3 5 0.1 0.5 2.5 10 0.1 1.0 10     1.8 12.8