Hypotheses and summary sample statistics are given for a test for a proportion. Test Ho: p= 0.5 vs H,: p0.5 when the sample has p = 0.54 and n = 120 Find the value of the standardized z-test statistic and then use the standard normal distribution to find the Round your answers to three decimal places. 2-test statistic p-value-

Q: i) When sample size (n) increases standard deviation of sampling distribution of ž, i.e., ., Oz&,…

A: Hello! As you have posted 3 different questions, we are answering the first question. In case you…

Q: Ho:u = 22.37 H1:u # 22.37 %3D Your sample consists of 48 subjects, with a mean of 22.1 and standard…

A: Given Data: x¯=22.1s=1.06n=48μ=22.37

Q: A survey finds that the average Malaysian household is expected to spend RM 2723.65 on…

A: Given Information: Sample size n=54 Sample mean x¯=2723.65 Sample standard deviation s=1493…

Q: What is the p-value for this sample? p-value = 0.2637× (Report answer accurate to 4 decimal places.)

A: The degrees of freedom is, df=n-1=98-1=97c is The degrees of freedom is 97. The test statistic is…

Q: How many standard deviations is the score from the sample mean Study 1 Scale range- 35(highest score…

A:

Q: Hypotheses and summary sample statistics are given for a test for a mean. Assume that the conditions…

A: Given X-bar=108 n=20 S=35.6 Mean=100

Q: A standardized​ exam's scores are normally distributed. In a recent​ year, the mean test score was…

A: The given data is as follows:Population mean, Population standard deviation, The test scores of 4…

Q: Testing: Ho:u = 22.37 H1:u # 22.37 %3D Your sample consists of 48 subjects, with a mean of 22.1 and…

A: Provided information: Mean = 22.1 Standard deviation = 1.06 Sample size = 48 H0: μ=22.37H1: μ≠22.37

Q: Solve the problem then sketch the normal curve. Hello, pls help me I badly needed this for my…

A: The given data is, 93 78 81 85 88 92 90 80 74 91 95 83 82 79 77

Q: The test scores for the analytical writing section of a particular standardized test can be…

A: From the provided information, Mean (µ) = 3.3 Standard deviation (σ) = 0.95 X~N (3.3, 0.95)

Q: Variance and Standard Deviation   What are the steps for calculating variance? Steps for standard…

A: 18, 15, 20, 22, 25

Q: cm. Based on statistics from a data​ set, his height converts to the z score of 5.17. How many…

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Q: The director of research and development testing and new drugs she wants to know if there's evidence…

A: Test statistic:Denote μ as the claimed mean; μ = 384. In a random sample of n = 79, the sample mean…

Q: A z-score of z = −2.00 indicates a position in a distribution __________. above the mean by a…

A: A z-score essentially defines the standardized distribution of the variable that is considered to be…

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A: Given data, 9,3,8,6,12,7,1,10   calculate the sample standard deviation?

Q: Statistics students believe that the mean score on a first statistics test is 65. The instructor…

A:

Q: Body temperatures of healthy adults have a bell-shaped distribution with a mean of 98.20°F and…

A: From the provided information, Population mean (µ) = 98.20 Population standard deviation (σ) = 0.62

Q: You are conducting a test of homogeneity for the claim that two different populations have the same…

A: Category  Population #1 Population #2 A 38 166 B 26 34

Q: (a) Determine the population the investigator is sampling from. (b) Test at the 0.05 level of…

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Q: To test the belief that sons are taller than their fathers, a student randomly selects 13 fathers…

A: The random variable height follows normal distribution. There are two dependent samples which are…

Q: (a) Can a normal distribution be used for the p distribution? Explain.

A: (a) Let p denotes the population proportion of successes. The sample size is 20, and population…

Q: Sample Proportion Question: In a normal distribution, what is the probability that a random sample…

A: Given,Sample size(n)=422Sample proportion(p^)=0.151-p^=1-0.15=0.85

Q: The literacy rate = 28.1%  15 random people are chosen X=number of people that are literate what…

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Q: A school gives an entry exam for admission. Suppose the score of this exam follows a normal…

A: Given that the score of the exam follows a normal distribution with a mean of 400 and a standard…

Q: Blood pressure is distribued Normally, with a mean of 85 mm and a standard deviation of 20 mm. As a…

A: Given,mean(μ)=85standard deviation(σ)=20sample size(n)=100

Q: Statistics students believe that the mean score on the first statistics test is 75.5. A statistics…

A: given sample size n=15step 1.let's setup the null hypothesis and alternative hypothesis null…

Q: -8 -6 -0-2- -0-1- 0.4 -0:3-

A: From the given graph, we have  Mean, μ = -6 Standard deviation, σ = 1

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A: Given the concentration of nitrate in a standard sample were measured by lab-1 and the results of…

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Q: 12 Use the table below to find the percentage of data items in a normal distribution the lie between…

A: The given table is, From the table, the percentage corresponding to z-score = 1.1 is,…

Q: Complete the table to find the sample Mean, Variance and Standard Deviation for the data shown…

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Q: The amounts (in oz) in cans of soda are given below. The cans are labeled to indicate that the…

A: Given data, 12.1 12.2 12.4 12.3 12.1 12.2 12.2 12 12 12.4 12.1 12 12.1…

Q: (c) Compute x– X2. X1 X2 Compute the corresponding sample distribution value. (Test the difference…

A: The provided sample means are shown below: Xˉ1=13\bar X_1 = 13 Xˉ2=15\bar X_2 = 15 Also, the…

Q: Students time to finish their homework is approximately normal with a mean of 80 minutes and a…

A: Suppose the random variable x defines the time to finish the exam.

Q: Here is a POPULATION of scores: 4 2 3 2 30. What is the standard deviation for this population of…

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Q: examine the normal quantile plot and determine whether the sample data appear to be from a…

A: The normal quantile plot is used to evaluate how well the distribution of a dataset matches a…

Q: received a score below 63 Half the scores to fall between 70 and 83 NO Half the scores to fal

A: We have,  μ=75σ=6 We will see all the five cases. 1). In the first case, we will find the…

Q: sample mean = 35 sample standard deviation =2.365 population mean =40 sample size n = 60 find…

A: We have given that,  sample mean (x̄) = 35, population mean (μ) =40 sample standard deviation (s) =…