need standard deviation p

Q: Develop a 95% confidence interval estimate of the mean amount spent per day by a family of four…

A: It is given that Sample size n = 64 Sample mean M = 252.45 Sample SD s = 74.50 The critical value of…

Q: 3. A random variable that can be used to find a 0.954 confidence interval for u, the mean of the…

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Q: I have a variable that is correlated to Y and to X1 in a linear regression model. If I ommit it it…

A: If the variable z1 is correlated to Y and to X1 excluded from the linear regression model, then the…

Q: A store calculates that the mean spent per order is $8.68 with a standard deviation of $2.85. What…

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Q: Housing expenses are an important part of a personal budget. Use the internet to research what…

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Q: In a large clinical trail, 396,234 children were randomly assigned to two groups. The treatment…

A: From the provided information, The treatment group consisted of 200,074 children given a vaccine for…

Q: Consider the following hypotheses: He: = 8 HA: 8 The population is normally distributed. A sample…

A: Given data is 6,9,8,7,7,11,10sample size(n)=7 H0:μ=8HA:μ≠8

Q: Suppose we wish to test Ho: µ = 47 versus Ha: µ > 47. What will result if we conclude that the mean…

A: The type I error is defined as rejecting the null hypothesis when it is true. The type II error is…

Q: after checking the hypothesis tests, please explain briefly how you should proceed given the result…

A: After testing the parametric assumptions tests, the researcher need to test the effects of factors…

Q: whether that strategy will produce a greater weight loss. A group of 40 volunteers loses an average…

A: Here given  Sample size=n=40 sample mean=X¯ = 16.3 Pounds  Population standard deviation=σ=5 Pounds…

Q: A pizza delivery chain advertises that it will deliver your pizza in 35 minutes from when the order…

A: Given that  Sample size n =13 Sample mean =39.4 Standard deviation =6.4

Q: Given the weighted voting system [q: 5, 4, 3, 2], find all values of q that would grant all players…

A: Given Information: Consider the given weighted voting system.      q:5,4,3,2   Player 1 can take the…

Q: Example 20.13 The following table gives prices and quantities for the base year and the current year…

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Q: Listed below are the lead concentrations in μg/g measured in different traditional medicines. Use a…

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Q: Supercavitation is a propulsion technology for undersea vehicles that can greatly increase their…

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Q: What calculator button would be used to perform a hypothesis test if the null and alternative…

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Q: Suppose that 30% of all students who have to buy a text for a particular course want a new copy (the…

A: As per our guidelines we can solve first three sub part of question and rest can be reposted.…

Q: For each case, determine the two variables and tell whether the relationship is positive or…

A: For each case, determine the two variables and tell whether the relationship is positive or…

Q: You are a manager for a local vending machine company, and are responsible for reviewing the…

A: Given: μ=995n=30x¯=754.68s=288.19α=0.10

Q: 7. Let X₁, X2, ..., Xn be a random sample from normal distribution with mean and standard deviation…

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Q: You are the manager of a local cinema, and want to investigate how much the average customer spends…

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Q: City planners plan to survey residents to estimate the proportion of city residents who use public…

A: Voluntary response sample: A sample in which the respondents participate by themselves is called a…

Q: Suppose the reaction temperature X (in °C) in a certain chemical process has a uniform distribution…

A: Let X denote the reaction temperature. Given that X follows Uniform(A = -6, B = 6). Then the…

Q: Is the average time to complete an obstacle course longer when a patch is placed over the right eye…

A: There are two dependent samples which are right and left. We have to find the test statistic and…

Q: b-2. Find the p-value. p-value < 0.01 0.01 s p-value < 0.025 0.025 s p-value < 0.05 0.05 s p-value <…

A: We need to test: Ho: p =0.45;  HA :p ≠0.45

Q: A pizza delivery chain advertises that it will deliver your pizza in 35 minutes from when the order…

A: Given that  Sample size n =13 Sample mean =39.4 Standard deviation =6.4

Q: Consider a sample of 54 football games, where 30 of them were won by the home team. Use a 0.01…

A: We have given that  Hypothesized population proportion = 0.5 Favourable cases = 30  sample size = 54…

Q: Example 20.9 Suppose we have the following two indices, Index A with base year 1990 = 100 and Index…

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Q: Use the sample data and confidence level given below to complete parts (a) through (d). In a study…

A: We have given that,  Favorable cases (X) = 1111 and sample size (n) = 2516 Then,  We will find the…

Q: In a study of the accuracy of fast food drive-through orders, one restaurant had 39 orders that were…

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Q: 2. Two modeling scouts are on the bus rating the attractiveness of their fellow passengers on a…

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Q: Given the paired data (10,7), (4,6),(8,4), (4,5), (9,4), (5,5), (1,3). We want to rest the claim…

A: Given that data.  (10,7), (4,6),(8,4), (4,5), (9,4), (5,5), (1,3).

Q: The following table gives the population of a predator animal over eight years. 1 2 3 4 5 6 7 8 Year…

A: Given the data as Year Population 1 304 2 294 3 290 4 292 5 297 6 305 7 316 8 326

Q: Two-Face decided to kill time by flipping four distinct coins. Describe Two-Face's imagined scenario…

A: Four distinct coins are flipped with some outcomes. The scenarios are to be described based on the…

Q: 1. (12pt) A researcher is studying hospital cleanliness comparing carpeted rooms with uncarpeted…

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Q: You are analyzing a dataset with 749 datapoints. You decide to create a linear regression model with…

A: Degree of freedom for Total Sum of Square = n-1 Degree of freedom associated to error Sum of Square…

Q: It currently takes users a mean of 26 minutes to install the most popular computer program made by…

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Q: 2. A jar contains 12 marbles: 4 red, 5 blue, and 3 orange. If you pull 3 marbles without…

A: The total number of marbles is 12 Red marbles=4 Blue marbles=5 Orange marbles=3 There 3 marbles are…

Q: Consider the following hypotheses: He: uz 155 HA: H < 155 The population is normally distributed. A…

A: From the provided information, Sample size (n) = 6 Level of significance (α) = 0.05

Q: scatter diagram, you would expect the correlatio ore is Mx = , and the mean y score is M values for…

A: x y 6 2 9 3 6 4 8 6 1 10 positive correlation : it is an association between variables.…

Q: This is my output from SPSS [attatched] and I need to make a results section for it for this study:…

A: T test is used to measure the mean significance exist between the sample and the population. It…

Q: Suppose that 1000 customers are surveyed and 850 are satisfied or very satisfied with a…

A: Given,n=1000x=850sample proportion(p^)=xnsample proportion(p^)=8501000=0.85H0:P=0.9H1:P≠0.9α=0.095

Q: An engineer is going to redesign an ejection seat for an airplane. The seat was designed for pilots…

A: Mean(µ) = 158 lbStandard deviations (σ) = 30.6X ~ N (µ, σ )= N(158, 30.6)

Q: Refer to the accompanying table, which describes results from groups of 8 births from 8 different…

A: Let X be the random variable having probability mass function is,  X P(X)  0 0.002 1 0.031…

Q: You are analyzing a confidence interval using a 90% confidence level in your analysis. You collect a…

A: The random variable X follows normal distribution. We have to find the confidence interval for the…

Q: b) Suppose that an experimenter tossed three balanced coins. He defined X₁, to denote the number of…

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Q: It is known that roughly 2/3 of all human beings have a dominant right foot or eye. Is there also…

A: Given that  Sample size n =130 Favorable cases x =80 Sample proportion p^=x/n  =80/130 =0.6154

Q: You are testing the reliability of a thermometer. Your manager asks you to conduct an experiment…

A: GivenMargin of error(E)=0.05standard deviation(σ)=0.8confidence interval == 95%

Q: W .00 110H₂:μ₁ sulav μ₂=0 H₁: μ₁ −μ₂ #0 drogeri belis-owl a botavanomab ow.alqmsxs gribo de al eal…

A: Given that : Sample 1 n1 = 80 m1 = 104 ?1 = 8.4 Sample 2  n2 = 70 m2 = 106 ?2 = 7.6 By using the two…

Q: A scientist would like to test if a certain vaccine’s side effect is increased heart rate. To test…

A: Given : x = 80σ = 20n = 35μ = 87