Given a sample mean of 83, a sample standard deviation of 12.5, and a sample size of 22, test the hypothesis that the value of the population mean is 70 against the alternative that it is more than 70. Use the 0.025 significance level

Q: The National Weather Service says that the mean daily high temperature for October in a large…

A: Solution:   Let μ denote mean daily high temperature       for October  μ=56°F      Claim:  mean…

Q: Nationally, patients who go to the emergency room wait an average of 6 hours to be admitted into the…

A: Given,sample size(n)=12sample mean(x)=4.7standard deviation(s)=2.6α=0.05

Q: Nationally, patients who go to the emergency room wait an average of 6 hours to be admitted into the…

A: Given: Sample size n=13 Sample mean X¯=4.3 hrs Sample standard deviation s=2.9 hrs Population mean…

Q: For a sample of 12 items from a normally dis￾tributed population for which the standard deviation is…

A: Provided information is ;  sample size(n) =  12 items  population standard deviation(σ ) =  17.0,…

Q: The quality-control manager at a compact fluorescent light bulb (CFL) factory needs to determine…

A:

Q: In your work for a national health organization, you are aware that for prior studies of the amount…

A: Given Information: Population mean (u) = 205 milligrams Sample size (n) =25 Sample mean (x) = 218…

Q: An insurance company is reviewing its current policy rates. When originally setting the rates they…

A: we have given that n=40 ,mu=1800 , xbar=1950 and sigma=500 , alpha =0.05

Q: STEP 1. H0: µ o   H1: µ o         NOTE: For ≠ enter /=   STEP 2. This test is (e) left-tailed, (f)…

A: Given that  x̄ = 54 ,  μ = 56 , ? = 5.6 , n=37 Note: According to bartleby experts question answers…

Q: Do a hypothesis for the following, make sure to include and label all five steps:  Test the claim…

A:

Q: Suppose you are testing the null hypothesis that a population mean is greater than or equal to 60,…

A: State the hypotheses. That is, the population mean equals 60. That is, the population mean is less…

Q: A company that produces snack foods uses a machine to package 454 grams bags  of potato chips. A…

A:

Q: For a population with a mean of 72 and a standard deviation of 10 what is the standard error of the…

A: From the provided information, Mean (µ) = 72 Standard deviation (σ) = 10

Q: certain city, a researcher wishes to determine whether the average income of the residents is…

A: Given

Q: Nationally, patients who go to the emergency room wait an average of 5 hours to be admitted into the…

A: One sample t-test: One sample t-test is used to test the significance difference between population…

Q: Nationally, patients who go to the emergency room wait an average of 5 hours to be admitted into the…

A: Hey there! Thank you for posting the question. Since your question has more than 3 parts, we are…

Q: You may need to use the appropriate technology to answer this question. Suppose Michigan State…

A: Givensample size(n)=100Mean(x)=51286standard deviation(s)=5200α=0.01

Q: there sufficient evidence at a=0.01 to conclude that their health care expenditure differs from the…

A:

Q: Given a standard error of 5.2 with a sample size of 9. Then the standard deviation is

A: Solution: 4. From the given information, a standard error is 5.2 and n=9.

Q: Given a sample mean of 94.3, a sample standard deviation of 8.4 and a sample size of 6, test the…

A:

Q: Nationally, patients who go to the emergency room wait an average of 4 hours to be admitted into the…

A: As per our guidelines we are supposed to answer only 3 subpart of any questions so i am solving…

Q: A researcher claims that the mean of the salaries of elementary school teachers is greater than the…

A: Given: The descriptive statistics given is as follows

Q: Nationally, patients who go to the emergency room wait an average of 6 hours to be admitted into the…

A: Given,sample size(n)=13sample mean(x¯)=8.6sample standard deviation(s)=2.9population mean(μ)=6and…

Q: Nationally, patients who go to the emergency room wait an average of 7 hours to be admitted into the…

A: Note: Hey there! Thank you for the question. As you have specifically mentioned that you need help…

Q: A random sample of 6 has a mean of 52.9 and a standard deviation of 18.8. Is there sufficient…

A: The test is: two-tailed

Q: An ice cream company owns two plants, namely A and B, and wants to test using a 5% significance…

A: Given: The two plants of ice cream company are A and B. The level of significance is α=0.05. The…

Q: The National Weather Service says that the mean daily high temperature for October in a large…

A:

Q: particular brand of tires claims that its deluxe tire averages at least 50,000 miles before it needs…

A:

Q: Use a 0.05 level of significance to test the claim that the mean cost of a taxicab ride in New York…

A: The provided information is  x¯=12.04s=8.36n=40α=0.05a.The null and alternative hypothesis is…

Q: Nationally, patients who go to the emergency room wait an average of 7 hours to be admitted into the…

A: 1)The t-test statistic:Here, the sample size is small and sample standard deviation is unknown.…

Q: Nationally, patients who go to the emergency room wait an average of 5 hours to be admitted into the…

A: Given: Population mean =5 Sample mean=4.8 sample standard deviation=2.4 sample size=14 Level of…

Q: Toby's Trucking Company determined that on an annual basis, the distance traveled per truck is…

A: Given that :  The distance traveled per truck is normally distributed with a mean ( µ ) : 50,000…

Q: Nationally, patients who go to the emergency room wait an average of 4 hours to be admitted into the…

A: a. Since the population standard deviation is unknown, the appropriate test is one sample t-test.…

Q: for a sample of 150 that has a mean of 6540 and a standard deviation of .89, calculate the 95%…

A: It is given that mean and standard deviation are 6,540 and 0.89, respectively.

Q: Nationally, patients who go to the emergency room wait an average of 7 hours to be admitted into the…

A: The sample size n is 13.

Q: The National Weather Service says that the mean daily high temperature for October in a large…

A: Given that  The National Weather Service says that the mean daily high temperature for October in a…

Q: A tire producer wants to test whether the mean diameter of the tires produced on a given day equals…

A: Given random sample,n=49 x=36.4 and σ=0.8 inches alpha level =0.05 Here tire producer wants to…

Q: or a sample of 121 that has a mean of 6540 and a standard deviation of 780, calculate the 90%…

A:

Q: Nationally, patients who go to the emergency room wait an average of 7 hours to be admitted into the…

A: (a)   Determine the type of test used for the given study.   The type of study used for the given…

Q: For a population with a means of 72 and a standard deviation of 10 what is the standard error of the…

A: We have given that  Mean=72 Standard deviation=10 Sample size=25 Find the standard error

Q: If a class took an exam and scored a mean of 82 with a standard deviation of 12, what would be the…

A: Given, Mean(x)=82Standard Deviation(s)=12

Q: If n=25 and the sample standard deviation is 15, construct a 95% confidence interval for the true…

A: The confidence interval is used to estimate the population parameter with the help of a sample…

Q: Nationally, patients who go to the emergency room wait an average of 5 hours to be admitted into the…

A: 1. The population mean is to be compared with a suggested value here, when the population standard…

Q: It is necessary for an automobile producer to estimate the number of miles per gallon achieved by…

A: Given data: Significance level = 0.05

Q: You may need to use the appropriate technology to answer this question. Suppose Michigan State…

A:

Q: The high school athletic director is asked if football players are doing as well academically as the…

A: Given: Sample mean x¯=3.18 Sample standard deviation (s) = 0.54 Sample size (n) = 20

Q: Nationally, patients who go to the emergency room wait an average of 7 hours to be admitted into the…

A: From the provided information, Population mean (µ) = 7 hours Sample size (n) = 15 Sample mean (x̅) =…

Q: The​ quality-control manager at a compact fluorescent light bulb​ (CFL) factory needs to determine…

A: We have given that  Sample size n= 45  Sample mean = 7328 Population standard deviation = 840

Q: 10) A simple random sample of 20 credit ratings is obtained with a mean 660 and a standard deviation…

A: Given, Sample size = 20 Sample mean = 660 Sample standard deviation = 96   Set up the null and the…

Q: Nationally, patients who go to the emergency room wait an average of 5 hours to be admitted into the…

A: Hey there! Thank you for posting the question. Since your question has more than 3 parts, we are…

Q: For a sample of 60 women taken from a population of over 5,000 enrolled in a weight- reducing…

A: Given, n = 60 x¯ = 101, s = 42, α=0.02