Sove the following problem. Show your complete workings. The mean weight of a sample of 100 new bon babies is 2.5 kg with standard deviation of 0.3. Find a 90%, 95%, and 99%, confidence interval of the population mean weight of new born babies. What can you conclude about the relationship of the confidence level with the resulting confidence interval?

Q: 1. Construct a 95% confidence interval to estimate the mean study hours per week for Wingate male…

A: The confidence interval for mean can construct by using the below formula…

Q: Find the value of the sample size needed if the confidence interval is 95% that the sample…

A: Given that  Margin of error =E =0.04 Sample proportion p^=0.45

Q: 2. Marta has constructed three confidence intervals for a population mean using the same sample for…

A: A confidence interval estimate is an interval estimate that includes the unknown population…

Q: You sample 36 families to find out how much they spent on groceries last month. Your sample mean is…

A: Given data,n=36x=540s=82α=0.05

Q: A random sample of 121 students from Clayton State was selected to estimate the average ACT score of…

A:

Q: If n = 16, 7 = 43, and s = 17, construct a confidence interval at a 98% confidence level. Assume the…

A:

Q: Part A: Make a 90% confidence interval for given that you have a sample of size 49 which produced a…

A: Given,margin of error(E)=0.2standard error(σ)=3.2α=1-0.90=0.10α2=0.05Z0.05=1.645      (from Z-table)

Q: p'= α %4 || Margin of Error: E We are 87% confident that the proportion of Americans who feel that…

A:

Q: You collect a sample of 61 observations of animal heights, in mm. The sample mean is 65.19 and the…

A:

Q: 2. A student did a poll of a sample of 32 students at Ooltewah and found their amount of pets they…

A: Note: Since you have posted multiple independent questions in the same request, we will solve the…

Q: How much more likely are college men than college women to participate in intramural sports?  A…

A: Given information: Number of college men surveyed, n1=688 Number of college women surveyed, n2=579…

Q: If n=27, (x-bar)=34, and s=3, find the margin of error at a 90% confidence leve Give your answer to…

A:

Q: How much does the fat content of Brand X hot dogs vary? To find out, researchers measured the fat…

A: Let Y: Fat content of Brand X hot dogs n=10 Given that 95% Confidence interval(CI) for population…

Q: You collect a sample of 69 observations of animal heights, in mm. The sample mean is 41.89 and the…

A: Given: x¯=41.89s=4.33n=69 The degrees of freedom is obtained as below: df=n-1=69-1=68 The critical…

Q: Suppose you wanted to take another sample of dogs to find a 90% confidence interval of young dogs to…

A:

Q: You measure 27 dogs' weights, and find they have a mean weight of 63 ounces. Assume the population…

A: The sample size, i.e., the no. of measured dogs, .The sample average weight (in ounces) of dogs,…

Q: one with a 95% confidence level and the other with a 99.7% confidence level. Which interval is…

A: Confidence interval is probability, which refers that population parameter will fall within set of…

Q: Based on this, construct a 90% confidence interval for the true population mean watermelon weight

A: It is given that Sample size n = 20 Sample mean M = 51 Population SD = 4.3 The critical value of Z…

Q: Suppose you survey a random sample from a large population to understand the population proportion.…

A: Given information- Margin of error, E = 6% = 0.06 Confidence level, c = 98% Since nothing is known…

Q: You are trying to calculate a confidence interval to estimate a population mean. After performing…

A:

Q: Assume that population mean is to be estimated from the sample described. Use the sample results to…

A:

Q: joan is researching the IQ of a particular monkey species. She measured the IQ in 15 monkeys with a…

A:

Q: A recent study of 25 students showed that they spend an average of $18.53 for gas per week. The…

A: Given: Sample size n = 25 Sample mean X = 18.53 Sample standard deviation s = 3

Q: You would like to construct a 99% confidence interval to estimate the population mean score on a…

A: Solution: Let X be the score. From the given information, x-bar=485 and S=70. Here, it needed to…

Q: We would like to know: "What percentage of college students drink alcohol every day?" In a random…

A:

Q: 1. Construct a 95% confidence interval to estimate the mean study hours per week for Wingate male…

A: The given information is as follows,1)The sample mean is The sample standard deviation is The sample…

Q: You have 16 vampire bats. These bats have a population variance of 3.4 ounces. You wish to make a…

A: Given: Sample size (n) = 16 Population variance σ2=3.4 Sample mean x¯=15.20 Confidence level = 0.950

Q: Which type of confidence interval should you use in this situation? A sample of 6 adult elephants…

A: It is given that Mean = 12200Sample std. deviation = 200Sample size = 6Confidence level = 95%

Q: Suppose a sample of 779 tenth graders is drawn. Of the students sampled, 202 read at or below the…

A: In question, Given that a sample of 779 tenth graders is drawn. Of the students sampled, 202 read at…

Q: If n = 530 and X = 424, construct a 99% confidence interval for the population proportion, p. Give…

A:

Q: You plan to build a 95% confidence interval estimate of the mean of a large population. You want a…

A: Givenconfidence level=95%Margin of error(E)=10standard deviation(σ)=200

Q: A physicist examines 10 water samples for iron concentration. The mean iron concentration for the…

A: Sample mean = x̅ = 0.711 Sample size = n = 10 Sample S.D = s = 0.0816 Standard Error = s/√n  =…

Q: If n=25, z-46, and s=5, construct a confidence interval at a 95% confidence level. Assume the data…

A:

Q: magine that you conduct a study and estimate that the prevalence of hypertension among employees of…

A: From the provided information, Sample proportion (p̂) = 0.24 Margin of error for a 95% confidence…

Q: Mark each statement TRUE or FALSE. For these problems, assume that to estimate average time spent…

A: It is given that the sample size is 10.

Q: To construct a 95% Confidence Interval, we have to find the margin of error (ME), and we can use the…

A: From the provided information, Confidence level = 95% Standard error (SE) = 0.049 The z value at 95%…

Q: a sample of 25 automobiles shows that the mean price was $20,500 with standard deviation of $2,500.…

A: Givensample size = n = 25Mean price = $20,500Standard deviation = $2500 The distribution is normal.…

Q: You measure 49 dogs' weights, and find they have a mean weight of 72 ounces. Assume the population…

A:

Q: Translate the statement into a confidence interval. Approximate the level of confidence. In a…

A:

Q: You measure 43 dogs' weights, and find they have a mean weight of 34 ounces. Assume the population…

A: The objective of this question is to construct a 95% confidence interval for the true population…

Q: Assume that population mean is to be estimated from the sample described. Use the sample results to…

A: Given information Sample size (n) = 49 Sample mean x̅ = 55.1 Standard deviation (s) = 4.8…

Q: 6. A sample of 15 students was used to estimate the performance of graduates of a certain college on…

A: Given : A sample of 15 student's was used to estimate the performance of graduates of a certain…