You want to use a sample size such that about 95% of the averages fall within 13 minutes of the population mean for average sleep time (in hours). The population standard deviation for sleep time is 1.84 hours. What is the smallest sample size required? Type your answer...

Q: The number of goals scored by a college soccer team for a given season are 4, 9, 0, 1, 3, 12, 3, 7,…

A: The population mean is, μ=∑xN=4+9+0+1+3+12+3+7+4+5+8+212=5812=4.8333 The population mean is 4.8333.

Q: a successful basketball player has a height of 6 feet 9 inches, or 206 cm. Based on statistics from…

A: Given,           Z -score=4.45           A basket ball player has a height of  6 feet 9…

Q: Observe the values of the means and standard deviations in the four samples you gathered and list as…

A: Simple random sampling is the technique of selecting the in such a way that way each sample has an…

Q: One-Sample Statistics Std. Deviation Std. Error Mean Mean hrs1 NUMBER OF HOURS WORKED LAST WEEK 895…

A: From the given output, it is clear that t test had been done. 1. The test done was One sample t test…

Q: A population has mean 49 and standard deviation 5. What is the data value that has a z-score of 2?…

A:

Q: Imagine that you and four of your classmates have measured the density of air and recorded the…

A: Let X be an density of air kg/m3. Therefore, X=1.27,1.21,1.28,1.25,1.24 We have to find average,…

Q: If you have 100 people in your sample, what would be the degrees of freedom you use to calculate the…

A: Given, n=100 Degree of freedom(df)=?

Q: Angela polled her first grade class about their family pets. The following data lists the number of…

A:

Q: Find the estimated standard error for the sample mean

A: Here  n = 14 and SS= 4238.

Q: Find the estimated standard error for the sample mean for n = 16 and SS = 3922. Nearest hundredths…

A: We find the standard error using the formula

Q: Decide if the following statement are true or false.  If the statement is false, please correct it.…

A: Given statement is : The sample mean is denoted by ?μ and is a point estimate for the population…

Q: You want to know the percentage of utility companies that earned revenue less than 39 million or…

A: Given data You want to know the percentage of utility companies that earned revenue less than…

Q: Use the sample mean(78.5)and sample standard deviation (12.3671)in your calculations below. Use…

A: Given information:

Q: A statistician was exploring a set of data representing a group of 121 women.  The mean was 49 and…

A: Sample size, n = 121 Mean = 49 Variance σ2 = 9 We have to find the standard deviation.

Q: Find the estimated standard error for the sample mean for n = 10 and SS = 3896. Nearest hundredths…

A:

Q: (a) Find the standard error of the mean for each sampling situation (Round your answers to 2 decimal…

A: Given : From image given in a question a. σ=16, n=16 b. σ=16, n=64 c. σ=16, n=256

Q: I am not familiar using the standard deviation formula for my statistics class

A:

Q: Using the following set of data (the same as in the previous problem), find the sample standard…

A: Given data, 8, 7, 11, 10, 10, 8 sample standard deviation=?

Q: A student studying statistics wants to look at data for his favorite sport, American football. He…

A: It is given that that a student collect data on the lengths of 100 field goals from various games…

Q: a. What is the experimental unit in this experiment?   b. What are the population and sample in…

A: The provided situation is, a researcher is interested in finding the mean and median lengths of all…

Q: For the following sample data, answer the following: Remember you can copy and "paste special" the…

A: Mean refers to the average of a data set. It is obtained by the formula x¯=∑xin, where ∑xi is the…

Q: Find the estimated standard error for the sample mean for n = 16 and SS= 3806. Round to the nearest…

A: Ans - Find the estimated standard error for the sample mean for n = 16 and SS =  3806.…

Q: Which of the following is the value of ?0.05 with a sample size of 10?     a. 1.812 b. 1.900 c.…

A: Given that,  alpha=0.05 Sample size n=10

Q: e. Let the sample mean approximate u? And the sample standard deviation approximate o? The…

A:

Q: For the sample scores in the frequency distribution table below, the median is 1 4. 4. 1 1 3 21

A:

Q: if the 90% Ci for the population mean is (-1, 4.4) what is the sample mean a. can't be found b. 2.7…

A:

Q: Which is not a measure of dispersion? a. Mean b. Standard deviation c. Variance d. Range

A: Explanation: The measure of dispersion is as follows: Standard deviation Variance Range…

Q: Find the estimated standard error for the sample mean for n = 13 and SS = 3639. Nearest hundredths…

A: It is given that n = 13 and SS = 3639.

Q: A. Population ? B. Population mean ? C. Median ? F. IQR ? G. Population standard deviation ?H.…

A: a). Population: The overall group of objects about which conclusions are to be drawn is called the…

Q: For the sample data 7, 9, 10, 11, 13, 22find the standard deviation (give your answer in three…

A: Given data is7,9,10,11,13,22sample size(n)=3

Q: For the following data in the sample:     0,    6,    8,    6,    5 Find the mean and the standard…

A: The data is given as 0, 6, 8, 6, 5.

Q: Find the mean, median, standard deviation, and variance of the sample data. Also, from the original…

A: Data is given : We have to calculate mean,median, standard deviation and variance. First arrange…