Make up a sample of size n = 6 for which the average is −7 (note...

Question

Question

Make up a sample of size n = 6 for which the average is −7 (note the (−) sign). Not all 6 numbers should be identical.

math Statistics-And-Probability

Answer 1

Answer #1

All six members are identical.

Given, n = 6 , Mean = -7

Mean = X / n

-7 = X / 7

X = -49

Therefore,

Value of single sample = -49 / 7 = -7

Sample = -7 , -7 , -7 , -7 , -7 , -7

[ Here since all members are identical, value of single member = average = -7 ]

Answer 2

Similar Homework Help Questions

4 5 6 7 Find the minimum sample size n needed to estimate μ for the...

4 5 6 7 Find the minimum sample size n needed to estimate μ for the given values of c, o, and E. cz 0.95, σ 6.3, and ΕΞ2 Assume that a preliminary sample has at least 30 members 9n-(Round up to the nearest whole number) 10 12 13 14
R2. Let X ~ N(μ 10.82). Following up on R1, we will be approximating μ2, which...

R2. Let X ~ N(μ 10.82). Following up on R1, we will be approximating μ2, which we can see should be 100, For now, let the sample size be n = 3, Pick 3 random numbers from X, compute X., and repeat the process a total of 50000 times. Plot a smooth version of the histogram of these 50000 values for X: the plot(density(.. command in R wll be useful. Now find the average of your 50000 values and make...
A random sample of size n = 472 is taken from a population of size N...

A random sample of size n = 472 is taken from a population of size N = 9,700 with mean μ = −63 and variance σ2 = 176. [You may find it useful to reference the z table.] A-1 Is it necessary to apply the finite population correction factor? Yes No a-2. Calculate the expected value and the standard error of the sample mean. (Negative values should be indicated by a minus sign. Round "standard error" to 2 decimal places.)...

#7 Find the minimum sample size n needed to estimate mu for the given values of...

#7 Find the minimum sample size n needed to estimate mu for the given values of c, sigma, and E. c=0.90, sigma=7.4, and E=2 Assume that a preliminary sample has at least 30 members. n=_ (Round up to the nearest whole number.)
In a systematic random sample of size n drawn from a population of size N, how...

In a systematic random sample of size n drawn from a population of size N, how many random numbers need to be generated to identify those subjects who are included in the sample? n N/n N-n 1 n-1
6.-. What size should a sample be to estimate the average of a population that follows...

6.-. What size should a sample be to estimate the average of a population that follows a normal distribution in each of the following cases? a.ME = 5; ? = 40; ? = 0.01 b.ME = 10; ? = 40; ? = 0.01 c. Compare and comment the answers to sections (a) and (b).

6. A sample of size n- 200 has a known population standard deviation of 15.0. The...

6. A sample of size n- 200 has a known population standard deviation of 15.0. The population appears to be skewed. Determine whether a margin of error should be calculated using a critical value of za, a critical value of ta/2, or neither. Oa critical value of ta2 O a critical value of za O neither 7. The mean of a sample size n 35 is 1860. The standard deviation of the sample is 102 and the population is normally...
47% according to an average of the polls. For a random sample of size n =...

47% according to an average of the polls. For a random sample of size n = 50 citizens, the mean of the sampling distribution of the proportion of citizens support President Trump is [] (two decimal places).
4. Suppose the population proportion is p = .6 and N=212000. What sample size is required for the sample proportion...

4. Suppose the population proportion is p = .6 and N=212000. What sample size is required for the sample proportion to be normally distributed? 5. If a population is slightly skewed and my sample size is 12, is the sample normally mean distributed? me a normal distribution for If n-83 what is the smallest population size N that will give 6. 4. Suppose the population proportion is p = .6 and N=212000. What sample size is required for the sample...

The following is a set of data from a sample of size n( n=7): 16 ,...

The following is a set of data from a sample of size n( n=7): 16 , 7 , 2, 2 , 10, 11, -6. 1) Find the mean of the data set A) 7 B) 7.28 C) 6 D) 2 2) Find the mode of the data set A) 6 B) 2 C) 7 D) 7.28 3) Find the standard deviation of the data set A) 53 B) 7.28 C) 6.74 D) 318 4) The five-number summary of the data...