Question

Data |
Question |
Answer |
Formula Used |
||

69 | |||||

57 | How many data observations are present (sample size)? | ||||

61 | What is the sum of the data? | ||||

53 | What is the mean (average) of the data? | ||||

75 | What is the median of the data? | ||||

59 | What is the minimum value of the data? | ||||

52 | What is the maximum value of the data? | ||||

61 | |||||

79 | What is the square root of the sample size? | ||||

86 | What is the value of the third observation when squared? | ||||

90 | |||||

742 | What is the square root of the sample size rounded to two digits? | ||||

What is the square root of the sample size rounded down to the next whole number? | |||||

What is the square root of the sample size rounded up to the next whole number? | |||||

What is the sample variance? | |||||

What is the sample standard deviation? | |||||

What is the sample variance rounded to two decimals? | |||||

What is the sample standard deviation rounded to two decimals? | |||||

How many observations are less than 75? | |||||

Is the mean less than 75 (TRUE or FALSE)? |

Answer #1

1)Given a sample mean is82, the sample size is 100and the
population standard deviation is 20. Calculate the margin of error
to 2 decimalsfor a 90% confidence level.
2)Given a sample mean is 82, the sample size is 100 and the
population standard deviation is 20. Calculate the confidence
interval for 90% confidence level. What is the
lower limit value to 2 decimals?
3)Given a sample mean is 82, the sample size is 100 and the
population standard deviation is...

A sample of data is drawn from an unknown population. The sample
size is n = 30, with a mean of 21.4, and sample standard
deviation of 7. What is the upper confidence limit (UCL) of the 98%
CI?
Round to two decimals and include leading zeros if
necessary.

1. A sample of data with n = 43 observations is used to run a
multiple regression with 5 independent variables. If this data set
has SST = 1908.5 and SSR = 1055.4, what is the value of the
adjusted multiple coefficient of determination? Round your answer
to three decimal places.
2. A sample of data with n = 43 observations is used to run a
multiple regression with 6 independent
variables.
If this data set has SST = 1314.8...

A sample of 69 observations is selected from one population with
a population standard deviation of 0.79. The sample mean is 2.69. A
sample of 48 observations is selected from a second population with
a population standard deviation of 0.67. The sample mean is 2.61.
Conduct the following test of hypothesis using the 0.05
significance level:
H0: μ1 – μ2≤ 0
H1: μ1 – μ2 > 0
a. State the decision rule. (Round the
final answer to 2 decimal places.)...

1.Suppose a normally distributed set of data with 6200
observations has a mean of 116 and a standard deviation of 19. Use
the 68-95-99.7 Rule to determine the number of observations in the
data set expected to be above a value of 135. Round your answer to
the nearest whole value.
2.A manufacturer knows that their items have a normally
distributed lifespan, with a mean of 9.5 years, and standard
deviation of 1.6 years.
The 9% of items with the...

The following data are from a simple random sample (The
population is infinite):
Sample Size: 166
Sample Mean: 15.5
Population Variance: 138
If the Analysis was run as a two tailed test find the Margin of
error ± using an alpha value =0.10 (Input the absolute value for
the margin of error (that is if the answer is ± 3.1, input 3.1) ,
Use 2 decimals in your answer) Use the appropriate table.

Data are drawn from a bell-shaped distribution with a mean of
230 and a standard deviation of 5. There are 1,700 observations in
the data set. a. Approximately what percentage of the observations
are less than 240? (Round your answer to 1 decimal place.) b.
Approximately how many observations are less than 240? (Round your
answer to the nearest whole number.)

A sample of 57 observations is selected from one population with
a population standard deviation of 0.73. The sample mean is 2.62. A
sample of 54 observations is selected from a second population with
a population standard deviation of 0.64. The sample mean is 2.5.
Conduct the following test of hypothesis using the 0.1 significance
level: H0: μ1 – μ2 ≤ 0 H1: μ1 – μ2 > 0
a. Is this a one-tailed or a two-tailed test? This is a...

Question 1 (1
point)
Suppose that a sample of size 60 is drawn from a population with
mean 88 and standard deviation 61 . Find the value of , the mean of
the distribution of sample means.
Wrtie only a number as your answer.
Your Answer:
Question 2 (1
point)
Suppose that a sample of size 68 is drawn from a population with
mean 64 and standard deviation 46 . Find the value of , the
standard deviation of the...

The following data values represent a sample of
the heights of female college basketball players. SHOW WORK.
Heights in Inches
65 66 66 67 68 68 68 69 69 69 69 70 71
72 72 72 73 75 75 75 75 76 76 76 76
a) Determine (to two decimal places) the mean height and sample
standard deviation of the heights.
b) Determine the z-score of the data value X = 75 to the
nearest hundredth.
c) Using results from...

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