Question

Sales volume last weekend for four samples, each consisting of five car dealerships, were as follows:

Data Point | 1 | 2 | 3 | 4 | 5 |
---|---|---|---|---|---|

Sample 1 | 22 | 34 | 18 | 27 | 31 |

Sample 2 | 45 | 28 | 35 | 46 | 12 |

Sample 3 | 50 | 37 | 21 | 33 | 15 |

Sample 4 | 26 | 41 | 38 | 26 | 21 |

**What is the standard deviation of the distribution of
sample means?**

Please round your answer to the nearest tenth.

Note that the correct answer will be evaluated based on the full-precision result you would obtain using Excel.

Answer #1

Sales volume last weekend for four samples, each consisting of
five car dealerships, were as follows:
Data Point
1
2
3
4
5
Sample 1
37
15
43
25
21
Sample 2
38
31
12
19
28
Sample 3
16
21
45
32
25
Sample 4
19
10
45
37
22
What is the mean of the distribution of sample
means?
Please round your answer to the nearest tenth.
Note that the correct answer will be evaluated based on the...

Sales volume last weekend for a sample of ten car dealerships
were as follows:
Data Point
1
2
3
4
5
6
7
8
9
10
# Sales
44
12
20
49
23
30
34
21
14
36
What is the standard deviation of the sample
data?
Please round your answer to the nearest tenth.
Note that the correct answer will be evaluated based on the
full-precision result you would obtain using Excel.

Sales volume last weekend for a sample of ten car dealerships
were as follows:
Data Point
1
2
3
4
5
6
7
8
9
10
# Sales
21
10
19
35
23
34
44
29
15
30
What is the variance of the sample data?
Please round your answer to the nearest tenth.
Note that the correct answer will be evaluated based on the
full-precision result you would obtain using Excel.

The number of weekly sales calls by a sample of 25
pharmaceutical salespersons is below. 24, 56, 43, 35, 37, 27, 29,
44, 34, 28, 33, 28, 46, 31, 38, 41, 48, 38, 27, 29, 37, 33, 31, 40,
50 What is the shape of the distribution of the data?
please expalin how you use this on excel in step by step

The results of a sample of 372 subscribers
toWiredmagazine shows the time spent using the Internet
during the week. Previous surveys have revealed that the population
standard deviation is 10.95 hours. The sample data can be found in
the Excel test data file.
What is the probability that another sample of 372 subscribers
spends less than 19.00 hours per week using the Internet?
Develop a 95% confidence interval for the population mean
If the editors of Wiredwanted to have the...

Thirty nine women with a diagnosis of inoperable or metastatic
breast cancer have been followed-up for a number of years, while
under continuous treatment with a medication called trastzuzumab.
The time (in months) each patient remained in remission was
recorded. Remission is is a decrease or disappearance of signs and
symptoms of cancer. Below is the data.
50 74 35 39 21 37 27 35 30 35 26 38 34 34 26 41 61 33 33 26 25
41 35...

A car dealer believes that average daily sales for four
different dealerships in four separate states are equal. A random
sample of days results in the following data on daily sales:
Ohio: 3, 2, 6, 4, 4, 7, 2
New York: 10, 0, 7, 8, 0, Blank, Blank
West Virginia: 3, 4, 5, Blank, Blank, Blank, Blank
Pennsylvania: 20, 11, 8, 2, 14, Blank, Blank
Use ANOVA to test this claim at the 0.05 level.
Use Excel to support you...

*More than 2 dependent samples*
A cognitive psychologist was interested in the ability to solve
puzzles. He selected 24 college sophomores and matched them on the
basis of IQ and assigned, in groups of four, to one of four puzzle
conditions (six blocks of four). He wants to make sure that all the
puzzles are equally difficult. The dependent variable was the
amount of time it took for a subject to complete the puzzle. The
data are presented below. Were...

____________________________________________
The results of a sample of 372 subscribers to Wired
magazine shows the time spent using the Internet during the week.
Previous surveys have revealed that the population standard
deviation is 10.95 hours. The sample data can be found in the Excel
test data file.
What is the probability that another sample of 372 subscribers
spends less than 19.00 hours per week using the Internet?
____________________________________________
Develop a 95% confidence interval for the population mean
____________________________________________
If the editors...

Is there a significant difference in mean Highway MPG between
expensive and cheap cars?
I understand that I must conduct a hypothesis test and
confidence interval for two means. I have found the mean for cheap
cars to be 33.6, the standard deviation 5.57; the mean for
expensive cars 26.1, the standard deviation 2.14. Please use both
the critical values method and p-value method to determine if there
is a significant difference. Be mindful of outliers (cheap cars
outlier=50, expensive...

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