Question

A market analyst wants to know if the new website he designed is showing increased page views per visit. A customer is randomly sent to one of two different websites, offering the same products, but with different designs. The accompanying table shows the data from 30 randomly chosen customers from each website. Complete parts a through e below.

c) Find the sample variance for each website.

s Subscript Upper A Superscript 2s2A= __

s Subscript Upper B Superscript 2s2B= __

A | B |

4 | 3 |

14 | 13 |

9 | 10 |

7 | 9 |

14 | 13 |

2 | 3 |

8 | 15 |

3 | 4 |

10 | 9 |

12 | 11 |

3 | 2 |

12 | 14 |

15 | 12 |

12 | 13 |

2 | 3 |

9 | 8 |

11 | 8 |

3 | 4 |

12 | 11 |

13 | 14 |

13 | 12 |

9 | 10 |

7 | 6 |

5 | 6 |

11 | 13 |

13 | 14 |

7 | 8 |

4 | 3 |

8 | 7 |

12 | 15 |

Answer #1

Ans:

For upper superscrit the sample variance is

For upper superscrit B the sample Variance is

A market analyst wants to know if the new website he designed is
showing increased page views per visit. A customer is randomly sent
to one of two different websites, offering the same products, but
with different designs. The accompanying table shows the data from
five randomly chosen customers from each website. Test the null
hypothesis that the mean number of page visits is the same for the
two websites. Assume that the data come from a population that is...

A market analyst wants to know if the new website he designed is
showing increased page views per visit. A customer is randomly sent
to one of two different websites, offering the same products, but
with different designs. The accompanying table shows the data from
five randomly chosen customers from each website. Test the null
hypothesis that the mean number of page visits is the same for the
two websites. Assume that the data come from a population that is...

A market analyst wants to know if the new website he designed is
showing increased page views per visit. A customer is randomly sent
to one of two different websites, offering the same products, but
with different designs. The accompanying table shows the data from
five randomly chosen customers from each website. Assume that the
data come from a distribution that is Normally distributed.
Complete parts a through c below.
LOADING...
Click the icon to view the data table of...

A market analyst wants to know if the new website he designed is
showing increased page views per visit. A customer is randomly sent
to one of two different websites, offering the same products, but
with different designs. Assume that the data come from a
distribution that is Normally distributed. The data is shown in the
table to the right. Complete parts a through c below.
Website 1:
n1= 70
y1= 7.8
s1= 5.1
Website 2:
n2= 95
y2= 7.2...

A market analyst wants to know if the new website he designed is
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parts a through d below.
Website 1
Website 2
n1=80
n2=90
y1= 6.9
y2=6.8
s1= 3.7
s2=3.5
( , )
Find a 95% confidence interval for the mean difference,
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Website 1
Website 2
12
13
4
12
13
4
10
2
6
7
A market analyst wants to know if the new website he designed is
showing increased page views per visit. A customer is randomly sent
to one of two different websites, offering the same products, but
with different designs. The accompanying table shows the data from
five randomly chosen customers from each website. Complete parts a
through e below.
LOADING...
Click the icon to view the data...

A business analyst wants to know if a new website design
compared to an old website design is showing increased page views
per visit. Two different samples of customers are randomly sent to
one of two different websites, offering the same products, but with
different designs. Is there a difference in average page views
between the new and old website design?
Use data from "website" sheet in excel. Run the
appropriate statistical test using α=0.01 . Which of the following...

A business analyst wants to know if a new website design
compared to an old website design is showing increased page views
per visit. Two different samples of customers are randomly sent to
one of two different websites, offering the same products, but with
different designs. Is there a difference in average page views
between the new and old website design?
Use data from "website" sheet in excel. Which
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Electrobat, a battery manufacturer, is investigating how storage
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data is shown in the accompanying table.
0
degrees F (hrs to discharge)
30 degrees F (hrs to discharge)
60 degrees F...

Bag
Blue
Orange
Green
Yellow
Red
Brown
Total Number of Candies
1
7
23
9
11
4
6
60
2
16
16
4
7
9
4
56
3
14
14
3
10
5
11
57
4
13
14
7
8
8
6
56
5
18
12
7
10
5
7
59
6
12
9
11
9
8
8
57
7
15
16
6
6
6
8
57
8
15
17
8
4
6
7
57
9
12
14
10
5...

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