Question

Year | Unemployment rate | gdp growth | cpi | inflation rate |

1980 | 7.2 | -0.2 | 87 | |

1981 | 7.6 | 2.6 | 94 | 8.05 |

1982 | 9.7 | -1.9 | 97.6 | 3.83 |

1983 | 9.6 | 4.6 | 101.3 | 3.79 |

1984 | 7.5 | 7.3 | 105.3 | 3.95 |

1985 | 7.2 | 4.2 | 109.3 | 3.80 |

1986 | 7.0 | 3.5 | 110.5 | 1.10 |

1987 | 6.2 | 3.5 | 115.4 | 4.43 |

1988 | 5.5 | 4.2 | 120.5 | 4.42 |

1989 | 5.3 | 3.7 | 126.1 | 4.65 |

1990 | 5.6 | 1.9 | 133.8 | 6.11 |

1991 | 6.9 | -0.1 | 137.9 | 3.06 |

1992 | 7.5 | 3.6 | 141.9 | 2.90 |

1993 | 6.9 | 2.7 | 145.8 | 2.75 |

1994 | 6.1 | 4.0 | 149.7 | 2.67 |

1995 | 5.6 | 2.7 | 153.5 | 2.54 |

1996 | 5.4 | 3.8 | 158.6 | 3.32 |

1997 | 4.9 | 4.5 | 161.3 | 1.70 |

1998 | 4.5 | 4.5 | 163.9 | 1.61 |

1999 | 4.2 | 4.7 | 168.3 | 2.68 |

2000 | 4.0 | 4.1 | 174 | 3.39 |

2001 | 4.7 | 1.0 | 176.7 | 1.55 |

2002 | 5.8 | 1.8 | 180.9 | 2.38 |

2003 | 6.0 | 2.8 | 184.3 | 1.88 |

2004 | 5.5 | 3.8 | 190.3 | 3.26 |

2005 | 5.1 | 3.3 | 196.8 | 3.42 |

2006 | 4.6 | 2.7 | 201.8 | 2.54 |

2007 | 4.6 | 1.8 | 210.04 | 4.08 |

2008 | 5.8 | -0.3 | 210.23 | 0.09 |

2009 | 9.3 | -2.8 | 215.95 | 2.72 |

2010 | 9.6 | 2.5 | 219.18 | 1.50 |

2011 | 8.9 | 1.6 | 225.67 | 2.96 |

2012 | 8.1 | 2.2 | 229.6 | 1.74 |

2013 | 7.4 | 1.7 | 233.05 | 1.50 |

2014 | 6.2 | 2.6 | 234.81 | 0.76 |

2015 | 5.3 | 2.9 | 236.52 | 0.73 |

2016 | 4.9 | 1.5 | 241.43 | 2.08 |

Using the data provided on, graph GDP growth rate, the inflation rate and the unemployment rate from 1980-2016 on a single graph. Interpret these data. I don't need the graph I really just need the interpretation. Please and thank you.

Answer #1

Use the data in Bank Dataset to answer this question.
Construct a 95% confidence interval for the mean increase in
deposits. Note that the population standard deviation σ is not
known in this case. Instead the sample standard deviation s should
be calculated from the sample and the t distribution should be
used.
2. What is the margin of error at the 95% confidence level?
Bank Dataset of Increase in deposits. Mean is 4. Sample size is
152 customers.
4.3...

SHOW ALL WORK. DO NOT USE SOFTWARE TO GENERATE ANSWERS.
Calculate the R-chart and X-bar chart limits for the data given
below.
Day
A
B
C
D
1
7.2
8.4
7.9
4.9
2
5.6
8.7
3.3
4.2
3
5.5
7.3
3.2
6.0
4
4.4
8.0
5.4
7.4
5
9.7
4.6
4.8
5.8
6
8.3
8.9
9.1
6.2
7
4.7
6.6
5.3
5.8
8
8.8
5.5
8.4
6.9
9
5.7
4.7
4.1
4.6
10
3.7
4.0
3.0
5.2
11
2.6
3.9...

We wish to determine the impact of Specification Buying, X11, on
Satisfaction Level, X10. To do so we will split the Hatco data file
into two separate data sets based on the Specification Buying, X11.
This variable has two categories:
1=employs total value analysis approach, evaluating each
purchase separately;
0 = use of specification buying.
Sort the entire Hatco data set based on Specification Buying.
This will create two separate groups of records. Those records with
X11 = 0 and...

Build a stem-and-leaf plot for these measurements
3.1
4.9
2.8
3.6
2.5
4.5
3.5
3.7
4.1
4.9
2.9
2.1
3.5
4.0
3.7
2.7
4.0
4.4
3.7
4.2
3.8
6.2
2.5
2.9
2.8
5.1
1.8
5.6
2.2
3.4
2.5
3.6
5.1
4.8
1.6
3.6
6.1
4.7
3.9
3.9
4.3
5.7
3.7
4.6
4.0
5.6
4.9
4.2
3.1
3.9
A. Describe the form of data distribution. Do you notice any
unusual results?
B. Use the stem-and-leaf plot to find the minimum
observation....

Data shows the times for carrying out a blood test at
Rivervalley Labs
Using Excel Plot a histogram of the data. What type of
distribution does the data appear to follow?
Construct and interpret the 95% confidence interval for the
population mean time for carrying out a blood test. Assume that the
population standard deviation is unknown.
Times for blood tests (minutes)
2.5
4.9
3.6
4.3
1.9
3.4
3.2
4.0
3.1
3.6
3.9
4.4
3.9
3.1
2.7
3.5
3.6
3.7...

A. Use the three- and seven-term moving averages to generate
one-step ahead forecasts for 1981 to the end of the series. Graph
the results, and comment on the difference between the two moving
averages.
B. Compare the performance of the two procedures by calculating
the RMSE and MAE. Why is Mape inappropriate in this case?
Please show to do this in excel, I am having a difficult time
understanding how this is done.
Year
GDP Growth
1963
4.4
1964
5.8...

7. Using Excel, find the mean and the standard deviation of the
AT&T speeds from the data set #32 Airport Data Speeds. Round
your answers to 3 decimal places. (Show your work!)
mean, x :
standard deviation:
AIRPORT
CODE
VERIZON
SPRINT
AT&T
T-MOBILE
ATL
77.8
0.4
33.9
27.3
AUS
28.5
0.5
29.0
5.1
BNA
1.9
2.3
4.6
9.5
BOS
6.2
1.0
11.7
9.6
BWI
43.0
3.4
12.7
3.2
CLE
15.1
0.5
7.6
24.7
CLT
7.9
1.1
9.1
4.4
CMH
25.7...

Year-Year Percent Change in Commodities CPI
Year-Year Percent Change in Services CPI
Year
Commodities%
Services%
1960
0.9
3.4
1961
0.6
1.7
1962
0.9
2.0
1963
0.9
2.0
1964
1.2
2.0
1965
1.1
2.3
1966
2.6
3.8
1967
1.9
4.3
1968
3.5
5.2
1969
4.7
6.9
1970
4.5
8.0
1971
3.6
5.7
1972
3.0
3.8
1973
7.4
4.4
1974
11.9
9.2
1975
8.8
9.6
1976
4.3
8.3
1977
5.8
7.7
1978
7.2
8.6
1979
11.3
11.0
1980
12.3
15.4
1981
8.4...

Jobs and productivity! How do retail stores rate? One way to
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Assume σ ≈ 3.8 thousand dollars.
4.0
6.9
4.5
9.0
7.5
5.8
8.2
5.6
2.6
2.9
8.1
−1.9
11.9
8.2
6.4
4.7
5.5
4.8
3.0
4.3
−6.0
1.5
2.9
4.8
−1.7
9.4
5.5
5.8
4.7
6.2
15.0
4.1...

An important statistical measurement in service facilities (such
as restaurants and banks) is the variability in service times. As
an experiment, two bank tellers were observed, and the service
times for each of 100 customers were recorded. Do these data allow
us to infer at the 5% significance level that the variance in
service times differs between the two tellers? Estimate with 95%
confidence the ratio of variances of the two bank tellers. Teller 1
Teller 2 7.2 10.9 5.4...

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