5) Cost of Residential Water. On its municipal website, the city of Tulsa states that the rate it charges per 5 CCF of residential water is $21.62. How do the residential water rates of other US public utilities compare to Tulsa’s rate? The file ResidentialWater contains the rate per 5 CCF of residential water for 42 randomly selected US cities. Formulate hypotheses that can be used to determine whether the population mean rate per 5 CCF of residential water charged by US public utilities differs from the $21.62 rate charged by Tulsa. What is the p-value for your hypothesis test in part (a)? At a = .05, can your null hypothesis be rejected? What is your conclusion? Repeat the preceding hypothesis test using the critical value approach. Public Utility Company Rate (5 CCF) Orlando Utilities Commission $10.48 Memphis Light, Gas and Water $9.18 Central Arkansas Water $11.80 City of Phoenix Water System $6.50 City of Lincoln Water System $12.42 San Antonio Water System $14.53 Salt Lake City Public Utilities $15.56 Nashville Metro Water Services $10.12 City of Dover Water System $14.50 Lakeland Electric $16.18 Huntsville Utilities $17.60 Omaha Metropolitan Utilities District $19.18 Jacksonville Electric Authority $17.98 City of Dallas Water System $12.85 City of St. Louis Water System $16.80 Charleston Water System $17.35 City of Clewiston Water System $15.64 Springfield (IL) City Water, Light and Power $14.80 City Of Milwaukee Water System $18.91 Detroit Sewerage and Water Department $17.99 City of Charlotte Water System $14.90 Louisville Water Company $18.42 City of Jackson (MS) Water System $16.05 Las Vegas Valley Water District $26.85 City of Columbus OH Water System $22.32 City of Oklahoma City - Utilities $22.76 Jackson TN Energy Authority $20.98 Knoxville Utilities Board $23.45 New York City Water Board $19.05 Reno Truckee Meadows Water Authority $23.70 Chattanooga American Water Company $19.26 Marietta Board of Lights & Water $23.75 City Utilities of Springfield MO $27.80 Indianapolis Citizens Energy Group $27.05 City of Philadelphia Water System $27.14 LA Sewerage and Water Board of New Orleans $26.99 Boston Water and Sewer Commission $24.68 Birmingham Water Works $37.86 Austin Water $26.51 City of Bellevue Water System $39.01 City of Los Angeles Water System $29.46 Peoria American Water $41.65

5) Cost of Residential Water. On its municipal website, the city of Tulsa states that the rate it charges per 5 CCF of residential water is $21.62. How do the residential water rates of other US public utilities compare to Tulsa’s rate? The file ResidentialWater contains the rate per 5 CCF of residential water for 42 randomly selected US cities. Formulate hypotheses that can be used to determine whether the population mean rate per 5 CCF of residential water charged by US public utilities differs from the $21.62 rate charged by Tulsa. What is the p-value for your hypothesis test in part (a)? At a = .05, can your null hypothesis be rejected? What is your conclusion? Repeat the preceding hypothesis test using the critical value approach. Public Utility Company Rate (5 CCF) Orlando Utilities Commission $10.48 Memphis Light, Gas and Water $9.18 Central Arkansas Water $11.80 City of Phoenix Water System $6.50 City of Lincoln Water System $12.42 San Antonio Water System $14.53 Salt Lake City Public Utilities $15.56 Nashville Metro Water Services $10.12 City of Dover Water System $14.50 Lakeland Electric $16.18 Huntsville Utilities $17.60 Omaha Metropolitan Utilities District $19.18 Jacksonville Electric Authority $17.98 City of Dallas Water System $12.85 City of St. Louis Water System $16.80 Charleston Water System $17.35 City of Clewiston Water System $15.64 Springfield (IL) City Water, Light and Power $14.80 City Of Milwaukee Water System $18.91 Detroit Sewerage and Water Department $17.99 City of Charlotte Water System $14.90 Louisville Water Company $18.42 City of Jackson (MS) Water System $16.05 Las Vegas Valley Water District $26.85 City of Columbus OH Water System $22.32 City of Oklahoma City - Utilities $22.76 Jackson TN Energy Authority $20.98 Knoxville Utilities Board $23.45 New York City Water Board $19.05 Reno Truckee Meadows Water Authority $23.70 Chattanooga American Water Company $19.26 Marietta Board of Lights & Water $23.75 City Utilities of Springfield MO $27.80 Indianapolis Citizens Energy Group $27.05 City of Philadelphia Water System $27.14 LA Sewerage and Water Board of New Orleans $26.99 Boston Water and Sewer Commission $24.68 Birmingham Water Works $37.86 Austin Water $26.51 City of Bellevue Water System $39.01 City of Los Angeles Water System $29.46 Peoria American Water $41.65

Name: 5) Cost of Residential Water. On its municipal website, the city of Tu
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Description: 5) Cost of Residential Water. On its municipal website, the city of Tulsa states that the rate it charges per 5 CCF of residential water is $21.62. How do the residential water rates of other US public utilities compare to Tulsa’s rate? The file Resi

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018

18th Edition

ISBN:9780079039897

Author:Carter

Publisher:Carter

Chapter10: Statistics

Section10.6: Summarizing Categorical Data

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5) Cost of Residential Water. On its municipal website, the city of Tulsa states that the rate it charges per 5 CCF of residential water is $21.62. How do the residential water rates of other US public utilities compare to Tulsa’s rate? The file ResidentialWater contains the rate per 5 CCF of residential water for 42 randomly selected US cities.

Formulate hypotheses that can be used to determine whether the population mean rate per 5 CCF of residential water charged by US public utilities differs from the $21.62 rate charged by Tulsa.
What is the p-value for your hypothesis test in part (a)?
At a = .05, can your null hypothesis be rejected? What is your conclusion?
Repeat the preceding hypothesis test using the critical value approach.

Public Utility Company	Rate (5 CCF)
Orlando Utilities Commission	$10.48
Memphis Light, Gas and Water	$9.18
Central Arkansas Water	$11.80
City of Phoenix Water System	$6.50
City of Lincoln Water System	$12.42
San Antonio Water System	$14.53
Salt Lake City Public Utilities	$15.56
Nashville Metro Water Services	$10.12
City of Dover Water System	$14.50
Lakeland Electric	$16.18
Huntsville Utilities	$17.60
Omaha Metropolitan Utilities District	$19.18
Jacksonville Electric Authority	$17.98
City of Dallas Water System	$12.85
City of St. Louis Water System	$16.80
Charleston Water System	$17.35
City of Clewiston Water System	$15.64
Springfield (IL) City Water, Light and Power	$14.80
City Of Milwaukee Water System	$18.91
Detroit Sewerage and Water Department	$17.99
City of Charlotte Water System	$14.90
Louisville Water Company	$18.42
City of Jackson (MS) Water System	$16.05
Las Vegas Valley Water District	$26.85
City of Columbus OH Water System	$22.32
City of Oklahoma City - Utilities	$22.76
Jackson TN Energy Authority	$20.98
Knoxville Utilities Board	$23.45
New York City Water Board	$19.05
Reno Truckee Meadows Water Authority	$23.70
Chattanooga American Water Company	$19.26
Marietta Board of Lights & Water	$23.75
City Utilities of Springfield MO	$27.80
Indianapolis Citizens Energy Group	$27.05
City of Philadelphia Water System	$27.14
LA Sewerage and Water Board of New Orleans	$26.99
Boston Water and Sewer Commission	$24.68
Birmingham Water Works	$37.86
Austin Water	$26.51
City of Bellevue Water System	$39.01
City of Los Angeles Water System	$29.46
Peoria American Water	$41.65

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