Perform one-tailed hypothesis test

Assignment Help Basic Statistics

Reference no: EM13109048

A telemarketing company wants to find out if people are more likely to answer the phone between 8pm and 9pm than between 7pm and 8pm. Out of 96 calls between 7pm and 8pm, 72 were answered. Out of 105 calls between 8pm and 9pm, 90 were answered.

Using a one-sided hypothesis test with a 90% confidence level, which of the following statements do these data support?
Source

There is not sufficient evidence that the proportion of people who answer the phone between 8pm and 9pm is greater than the proportion who answer the phone between 7pm and 8pm.
People are more likely to answer the phone between 8pm and 9pm.
Telemarketers should not call at all during the evenings.
People are more likely to answer the phone between 7pm and 8pm.

Reference no: EM13109048

Questions Cloud

Identify which of the two selected paragraphs was effect : Identify which of the two selected paragraphs was more effective, focusing on the writing elements rather than the opinions presented. Analyze why one paragraph was more effective than the other.

Plot the relative the amount of carbon dioxide : In yeast fermentation, CO2 is produced as a function of time. The production of CO2 by yeast is responsible for the rising of bread. Plot the relative the amount of carbon dioxide produced as a function of time.

Compute the vapor pressure : Compute the vapor pressure at 25 °C if it is given that the density of H 2 O=0.9971 g/mL , vapor pressure of H 2 O=23.76 torr, molar mass of sucrose, = 342.3 g/mol,

Explain how much he is over his expected goal : He is expected to maintain shrinkage of no more than 1.5% is sells volume for the period is 1.8 million, explain how much he is over his expected goal?

Perform one-tailed hypothesis test : A telemarketing company wants to find out if people are more likely to answer the phone between 8pm and 9pm than between 7pm and 8pm.

Determined the genotypes of all the offspring : For the purpose of thinking about the genetics of the cross you've made, call the two microsatellite markers A and B. You can then designate the alleles A1, A2, A3, and A4 for the A allele and B1 through B6 for the B marker.

Which parts system perform the subsequent functions : Which parts of the inter augmenters system perform the subsequent functions? Functions during period of alarm or to prevent excess heat loss and the part that produces holocrine substance high in oils and cellular debris to waterproof and soften s..

Calculate upper and lower control limits : A quality analyst wants to construct a sample mean chart for controlling a packaging process. He knows from past experience that the process standard deviation is two ounces.

Determine the specific heat of a metal : Determine the specific heat of a metal object of 19 grams that is heated to 96 degrees Celsius and added to a calorimeter containing 75 grams of H 2 O at 18 degrees Celsius.

User Account

All Pages