The time to order and deliver a pizza at jimbo’s pizza was 48 minutes. jim, the owner, implements a new system for ordering and delivering pizzas that he believes will reduce the time required to get a pizza to his customers.

a. determine the null and alternative hypotheses.

b. explain what it would mean to make atypei error.

c. explain what it would mean to make a type ii error.

(a) Null hypothesis: The time to order and deliver a pizza to his customers at Jimbo's pizza is 48 minutes

Alternate hypothesis: The time to order and deliver a pizza to his customers at Jimbo's pizza is less than 48 minutes

(b) To make a type I error means that the null hypothesis is rejected when it is true

(c) To make a type II error means that the null hypothesis is accepted when it is false

Step-by-step explanation:

(a) A null hypothesis is a statement deduced from a population parameter which would be tested to be true or false.

An alternate hypothesis is a statement deduced a population parameter that negates the null hypothesis.

(b) Type I error means rejecting the null hypothesis when it is true

(c) Type II error means accepting the null hypothesis when it is false

2,600 divided by 80 = 32.5

step-by-step explanation:

reduce the friction between its moving parts

step-by-step explanation:

in fact, by reducing the friction between the moving parts of the machine, it is possible to reduce the energy wasted due to this friction; therefore, more input energy is converted into useful work, and this will improve the efficiency of the machine.