Test the hypothesis that the average price is higher than

The average prices for a product in 12 stores in a city are shown below.

$2.99, $2.15, $3.25, $3.55, $3.00, $2.99, $2.66, $3.50, $3.20, $2.15, $3.75, $3.85

Test the hypothesis that the average price is higher than $2.57. Use level of significance a = 0.05.

The toylot company makes an electric train with a motor : the toylot company makes an electric train with a motor that it claims will draw an average of only 0.8 ampere a under

What is the value of the sample test statistic round your : professor jennings claims that only 35 of the students at flora college work while attending school. dean renata thinks

If 9 square meters are chosen at random for a mosquito : the average number of mosquitos in a stagnant pond is 70 per square meter with a standard deviation of 12. if 9 square

The mean weight of loads of rock is 490 tons with a : the mean weight of loads of rock is 49.0 tons with a standard deviation of 12.0 tons. if 9 loads are chosen at random

Test the hypothesis that the average price is higher than : the average prices for a product in 12 stores in a city are shown below.2.99 2.15 3.25 3.55 3.00 2.99 2.66 3.50 3.20

A charity receives 1700 contributions contributions are : a charity receives 1700 contributions. contributions are assumed to be independent and identically distributed with

Suppose a manufacturing company makes a certain item the : suppose a manufacturing company makes a certain item. the time to produce each item is normally distributed around a

Suppose an x distribution has mean icircfrac14 4 consider : suppose an x distribution has mean icircfrac14 4. consider two corresponding x distributions the first based on

1 in a recent survey of 4513 college undergraduates 20 : 1. in a recent survey of 4513 college undergraduates 20 reported having fallen asleep in class. to test this