23 bhfhcjvufhfvufyfdydydculcho
Answer:
The alternative hypothesis is:
<em>Hₐ</em>: The workers with automatic dispensers are more productive than restaurant with manual dispensers.
Step-by-step explanation:
In this case we need to determine whether the workers with automatic dispensers are significantly more productive than restaurant with manual dispensers.
To test this a random sample of 9 workers from a restaurant with automatic dispensers and 9 works from a restaurant with manual dispensers are selected.
The significance level of the test is, <em>α</em> = 0.01.
A Mann-Whitney U test is used to determine whether the randomly selected value from one population is either more than or less than the same value selected from another population.
The hypothesis can be defined as follows:
<em>H₀</em>: The workers with automatic dispensers are as productive as restaurant with manual dispensers.
<em>Hₐ</em>: The workers with automatic dispensers are more productive than restaurant with manual dispensers.
Answer:
5600 × 7 = 32, 000 You should multiply
Answer:
The 5th day must be 90
Step-by-step explanation:
The first 4 days averaged out to 80
You can find their total just by multiplying by 4. That won't tell you the exact values, but it will tell you their total when you add the 4 of them together.
80*4 = 320
Now you need to add another day into the mix. Call it x
320 + x
Now there are 5 days, not 4, and the new total is 82.
(320 + x) / 5 = 82 Multiply both sides by 5
5*(320 + x) / 5 = 82 *5
320 + x = 410 Subtract 320
-320 -320
x = 90
