PLEASE HELPPP ITS A TEST THAT IS DUE IN LIKE 20 MIN THIS IS THE LAST QUESTION.

Mathematics

2 answers:

expeople1 [14]2 years ago

5 0

Answer:

$35.16 Was the total amount spent at the restaurant.

Step-by-step explanation:

The first step is to change 20% to a decimal by moving the decimal point over twice.

20% → .20

Then, simply multiply .20 by 29.30.

.20 × 29.30 = 5.86

Okay, so- That was how to get the percentage for a number. Now, all you need to do is add 5.86 to the total bill to get the total amount spent. Like this:

29.30 + 5.86 = 35.16

Sergio039 [100]2 years ago

4 0

Answer:

$35.20

Step-by-step explanation: 29.30+20%=35.20

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Company A makes a large shipment to Company B. Company B can reject the shipment if they can conclude that the proportion of def

boyakko [2]

Answer:

$z=\frac{0.1475-0.1}{\sqrt{\frac{0.1(1-0.1)}{400}}}=3.17$

The p value for this case would be given by:

$p_v =P(z>3.17)=0.00076$

For this case the p value is lower than the significance level so then we have enough evidence to reject the null hypothesis and we can conclude that the true mean is significantly higher than 0.1 and then Company B can reject the shipment

Step-by-step explanation:

Information provided

n=400 represent the random sample taken

X=59 represent number of defectives from the company B

$\hat p=\frac{59}{400}=0.1475$ estimated proportion of defectives from the company B