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lord [1]
3 years ago
13

A national grocery store chain designed a study to determine whether its customers would be interested in home delivery. The cha

in randomly surveyed 1,000 customers from around the country. It concluded from the study that 80% of all customers who shopped in the chain's stores were interested in the service. What is the parameter of the study's population?
Mathematics
2 answers:
Anna35 [415]3 years ago
6 0

Answer:

I think it is A) 1,000

Step-by-step explanation:

SashulF [63]3 years ago
5 0
The parameter of the study's population is the 80% of all customers who shopped in the chain's stores that were interested in the home delivery service.

Population parameter is defined as any summary number that describes the entire population. It can be an average or a percentage/

The 1,000 customers that were surveyed are the sample of the population. They basically represent the population of the chain's customers. 
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mario62 [17]

Step-by-step explanation:

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4 0
3 years ago
(a) determine the null and alternative hypotheses, (b) explain what it would mean to make a Type I error, and (c) explain what i
iren2701 [21]
Null: the mean amount of peanut butter in a jar is equal to 32 oz.
alternative: the mean amount of peanut butter in a Jar is less than 32oz.

type 1 error is is rejecting the null when it is actually true. this means that we would say that the mean amount of peanut butter is not equal to 32 when it actually is.

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3 0
3 years ago
carley beat the school record for the 400 meter run by 1.3 seconds. if she ran the race in 55.7 seconds what was the record?
Vika [28.1K]

Answer:

If Carley ran the 400 meter run in a total of 55.7 seconds and she beat the record by 1.3 seconds, you would add 55.7 and 1.3

55.7+1.3= 57 seconds

The past school record for the girls 400 meter run was 57 seconds

Hope this helps ;)

4 0
3 years ago
A cone with volume 1350 m³ is dilated by a scale factor of 1/3.
ki77a [65]

Answer:

450

Step-by-step explanation:

You basically do 1350 * 1/3 or 1350/3

6 0
3 years ago
Read 2 more answers
Jimmy notices 7oranges weigh the same as 5 apples. If Jimmy has 28 oranges, how many apples would Jimmy need to equal the weight
pychu [463]

Answer:

20

Step-by-step explanation:

7 times 4 equals 28 and 5 times 4 equals 20 so the answer is 20

6 0
3 years ago
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