On a survey, 7 students reported how many minutes it takes them to travel to school. Here are their responses.

Mathematics

2 answers:

dem82 [27]3 years ago

8 0

Answer:

Step-by-step explanation:

The mean of the minutes reported is 8. The mean is the average, or the sum of the data divided by the total number of data.

zysi [14]3 years ago

6 0

Answers is

explaining

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artcher [175]

Answer:

2. H0: Pe = Pw

H1: Pe $\neq$ Pw

B) Test statistics 1.96

Step-by-step explanation:

Null hypothesis is a statement that is to be tested against the alternative hypothesis and then decision is taken whether to accept or reject the null hypothesis. In the given scenario the test is to identify whether there is any difference in annual goals between western division and eastern division. The null hypothesis will be the Goals of western are equal to eastern division and alternative hypothesis will be Goals of western are not equal to eastern division.

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A manager at a factory finds that in a random sample of 250 watches, 3 are defective. Of the 7,500 watches from which the sample

gregori [183]

Answer: 7410 watches

Step-by-step explanation:

From the random sample of 250 watches, 3 are defective. The percentage that's defective will be:

= 3/250 × 100

= 1.2%

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Therefore, from the sample of 7500 watches, the number that's not defective will be:

= 98.8% of 7500