Option D) Reject the claim that the proportion of Americans that have seen a UFO is equal to 5 in a thousand when that proportion is actually 5 in a thousand.

Step-by-step explanation:

We are given the following information:

A hypothesis test to support the given claim that the proportion of Americans that have seen a UFO is less than 5 in a thousand.

Type I error:

Type I error is the rejection of a true null hypothesis that is we reject the null hypothesis given it is true.
It is also known as a false positive.

First, we design the null and the alternate hypothesis

$H_{0}: \text{ The proportion of Americans that have seen a UFO is equal to 5 in a thousand}\\H_A: \text{ The proportion of Americans that have seen a UFO is less than 5 in a thousand}$

Thus, for the given hypothesis test, we describe type I error as:

Option D) Reject the claim that the proportion of Americans that have seen a UFO is equal to 5 in a thousand when that proportion is actually 5 in a thousand.

3 0

4 years ago

Fran cycles at a speed of 5.3 m/s for 5 minutes.<br><br> How far does she travel?

chubhunter [2.5K]

Step-by-step explanation:

In 1 second Fran cycles 5.3 m.

So we need to work out how many seconds is in 5 minutes.

1 minute = 60 seconds

5 minutes = 60*5 = 300 seconds

So Fran cycles at a speed of 5.3 m/s in 300 seconds.

1 second = 5.3m

300 seconds = 5.3*300 = 1590m

Hope this helps!

6 0

4 years ago

Out of 70 student 70% passed how many student passed

topjm [15]

70% = 0.70

70 * 0.70 = 49

so 49 students passed

3 0

3 years ago

One book costs 95p how much do 5 books cost

Leni [432]

SO

95px5=475

So it is $4.75

4 0

3 years ago

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