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grin007 [14]
3 years ago
9

When we make inferences about ONE POPULATION PROPORTION, what assumptions do we need to make? Mark all that apply. Group of answ

er choices Counts of successes and failures at least 15 each. Data is quantitative. Data is categorical. Sample Size is 30 or more. Data must be from a simple random sample. The data must have a Normal Distribution. Counts of successes and failures at least 5 each.
Mathematics
1 answer:
natita [175]3 years ago
7 0

Answer:

Data is quantitative, data is categorical, data must be from a simple random sample, the data mut have normal distribution,

Step-by-step explanation:

When we make inference about one population proportion, we must ensure that the sample was taken randomly and observations follow a normal distribution. The sample size must be as large as possible with at least 10 counts of failures an 10 counts of successes. The  individual observations must be independent. They must be quantified and categorized.

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Answer:

The correct answer is 72 + 4 × x \geq 400.

Step-by-step explanation:

The dance committee of Pine Bluff Middle School earns $72 from a bake sale and will earn $4 for each ticket they sell to the Spring Fling dance.

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Let x number of tickets the committee could sell.

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The committee should have some left over money also after spending for the dance which costs $400.

Thus the inequality to determine the number of tickets the committee could sell to have money left over after they pay for this year's dance is given by,

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Answer:

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Let x represent number of days.

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