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3 years ago

6

Keisha is having a birthday party. Her mom gave her $30 to purchase items for the party. She brought 16 party hats and 16 bags.

Each party hat cost $0.70 each and each bad cost $0.35 each. How much money did Keisha have left after these purchases

1 answer:

ludmilkaskok [199]3 years ago

3 0

Keisha has $13.2 leftover

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Consider the following hypothesis test: H 0: 20 H a: < 20 A sample of 60 provided a sample mean of 19.5. The population stand

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Answer:

We reject the null hypothesis and accept the alternate hypothesis. Thus, it be concluded that the population mean is less than 20.

Step-by-step explanation:

We are given the following in the question:

Population mean, μ = 60

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Sample size, n = 60

Alpha, α = 0.05

Population standard deviation, σ = 1.8

First, we design the null and the alternate hypothesis

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We use One-tailed z test to perform this hypothesis.

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Since,

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