Carly is putting a vase of flowers on each table for a family reunion. Each vase will contain 15 flowers. There are 12 rows with 8 tables each and 18 rows with 7 tables each. How many flowers does Carly need? A 222 flowers
B 500 flowers
C 3,330 flowers
D7500 flowers

There is enough statistical evidence to suggest that there is no difference between the mean number of households picking either service

Step-by-step explanation:

The parameters of the music streaming service are;

The average number of households using Apple Music, = 1.73 million

The standard deviation, σ₁² = 0.46 million

The average number of households using Spotify, = 2.17 million

The standard deviation, σ₂² = 0.33 million

The significance level = 0.01

Hypothesis testing with different population standard deviation

H₀: ≠

H₁:   =

p-value for the test statistic = 2 × P(Z <-2.6923) = 2 × 0.00357 = 0.00714

Therefore, the p-value is less than the significance level, and it is therefore unlikely that the result will be observed under the null hypothesis

We therefore reject the null hypothesis and there is enough statistical evidence to suggest that there is no difference between the mean number of households picking either service