Question

Assume that a simple random sample has been selected from a normally distributed population.

The world's smallest mammal is the bumblebee bat, also known as the Kitti's hog-nosed bat (or Craseonycteris thonglongyai). Such bats are roughly the size of a large bumblebee. Listed below are ten weights (in grams) from a sample of these bats.

1.9

1.6

2

2

1.8

1.5

1.5

1.3

2.3

2.1

a) Use a 0.05 significance level and test the claim that these bats come from the same population having a mean weight equal to 1.8 grams.

Claim:   ---Select--- < > = ≠ ≤ ≥ 1.8

Ho:     ---Select--- < > = ≠ ≤ ≥ 1.8

H1:     ---Select--- < > = ≠ ≤ ≥ 1.8

b) What is the rejection result?

Do not reject H_o.Reject H_o.    Do not reject H₁.Reject H₁.

c) What is the statistical conclusion?

The sample data provides evidence to support the claim.The sample data does not provide sufficient evidence to support the claim.    The sample data does not provide sufficient evidence to warrant rejection of the claim.The sample data provides sufficient evidence to warrant rejection of the claim.

Answer 1

The statistical software output for this problem is :

H₀ : μ = 1.8
H_A : μ ≠ 1.8

P-value = 1

Do not reject H_o

The sample data does not provide sufficient evidence to warrant rejection of the claim