Isosceles triangle has a line of symmetry
2 answers:
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Answer:
The calculated value Z = 1.5950 < 1.96 at 0.05 level of significance
The null hypothesis is accepted at a 0.05 level of significance
The proportion of cell phone owners in that country who have a smartphone has not increased over time
Step-by-step explanation:
<u><em>Step(i):-</em></u>
Given that the random sample size 'n' = 934
Given that the population proportion P = 0.51
Q= 1-P
Q = 1- 0.51 = 0.49
The sample proportion
Level of significance = 0.05
Critical value Z₀.₀₅ = 1.96
<u><em>Step(ii):-</em></u>
Null hypothesis: P < 0.51
Alternative Hypothesis : P > 0.51
Test statistic
Z = 1.5950
<u><em>Final answer:-</em></u>
Given that P-value 0. 0532
P-value > 0.05
Rejected Alternative Hypothesis and accepted null hypothesis
( OR)
The calculated value Z = 1.5950 < 1.96 at 0.05 level of significance
The null hypothesis is accepted at a 0.05 level of significance
The proportion of cell phone owners in that country who have a smartphone has not increased over time