Question: how do i work out the Z value & P value with the below info if the cake cost 30 Lower limit 25.63222615 Upper limit

how do i work out the Z value & P value with the below info if the cake cost 30

Lower limit 25.63222615
Upper limit 25.7661304
MyCakes
Mean 25.70
Standard Error 0.034152489
Median 26
Mode 26
Standard Deviation 2.6
Sample Variance 6.52946511
Kurtosis -1.050932887
Skewness -0.221387665
Range 9
Minimum 21
Maximum 30
Sum 143864
Count 5598
Confidence Level(95.0%) 0.066952126

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