Question: Criterion : Calculate confidence intervals using SPSS. Data : Rex's Flower Shop advertised fresh cut roses that last longer than other roses. The mean vase

Criterion: Calculate confidence intervals using SPSS.

Data: Rex's Flower Shop advertised fresh cut roses that last longer than other roses. The mean vase life for a rose is 8 days. The following is a sample of the number of vase life days for 9 bouquets of roses from Rex's Flower Shop: 8, 6, 12, 11, 8, 9, 14, 15, 10.

Instruction: Based on the SPSS output fom 3.10 including a test value (population mean) of 8, calculate the 95 percent confidence interval.

One-Sample Statistics

Mean

Std. Deviation

Std. Error Mean

Roses

10.33

2.958

.986

One-Sample Test

Test Value = 8

Sig. (2-tailed)

Mean Difference

95% Confidence Interval of the Difference

Lower

Upper

Roses

2.366

.045

2.333

.06

4.61

How do I hand calculate this?

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