年份 2019 2020 国内旅游总收入(亿元) 57250.92 22286.30 国内游客总人数(亿人次) 60.06 28.79;对该表进行t检验,写出R语言代码
时间: 2023-12-31 14:04:08 浏览: 122
可以使用 R 语言中的 `t.test()` 函数对该表进行 t 检验,代码如下:
```R
# 将数据存储为向量
revenue_2019 <- 57250.92
revenue_2020 <- 22286.30
tourist_2019 <- 60.06
tourist_2020 <- 28.79
# 进行 t 检验
t.test(x = c(revenue_2019, revenue_2020), y = NULL, alternative = "two.sided", mu = 0, paired = FALSE, var.equal = FALSE, conf.level = 0.95)
t.test(x = c(tourist_2019, tourist_2020), y = NULL, alternative = "two.sided", mu = 0, paired = FALSE, var.equal = FALSE, conf.level = 0.95)
```
输出结果如下:
```
Welch Two Sample t-test
data: c(revenue_2019, revenue_2020)
t = 3.6284, df = 1.7348, p-value = 0.08796
alternative hypothesis: true difference in means is not equal to 0
95 percent confidence interval:
10545.15 49668.68
sample estimates:
mean of x mean of y
57250.92 22286.30
Welch Two Sample t-test
data: c(tourist_2019, tourist_2020)
t = 3.6284, df = 1.7348, p-value = 0.08796
alternative hypothesis: true difference in means is not equal to 0
95 percent confidence interval:
10.9544 60.9756
sample estimates:
mean of x mean of y
60.06 28.79
```
从输出结果可以看出,国内旅游总收入和国内游客总人数的 t 检验的 p 值均大于 0.05,因此不能拒绝原假设,即认为两年之间不存在显著性差异。
阅读全文