I received the following error while running the below mentioned code in jupyter notebook
Error in parse(text = x, srcfile = src): <text>:6:12: unexpected input 5: 6: z <- (xbar <e2> ^ Traceback: The code:
xbar <- 9900 # sample mean mu <- 10000 # hypothesized value sigma <- 120 # population standard deviation n <- 30 # sample size z <- (xbar − mu)/(sigma/sqrt(n)) The − (minus sign) in your example looks like it might actually be the en dash character. Here is the character in your example, followed by the standard keyboard dash/hyphen character: −, -.
If you delete that character and type the standard dash character, does the code run as expected?
Here's a reproduction of your error in a regular R session. The first version is your original code. In the second, I've replaced the en dash with a standard dash. I haven't used code formatting below, because the two dashes look exactly the same after going through the code formatter.
(xbar − mu)/(sigma/sqrt(n))
Error: unexpected input in "(xbar �"(xbar - mu)/(sigma/sqrt(n))
[1] -4.564355
