okay is this a better thesis?

Minnie Wright’s insanity relates to isolation, unhappy marriage and the gender difference all causes her to the murder of her husband.

You've still simply stated the facts of the story. No opinion here.

A true thesis statement includes factual information plus your opinion or the position you take regarding that factual information.

So ... what's your OPINION about what Minnie Wright did?
Is your opinion something all the other readers of the story would agree with? If so, ditch it and write another. You want an opinion or position that you have to support -- to convince others that you are right, no matter what they thought at first.

fact + opinion = thesis

is this a good srong thesis statemnent? Minnie acted out of rage and lost her sanity which relates to the isolationa, dender differnece and unhappines.

is this a good srong thesis statemnent? Minnie acted out of rage and lost her sanity which relates to the isolation, gender differnece and unhappy marriage.

Yes, your thesis statement is much improved. It clearly states Minnie Wright's insanity as the main cause of her husband's murder and identifies isolation, an unhappy marriage, and gender differences as contributing factors. This thesis provides a clear focus for your essay and outlines the key points you will discuss to support your argument.

To further strengthen your thesis statement, you can consider the following suggestions:

1. Clarify the cause-effect relationship: Specify how Minnie Wright's insanity is directly related to the murder of her husband. For example, you could mention that her deteriorating mental state led her to commit the crime.

2. Provide context: Briefly explain why isolation, an unhappy marriage, and gender differences contribute to her insanity. This will help your readers understand the underlying factors that lead to her actions. For instance, you can mention that her isolation and unhappy marriage aggravated her mental state, while gender differences might have contributed to her feelings of powerlessness and frustration.

Remember to include these additional details while revising your thesis statement to make it even stronger.